Dr.-Ing. Alexander Stroh ISTM

Dr.-Ing. Alexander Stroh

  • Institut für Strömungsmechanik
    Karlsruher Institut für Technologie
    Kaiserstraße 10, Geb. 10.23
    76131 Karlsruhe
    Tel.: +49 721 608 42368
    Fax: +49 721 608 45147

Mehrphasige Strömungen mit Wärmeübertragung

KIT-Nachwuchsgruppe
  • Mehrphasige Strömungen
  • Phasenwechselphänomene
  • Turbulente Strömungen
  • Wärmeübertragung

 

  • Wasserstoff / Brennstoffzellen / Elektrolyseure
  • Mikroreaktoren / Mikrofluidik
  • Maschinelles Lernen (ML) für die Strömungsmechanik
  • CFD/ML-basierte Optimierung

Gruppenmitglieder

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Ko-betreute Doktoranden

Laufende Projekte

Vorhersage der Wärmeübertragung an rauen Oberflächen in turbulenten Strömungen

DigiETOS: Modellierung und Simulation eines Elektrolyseurs

Links

SPP 2331: Maschinelles Lernen für das Design von Grundoperationen im Chemieingeneurwesen

Links

H2Giga/StacIE: Entwicklung eines CFD-Modells für PEM-Elektrolyse in OpenFOAM

Links

Laufende ko-betreute Projekte

Verbesserung der Vorhersagbarkeit von Grenzflächenphänomenen im Zusammenspiel von Experimenten, Direkten Numerischen Simulationen und innovativen Modellbildungsansätzen auf Basis künstlicher Intelligenz

Experimentelle Charakterisierung und Zweiphasenströmungsmodellierung von Wassertransportphänomenen in PEM-Brennstoffzellen

Abgeschlossene Projekte

FOR 2383 ProMiSe: Modellierung, messtechnische Charakterisierung und aktive Kontrolle von Verdampfungsprozessen in Mikrokanalsystemen

Förderung: DFG
Projektlaufzeit: April 2020 - Juni 2023
Projektbearbeiter: Nima Samkhaniani (ISTM, KIT)
Projektbeteiligte: Prof. Dr. Peter Woias, IMTEK, Universität Freiburg

Auf dem Weg zu einem klimafreundlichen Wärmemanagement

In dem Interview berichten die Wissenschaftler über die Fortschritte bei den Untersuchungen von Mikroverdampfer-Technik im Teilprojekt "Modeling, metrological characterization and active control of evaporation processes in microchannel systems" im Rahmen der Forschungsgruppe "Assessing and Controlling Dynamic Local Process Conditions in Microreactors via Novel Integrated Microsensors" (ProMiSe, www.promise.kit.edu). Nima Samkhaniani (ISTM, KIT) und Mark Schepperle (IMTEK, Universität Freiburg) erläutern die Projektziele, die Realisierung und die Herausforderungen der numerischen und experimentellen Untersuchungen für ein Einkanal-Mikroverdampfer-Gerät. Sie zeigen den Herstellungsprozess einschließlich der Reinraumfertigung, das Sensordesign und auch die Details der entsprechenden numerischen Simulation, in der die Nukleationsblasenbildung erfasst wird.

Kooperationen

Prof. Dr. Pourya Forooghi, Universität Aarhus

Prof. Dr. Yosuke Hasegawa, University of Tokyo

Prof. Dr. Mirco Magnini, University Nottingham

Dr. Sepideh Khodoparast, University of Leeds

Jun. Prof. Dr. Sandy Engelhardt, Universitätsklinikum Heidelberg

Lehre

Fakultätslehrpreis für "Einführung in die numerische Strömungsmechanik"

Die Bachelor-Veranstaltung "Einführung in die numerische Strömungsmechanik" erhält Auszeichnung mit dem KIT-Fakultätslehrpreis 2024 für herausragende Lehre:

In diesem Kurs werden vielfältige Inhalte abgedeckt, die von Lösungsverfahrenstheorien und Visualisierungsmethoden bis zu spezialisierten Gebieten wie laminarer und turbulenter Strömung, Mehrphasenströmung und Wärmeübertragung reichen. Ein Hauptaugenmerk liegt auf der praktischen Anwendung dieser Themen durch das Erlernen des gesamten Prozesses von Strömungssimulationen – angefangen bei der Vorbereitung über die Durchführung bis hin zur Analyse – wobei der Schwerpunkt auf Forschungs- und Ingenieurwissenschaften liegt.

Publikationsliste


2025
Investigating the Shortcomings of the Flow Convergence Method for Quantification of Mitral Regurgitation in a Pulsatile In-Vitro Environment and with Computational Fluid Dynamics
Leister, R.; Karl, R.; Stroh, L.; Mereles, D.; Eden, M.; Neff, L.; de Simone, R.; Romano, G.; Kriegseis, J.; Karck, M.; Lichtenstern, C.; Frey, N.; Frohnapfel, B.; Stroh, A.; Engelhardt, S.
2025. Cardiovascular Engineering and Technology, 16 (2), 155–170. doi:10.1007/s13239-024-00763-w
Analysis of Separation in the Roughness Sublayer Using DNS Data and DANS/DEM Modelling of Roughness Effects
Chedevergne, F.; Yang, J.; Stroh, A.; Forooghi, P.
2025. Flow, Turbulence and Combustion, 114 (3), 713–735. doi:10.1007/s10494-024-00585-9
Experimental and numerical study on the effect mechanism of geometric parameters on jet impingement cooling in a limited space
Fu, H.; Luan, J.; Yang, L.; Luan, Y.; Magagnato, F.; Stroh, A.
2025. International Journal of Thermal Sciences, 207, 109384. doi:10.1016/j.ijthermalsci.2024.109384
2024
Multi-objective optimization of jet impingement cooling structure with smooth target surface and enhanced target surface in a limited space
Fu, H.; Luan, J.; Yang, L.; Luan, Y.; Magagnato, F.; Stroh, A.
2024. International Communications in Heat and Mass Transfer, 159, 108192. doi:10.1016/j.icheatmasstransfer.2024.108192
Numerical investigation of bubble dynamics and flow boiling heat transfer in cylindrical micro-pin-fin heat exchangers
El Mellas, I.; Samkhaniani, N.; Falsetti, C.; Stroh, A.; Icardi, M.; Magnini, M.
2024. International Journal of Heat and Mass Transfer, 228, Art.-Nr.: 125620. doi:10.1016/j.ijheatmasstransfer.2024.125620
Assessment of Roughness Characterization Methods for Data-Driven Predictions
Yang, J.; Stroh, A.; Lee, S.; Bagheri, S.; Frohnapfel, B.; Forooghi, P.
2024. Flow, Turbulence and Combustion, 113 (2), 275–292. doi:10.1007/s10494-024-00549-z
Drop rebounding on heated micro-textured surfaces
Toprak, M.; Samkhaniani, N.; Stroh, A.
2024. International Journal of Heat and Mass Transfer, 227, Artk.Nr.: 125498. doi:10.1016/j.ijheatmasstransfer.2024.125498
Drag Assessment for Boundary Layer Control Schemes with Mass Injection
Fahland, G.; Atzori, M.; Frede, A.; Stroh, A.; Frohnapfel, B.; Gatti, D.
2024. Flow, Turbulence and Combustion, 113 (1), 119–138. doi:10.1007/s10494-023-00462-x
Actively learning costly reward functions for reinforcement learning
Eberhard, A.; Metni, H.; Fahland, G.; Stroh, A.; Friederich, P.
2024. Machine Learning: Science and Technology, 5 (1), Art.-Nr.: 015055. doi:10.1088/2632-2153/ad33e0
Flow resistance over heterogeneous roughness made of spanwise-alternating sandpaper strips
Frohnapfel, B.; Deyn, L. von; Yang, J.; Neuhauser, J.; Stroh, A.; Örlü, R.; Gatti, D.
2024. Journal of Fluid Mechanics, 980, 1–35. doi:10.1017/jfm.2024.40
Spatio-temporal reconstruction of droplet impingement dynamics by means of color-coded glare points and deep learning
Dreisbach, M.; Kriegseis, J.; Stroh, A.
2024. Measurement Science and Technology. doi:10.1088/1361-6501/ad8771
Air cleaner prototype: Reduction of airborne viruses and effects of UV-C irradiation on virus concentration and RNA copy numbers considering modeled residence times and doses
Schulz, J.; Lochte, V. N.; Blessing, S.; Stroh, A.; Kriegseis, J.; Kemper, N.; Limbach, M.; Hahn, H.
2024. Aerosol Science and Technology, 1–13. doi:10.1080/02786826.2024.2412633
Machine learning for rapid discovery of laminar flow channel wall modifications that enhance heat transfer
Koide, Y.; Kaithakkal, A. J.; Schniewind, M.; Ladewig, B. P.; Stroh, A.; Friederich, P.
2024. APL Machine Learning, 2 (1), 016108. doi:10.1063/5.0187783
2023
Understanding Inconsistencies in Thermohydraulic Characteristics Between Experimental and Numerical Data for Di Water Flow Through a Rectangular Microchannel
Schepperle, M.; Samkhaniani, N.; Magnini, M.; Woias, P.; Stroh, A.
2023. ASME Journal of Heat and Mass Transfer, 146 (3), 1–33. doi:10.1115/1.4064330
Fluid-mechanical evaluation of different clutch geometries based on experimental and numerical investigations = Strömungsmechanische Bewertung verschiedener Kupplungsgeometrien anhand von experimentellen und numerischen Untersuchungen
Sax, C.; Stroh, A.; Leister, R.; Denda, C.; Bürk, P.; Dreisbach, M.; Kriegseis, J.
2023. Forschung im Ingenieurwesen, 87 (4), 1297–1306. doi:10.1007/s10010-023-00703-5
Prediction of equivalent sand-grain size and identification of drag-relevant scales of roughness – a data-driven approach
Yang, J.; Stroh, A.; Lee, S.; Bagheri, S.; Frohnapfel, B.; Forooghi, P.
2023. Journal of Fluid Mechanics, 975, A34. doi:10.1017/jfm.2023.881
Three-dimensional encoding of a gas–liquid interface by means of color-coded glare points
Dreisbach, M.; Blessing, S.; Brunn, A.; Michaux, F.; Stroh, A.; Kriegseis, J.
2023. Experiments in Fluids, 64 (3), 53. doi:10.1007/s00348-023-03592-0
A comparison of hydrodynamic and thermal properties of artificially generated against realistic rough surfaces
Yang, J.; Velandia, J.; Bansmer, S.; Stroh, A.; Forooghi, P.
2023. International Journal of Heat and Fluid Flow, 99, Art.-Nr.: 109093. doi:10.1016/j.ijheatfluidflow.2022.109093
2022
Particle detection by means of neural networks and synthetic training data refinement in defocusing particle tracking velocimetry
Dreisbach, M.; Leister, R.; Probst, M.; Friederich, P.; Stroh, A.; Kriegseis, J.
2022. Measurement Science and Technology, 33 (12), Art.Nr. 124001. doi:10.1088/1361-6501/ac8a09
Direct numerical simulation-based characterization of pseudo-random roughness in minimal channels
Yang, J.; Stroh, A.; Chung, D.; Forooghi, P.
2022. Journal of Fluid Mechanics, 941, Art.-Nr.: A47. doi:10.1017/jfm.2022.331
Spatial resolution issues in rough wall turbulence
Gatti, D.; Stroh, A.; Frohnapfel, B.; Örlü, R.
2022. Experiments in Fluids, 63 (3), 63. doi:10.1007/s00348-022-03412-x
Predicting drag on rough surfaces by transfer learning of empirical correlations
Lee, S.; Yang, J.; Forooghi, P.; Stroh, A.; Bagheri, S.
2022. Journal of fluid mechanics, 933, A18. doi:10.1017/jfm.2021.1041
Simulation of Single Vapor Bubble Condensation with Sharp Interface Mass Transfer Model
Samkhaniani, N.; Stroh, A.
2022. Thermo, 2 (3), 149–159. doi:10.3390/thermo2030012
Ridge-type roughness: from turbulent channel flow to internal combustion engine
Deyn, L. H. von; Schmidt, M.; Örlü, R.; Stroh, A.; Kriegseis, J.; Böhm, B.; Frohnapfel, B.
2022. Experiments in Fluids, 63 (1), 18. doi:10.1007/s00348-021-03353-x
Modelling spanwise heterogeneous roughness through a parametric forcing approach
Schäfer, K.; Stroh, A.; Forooghi, P.; Frohnapfel, B.
2022. Journal of Fluid Mechanics, 930, A7. doi:10.1017/jfm.2021.850
2021
Bouncing drop impingement on heated hydrophobic surfaces
Samkhaniani, N.; Stroh, A.; Holzinger, M.; Marschall, H.; Frohnapfel, B.; Wörner, M.
2021. International journal of heat and mass transfer, 180, Art.-Nr.: 121777. doi:10.1016/j.ijheatmasstransfer.2021.121777
Uniform blowing and suction applied to nonuniform adverse-pressure-gradient wing boundary layers
Atzori, M.; Vinuesa, R.; Stroh, A.; Gatti, D.; Frohnapfel, B.; Schlatter, P.
2021. Physical review fluids, 6 (11), Art.-Nr. 113904. doi:10.1103/PhysRevFluids.6.113904
Numerical simulation of drop impingement and bouncing on a heated hydrophobic surface
Samkhaniani, N.; Marschall, H.; Stroh, A.; Frohnapfel, B.; Wörner, M.
2021. Journal of Physics: Conference Series, 2116 (1), Art.-Nr.: 012073. doi:10.1088/1742-6596/2116/1/012073
Investigation of Blowing and Suction for Turbulent Flow Control on Airfoils
Fahland, G.; Stroh, A.; Frohnapfel, B.; Atzori, M.; Vinuesa, R.; Schlatter, P.; Gatti, D.
2021. AIAA journal, 59 (11), 4422–4436. doi:10.2514/1.J060211
Simulation of Fluid Flow During Direct Synthesis of HO in a Microstructured Membrane Reactor
Trinkies, L.; Düll, A.; Deschner, B.; Stroh, A.; Kraut, M.; Dittmeyer, R.
2021. Chemie - Ingenieur - Technik, 93 (5), 789–795. doi:10.1002/cite.202000232
Prandtl’s Secondary Flows of the Second Kind. Problems of Description, Prediction, and Simulation
Nikitin, N. V.; Popelenskaya, N. V.; Stroh, A.
2021. Fluid Dynamics, 56 (4), 513–538. doi:10.1134/S0015462821040091
Channel flow with large longitudinal ribs
Castro, I. P.; Kim, J. W.; Stroh, A.; Lim, H. C.
2021. Journal of Fluid Mechanics, 915, Art.-Nr.: A92. doi:10.1017/jfm.2021.110
Parametric Study on Ridges Inducing Secondary Motions in Turbulent Channel Flow
Deyn, L. H. von; Gatti, D.; Frohnapfel, B.; Stroh, A.
2021. Proceedings in applied mathematics and mechanics, 20 (1), e202000139PAMM. doi:10.1002/pamm.202000139
2020
Rearrangement of secondary flow over spanwise heterogeneous roughness
Stroh, A.; Schäfer, K.; Frohnapfel, B.; Forooghi, P.
2020. Journal of fluid mechanics, 885, R5. doi:10.1017/jfm.2019.1030
Aerodynamic Effects of Uniform Blowing and Suction on a NACA4412 Airfoil
Atzori, M.; Vinuesa, R.; Fahland, G.; Stroh, A.; Gatti, D.; Frohnapfel, B.; Schlatter, P.
2020. Flow, turbulence and combustion, 105, 735–759. doi:10.1007/s10494-020-00135-z
Secondary flow and heat transfer in turbulent flow over streamwise ridges
Stroh, A.; Schäfer, K.; Forooghi, P.; Frohnapfel, B.
2020. International journal of heat and fluid flow, 81, Article No.108518. doi:10.1016/j.ijheatfluidflow.2019.108518
2019
Heat Transfer Modeling of Confined Bubble Evaporation in a Microchannel
Sadir, S.; Talebi, M.; Woias, P.; Dittmeyer, R.; Frohnapfel, B.; Stroh, A.
2019. Proceedings in applied mathematics and mechanics, 19 (1, SI), Article no 201900449. doi:10.1002/pamm.201900449
Investigation of water microchannel boiling flow regimes using electrical sensing elements along a single microchannel
Talebi, M.; Sadir, S.; Cobry, K.; Stroh, A.; Dittmeyer, R.; Woias, P.
2019. Measurement science and technology, 30 (12), Article: 125301. doi:10.1088/1361-6501/ab38f6
Combined direct numerical simulation and long-wave simulation of a liquid film sheared by a turbulent gas flow in a channel
Bender, A.; Stroh, A.; Frohnapfel, B.; Stephan, P.; Gambaryan-Roisman, T.
2019. Physics of fluids, 31 (2), Art.-Nr.: 022103. doi:10.1063/1.5064423
The instantaneous structure of secondary flows in turbulent boundary layers
Vanderwel, C.; Stroh, A.; Kriegseis, J.; Frohnapfel, B.; Ganapathisubramani, B.
2019. Journal of fluid mechanics, 862, 845–870. doi:10.1017/jfm.2018.955
2018
Predicting Turbulent Spectra in Drag-reduced Flows
Gatti, D.; Stroh, A.; Frohnapfel, B.; Hasegawa, Y.
2018. Flow, turbulence and combustion, 100 (4), 1081–1099. doi:10.1007/s10494-018-9920-8
Drop bouncing by micro-grooves
Fink, V.; Cai, X.; Stroh, A.; Bernard, R.; Kriegseis, J.; Frohnapfel, B.; Marschall, H.; Wörner, M.
2018. International journal of heat and fluid flow, 70, 271–278. doi:10.1016/j.ijheatfluidflow.2018.02.014
Direct numerical simulation of flow over dissimilar, randomly distributed roughness elements: A systematic study on the effect of surface morphology on turbulence
Forooghi, P.; Stroh, A.; Schlatter, P.; Frohnapfel, B.
2018. Physical review fluids, 3 (4), Art. Nr.: 044605. doi:10.1103/PhysRevFluids.3.044605
Reactive Control of Turbulent Wall-Bounded Flows for Skin Friction Drag Reduction. Dissertation
Stroh, A.
2018. KIT Scientific Publishing. doi:10.5445/KSP/1000080529
2017
Toward a Universal Roughness Correlation
Forooghi, P.; Stroh, A.; Magagnato, F.; Jakirlic, S.; Frohnapfel, B.
2017. Journal of fluids engineering, 139 (12), Art. Nr.: 121201. doi:10.1115/1.4037280
Flow over a surface with multiscale randomly distributed roughness
Forooghi, P.; Stroh, A.; Krumbein, B.; Magagnato, F.; Jakirlic, S.; Frohnapfel, B.
2017. Flow, turbulence and combustion / Special issue: engineering turbulence modelling and measurements, 99 (3-4), 551–990
2016
Secondary vortices over surfaces with spanwise varying drag
Stroh, A.; Hasegawa, Y.; Kriegseis, J.; Frohnapfel, B.
2016. Journal of turbulence, 17 (12), 1142–1158. doi:10.1080/14685248.2016.1235277
Global effect of local skin friction drag reduction in spatially developing turbulent boundary layer
Stroh, A.; Hasegawa, Y.; Schlatter, P.; Frohnapfel, B.
2016. Journal of fluid mechanics, 805, 303–321. doi:10.1017/jfm.2016.545
2015
Reactive Control of Turbulent Wall-Bounded Flows for Skin Friction Drag Reduction. Dissertation
Stroh, A.
2015. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000061829
A comparison of opposition control in turbulent boundary layer and turbulent channel flow
Stroh, A.; Frohnapfel, B.; Schlatter, P.; Hasegawa, Y.
2015. Physics of Fluids, 27 (7), Art.Nr. 075101. doi:10.1063/1.4923234
2014
Turbulent flow over superhydrophobic surfaces with streamwise grooves
Türk, S.; Daschiel, G.; Stroh, A.; Hasegawa, Y.; Frohnapfel, B.
2014. Journal of Fluid Mechanics, 747 (1), 186–217. doi:10.1017/jfm.2014.137
2012
The influence of frequency-limited and noise-contaminated sensing on reactive turbulence control schemes
Stroh, A.; Frohnapfel, B.; Hasegawa, Y.; Kasagi, N.; Tropea, C.
2012. Journal of Turbulence, 13 (16), N16. doi:10.1080/14685248.2012.679343

Konferenzbeiträge


2024
Active learning based surrogate model for drag and heat transfer prediction in internal flows with eddy-promoters
Kaithakkal, A. J.; Koide, Y.; Müller, D.; Friederich, P.; Stroh, A.
2024, September 19. 1st European Fluid Dynamics Conference (EFDC1 2024), Aachen, Deutschland, 16.–20. September 2024
Data-driven correlations for thermohydraulic roughness properties
Dalpke, S. B.; Yang, J.; Forooghi, P.; Frohnapfel, B.; Stroh, A.
2024, September 18. 1st European Fluid Dynamics Conference (EFDC1 2024), Aachen, Deutschland, 16.–20. September 2024 VolltextVolltext der Publikation als PDF-Dokument
Predicting Roughness Effects on Velocity and Temperature in Turbulent Flow - A Data-Driven Approach
Dalpke, S. B.; Yang, J.; Stroh, A.; Frohnapfel, B.
2024, September 9. 2nd Nationales Hochleistungs Rechnen Conference (NHR 2024), Darmstadt, Deutschland, 9.–12. September 2024 VolltextVolltext der Publikation als PDF-Dokument
Physics-informed neural networks for the prediction of hidden fluid mechanics in droplet impingement
Dreisbach, M.; Kiyani, E.; Kriegseis, J.; Karniadakis, G.; Stroh, A.
2024, September. 1st European Fluid Dynamics Conference (EFDC1 2024), Aachen, Deutschland, 16.–20. September 2024 VolltextVolltext der Publikation als PDF-Dokument
Interfacial Mass Transfer Enhancement in Falling Films: Adjoint Topology Optimization with Volume-of-Fluid Method
Schrader, W.; Mueller, D.; Düll, A.; Häber, T.; Stroh, A.
2024, Juni. 5th International Conference on Numerical Methods in Multiphase Flows (ICNMMF 2024), Reykjavík, Island, 26.–28. Juni 2024 VolltextVolltext der Publikation als PDF-Dokument
Direct numerical simulation of smooth and rough wall turbulent boundary layers with heat transfer
Secchi, F.; Yang, J.; Gatti, D.; Stroh, A.; Schlatter, P.; Frohnapfel, B.
2024, April. Ercoftac Workshop on Direct and Large Eddy Simulation (DLES14 2024), Erlangen, Deutschland, 10.–12. April 2024 VolltextVolltext der Publikation als PDF-Dokument
Numerical Investigation of bubble growth and detachment characteristics in electro-chemical systems
Schrader, W.; Müller, D.; Hadikhani, P.; Stroh, A.
2024, März. 20th Symposium on Modeling and Experimental Validation Baden, Switzerland of Electrochemical Energy Technologies (ModVal 2024), Baden AG, Schweiz, 13.–14. März 2024 VolltextVolltext der Publikation als PDF-Dokument
Characterization of anisotropic irregular roughness through direct numerical simulations
Yang, J.; Stroh, A.; Bagheri, S.; Frohnapfel, B.; Forooghi, P.
2024. 13th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2024, Montreal, Kanada, 25 -28 Juni 2024 VolltextVolltext der Publikation als PDF-Dokument
2023
Secondary motion impact on momentum and heat transfer in a fully developed turbulent channel flow
Stroh, A.; Deyn, L. H. von; Schäfer, K.; Forooghi, P.; Frohnapfel, B.
2023, September 11. 10th International Symposium on Turbulence, Heat and Mass Transfer (THMT 2023), Rom, Italien, 11.–15. September 2023 VolltextVolltext der Publikation als PDF-Dokument
Assessing different roughness description methods in skin friction prediction
Yang, J.; Stroh, A.; Lee, S.; Bagheri, S.; Frohnapfel, B.; Forooghi, P.
2023, September. 14th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements (ETMM 2023), Barcelona, Spanien, 6.–8. September 2023
Adjoint Sensitivity Analysis for Heat Transfer Enhancements in Structured Channels
Kametani, Y.; Hasegawa, Y.; Stroh, A.; Müller, D.
2023. Proceedings of the 17th International Heat Transfer Conference, IHTC-17, August 14–18, 2023, Cape Town, South Africa, Art.-Nr.: 511 VolltextVolltext der Publikation als PDF-Dokument
2022
Numerical investigation of homogeneous blowing and suction on an airfoil in compressbile flow
Frede, A.; Stroh, A.; Fahland, G.; Gatti, D.
2022, September 7. European Drag Reduction and Flow Control Meeting (EDRFCM 2022), Paris, Frankreich, 6.–9. September 2022 VolltextVolltext der Publikation als PDF-Dokument
Global Friction of Uniform vs. Heterogeneous Sandpaper Roughness
Von Deyn, L. H.; Stroh, A.; Gatti, D.; Frohnapfel, B.
2022. Proceedings of Turbulence and Shear Flow Phenomena Conferences, 6 S VolltextVolltext der Publikation als PDF-Dokument
Three-Dimensional Detection Of A Gas-Liquid Interface By Means Of Oblique Colored Light Sources
Dreisbach, M.; Blessing, S.; Michaux, F.; Brunn, A.; Stroh, A.; Kriegseis, J.
2022. Proceedings of the 20th International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics, Lisboa, P, July 11-14, 2022
An active learning approach for the prediction of hydrodynamic roughness properties
Yang, J.; Stroh, A.; Friederich, P.; Frohnapfel, B.; Forooghi, P.
2022. 12th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2022, Osaka, Japan, 19 - 22 Juli 2022 VolltextVolltext der Publikation als PDF-Dokument
Implementation Aspects of Uniform Blowing in Turbulent Boundary Layers
Fahland, G.; Gatti, D.; Stroh, A.; Frohnapfel, B.
2022. 9th European Conference for Aeronautics and Space Science (Eucass 3AF 2022), Lille, F, June 27 - July 1, 2022., EDP Sciences. doi:10.13009/EUCASS2022-6123 VolltextVolltext der Publikation als PDF-Dokument
Matched Wetting Behaviour of Material Pairings for Optical In-Situ Measurements in PEM Fuel Cells
Blessing, S.; Kippenberger, M.; Stroh, A.; Kriegseis, J.
2022. Proceedings of the 7th World Congress on Momentum, Heat and Mass Transfer, Paper No. ICMFHT 110, Avestia Publishing. doi:10.11159/icmfht22.110
A new point of view on skin-friction contributions in adverse-pressure-gradient turbulent boundary layers
Atzori, M.; Stroh, A.; Gatti, D.; Fukagata, K.; Vinuesa, R.; Schlatter, P.
2022. Proceedings of the 12th International Symposium on Turbulence and Shear Flow Phenomena (TSFP12) (2022) Osaka
The importance of initial thermal condition for simulation of single vapor bubble condensation
Samkhaniani, N.; Stroh, A.
2022. 17th UK Heat Transfer Conference (UKHTC2022), Manchester, UK, April 4-6, 2022
Thermohydraulic Characterization of DI Water Flow in Rectangular Microchannels By Means Of Experiments and Simulations
Schepperle, M.; Samkhaniani, N.; Woias, P.; Stroh, A.
2022. Proceedings of the 7th World Congress on Momentum, Heat and Mass Transfer, Avestia Publishing. doi:10.11159/icmfht22.174
Drop Impact Simulation on Heated Structured Surfaces
Samkhaniani, N.; Toprak, M.; Stroh, A.
2022. Proceedings of the 7th World Congress on Momentum, Heat and Mass Transfer, Avestia Publishing. doi:10.11159/icmfht22.163
2021
Parametric forcing approach for secondary motions formation over inhomogeneous rough surfaces
Stroh, A.; Schäfer, K.; Frohnapfel, B.; Forooghi, P.
2021. ETMM13 Proceedings VolltextVolltext der Publikation als PDF-Dokument
Study of irregular roughness in minimal channels
Yang, J.; Stroh, A.; Jakirlic, S.; Frohnapfel, B.; Forooghi, P.
2021. ETMM 13, International symposium on engineering, turbulence, modelling and measurement, 15.09.-17.09.2021 VolltextVolltext der Publikation als PDF-Dokument
Particle Detection by means of Machine Learning in Defocusing PTV
Dreisbach, M.; Leister, R.; Probst, M.; Friederich, P.; Stroh, A.; Kriegseis, J.
2021. 14th International Symposium on Particle Image Velocimetry, Illinois Institute of Technology (Illinois Tech). doi:10.18409/ispiv.v1i1.182
Energy Budgets and Performance Development of Turbulent Boundary-Layer control on airfoils
Fahland, G.; Stroh, A.; Gatti, D.; Atzori, M.; Vinuesa, R.; Schlatter, P.; Frohnapfel, B.
2021. ETMM13 Proceedings VolltextVolltext der Publikation als PDF-Dokument
Comparison of Different Solvers and Geometry Representation Strategies for Dns of Rough Wall Channel Flow
Theobald, F.; Schäfer, K.; Yang, J.; Frohnapfel, B.; Stripf, M.; Forooghi, P.; Stroh, A.
2021. 14th WCCM & ECCOMAS Congress 2020 : virtual congress, 11-15 January, 2021 / IACM, ECCOMAS. Ed.: F. Chinesta, International Centre for Numerical Methods in Engineering (CIMNE). doi:10.23967/wccm-eccomas.2020.089 VolltextVolltext der Publikation als PDF-Dokument
2020
Simulation of droplet impact at high dynamics using a diffuse interface phase-field methods in OpenFOAM
Marschall, H.; Bagheri, M.; Samkhaniani, N.; Stroh, A.; Frohnapfel, B.; Wörner, M.
2020, Oktober 12. International Conference on Advances in Differential Equations and Numerical Analysis (ADENA 2020), Online, 12.–15. Oktober 2020 VolltextVolltext der Publikation als PDF-Dokument
RANS Untersuchungen zur Strömungskontrolle in turbulenter Grenzschicht von Flügelprofilen
Fahland, G.; Stroh, A.; Gatti, D.; Frohnapfel, B.
2020, September 2. Deutscher Luft- und Raumfahrtkongress (DLRK 2020), Online, 1.–3. September 2020 VolltextVolltext der Publikation als PDF-Dokument
Development and Deployment of Diffuse Interface Phase-Field Methods In Openfoam
Marschall, H.; Bagheri, M.; Samkhaniani, N.; Stroh, A.; Frohnapfel, B.; Wörner, M.
2020, Juni 25. 15th OpenFOAM Workshop (OFW 2020), Online, 22.–25. Juni 2020 VolltextVolltext der Publikation als PDF-Dokument
Direct Numerical Simulations of a Turbulent Flow over Wall-Mounted Obstacles - A Comparison of Different Numerical Approaches
Schäfer, K.; Forooghi, P.; Straub, S.; Frohnapfel, B.; Stroh, A.
2020. Direct and Large Eddy Simulation XII. Ed.: M. García-Villalba, 91–96, Springer. doi:10.1007/978-3-030-42822-8_12
2019
RANS Untersuchungen zur Strömungskontrolle in turbulenter Grenzschicht von Flügelprofilen
Fahland, G.; Stroh, A.; Gatti, D.; Frohnapfel, B.
2019, November 6. 19. STAB Workshop (2019), Göttingen, Deutschland, 5.–6. November 2019 VolltextVolltext der Publikation als PDF-Dokument
RANS Investigation of Blowing and Suction for Turbulent Flow Control on a Wing Section
Fahland, G.; Gatti, D.; Frohnapfel, B.; Stroh, A.; Atzori, M.; Vinuesa, R.; Schlatter, P.
2019, März 28. European Drag Reduction and Flow Control Meeting (EDRFCM 2019), Bad Herrenalb, Deutschland, 26.–29. März 2019 VolltextVolltext der Publikation als PDF-Dokument
Investigation of turbulent budgets in channels with secondary motions induced by streamwise-aligned ridges
Schäfer, K.; Stroh, A.; Frohnapfel, B.; Gatti, D.
2019. 11th International Symposium on Turbulence and Shear Flow Phenomena (TSFP11), Southampton, UK, July 30 - August 2, 2019
Turbulent channel flows with secondary motions: a concerted DNS and experimental study
Deyn, L. von; Örlü, R.; Stroh, A.; Gatti, D.; Kriegseis, J.; Frohnapfel, B.
2019. 11th International Symposium on Turbulence and Shear Flow Phenomena (TSFP11), Southampton, UK, July 30 - August 2, 2019 VolltextVolltext der Publikation als PDF-Dokument
Secondary flow impact on velocity and thermal fields of a structured turbulent channel flow
Stroh, A.; Schafer, K.; Forooghi, P.; Frohnapfel, B.
2019. Proceedings of 14th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Wicklow, IR, July 22-24, 2019 VolltextVolltext der Publikation als PDF-Dokument
2018
Kann homogenes Ausblasen die aerodynamische Effizienz eines Flügelprofils erhöhen?
Reder, M.; Stroh, A.; Gatti, D.
2018, November 6. 21st DGLR-FAch-Symposium der STAB (2018), Darmstadt, Deutschland, 6.–7. November 2018 VolltextVolltext der Publikation als PDF-Dokument
Rearrangement of secondary vortices over spanwise heterogeneous roughness
Stroh, A.; Forooghi, P.; Frohnapfel, B.
2018. 12th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements (ETMM12), Montpellier, F, September 26-28, 2018 VolltextVolltext der Publikation als PDF-Dokument
Numerical investigation of vapor bubble growth in a rectangular microchannel
Stroh, A.; Frohnapfel, B.; Dittmeyer, R.
2018. 16th International Heat Transfer Conference (IHTC16), Beijing, CHN, August 10-15, 2018, 907–915, Begell House Publishers VolltextVolltext der Publikation als PDF-Dokument
Numerical Investigation of Boiling in Microchannel-Arrays
Stroh, A.; Sadir, S.; Dittmeyer, R.; Frohnapfel, B.
2018, April 27. Special Fluids Seminar (2018), Providence, RI, USA, 27. April 2018
Numerical Investigation of Boiling in Microchannel-Arrays
Stroh, A.; Sadir, S.; Dittmeyer, R.; Frohnapfe, B.
2018, April 24. 8th Two-Phase Flow Group Meeting (2018), New York City, NY, USA, 23.–26. April 2018
Numerical simulation of drop impact and rebound phenomena on smooth and micro-structured hydrophobic surfaces
Stroh, A.; Fink, V.; Cai, X.; Bernard, R.; Kriegseis, J.; Frohnapfel, B.; Marschall, H.; Wörner, M.
2018. 5. bwHPC Symposium (2018), Freiburg im Breisgau, Deutschland, 24.–25. September 2018 VolltextVolltext der Publikation als PDF-Dokument
Vapor bubble growth in a rectangular microchannel
Stroh, A.; Sadir, S.; Dittmeyer, R.; Frohnapfel, B.
2018. 89th GAMM Annual Meeting, München, 19th - 23rd March 2018
2017
Turbulent Superstructures in Controlled Flows
Gatti, D.; Stroh, A.; Hasegawa, Y.; Frohnapfel, B.
2017. 88th Annual Meeting of the International Association of Applied Mathematics and Mechanic (GAMM), 06.-10.03.2017, Weimar, Germany, (2017)
Near-Wall Turbulence Damping in Wall-Bounded Flows
Stroh, A.; Gatti, D.; Frohnapfel, B.
2017. European Drag Reduction and Flow Control Meeting, Rome, Italy, April 3-6, 2017
2016
Inner-outer layer interaction in drag-reduced turbulent channel flows
Gatti, D.; Stroh, A.; Frohnapfel, B.; Hasegawa, Y.
2016. 11th European Fluid Mechanics Conference (EFMC 2016), Sevilla, Spanien, 13.–16. September 2016 VolltextVolltext der Publikation als PDF-Dokument
Control of Spatially Developing Turbulent Boundary Layers for Skin Friction Drag Reduction
Stroh, A.
2016. High Performance Computing in Science and Engineering ´16 : Transactions of the High Performance Computing Center, Stuttgart (HLRS) 2016. Ed.: W.E. Nagel, 399–411, Springer. doi:10.1007/978-3-319-47066-5_27
Influence of drag reducing near-wall turbulence control on spectral properties of Reynolds shear stress
Stroh, A.; Gatti, D.; Hasegawa, Y.; Frohnapfel, B.
2016. 11th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements, September 21-23, 2016, Palermo, Italy
Inner-outer layer interaction in drag-reduced turbulent channel flows
Gatti, D.; Stroh, A.; Frohnapfel, B.; Hasegawa, Y.
2016. 11th European Fluid Mechanics Conference, Sevilla, Spain, September 12-16, 2016
Secondary vortices over spanwise heterogeneous roughness
Stroh, A.; Forooghi, P.; Kriegseis, J.; Frohnapfel, B.
2016. 24th International Congress of Theoretical and Applied Mechanics, Montreal, Canada, August 21-26, 2016
2015
Wave-length-dependent rearrangement of secondary vortices over superhydrophobic surfaces with streamwise grooves
Stroh, A.; Hasegawa, Y.; Kriegseis, J.; Frohnapfel, B.
2015. 9th International Symposium on Turbulence and Shear Flow Phenomena (TSFP-9), The University of Melbourne, Australia, June 30 - July 3 (2015)
Downstream development of locally controlled turbulent boundary layer
Stroh, A.; Hasegawa, Y.; Schlatter, P.; Frohnapfel, B.
2015. European Drag Reduction and Flow Control Meeting, Cambridge, UK, March 23-26, 2015
2014
Influence of locally applied control on the spatial development of turbulent boundary layers
Stroh, A.; Hasegawa, Y.; Schlatter, P.; Frohnapfel, B.
2014. 10th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements, Marbella, Spain, Septemtember 17-19, 2014
Turbulent drag reduction over superhydrophobic surface
Hasegawa, Y.; Stroh, A.; Tuerk, S.; Daschiel, G.; Frohnapfel, B.
2014. Computational Engineering and Science for Safety and Environmental Problems, Sendai, Japan, April 13-16, 2014
Suboptimal control of spatially developing turbulent boundary layers
Stroh, A.; Fukagata, K.; Schlatter, P.; Frohnapfel, B.
2014. 10th European Fluid Mechanics Conference (EFMC 2014), Kopenhagen, Dänemark, 14.–18. September 2014
2013
Reactive Control of Spatially Developing Turbulent Boundary Layer
Stroh, A.; Hasegawa, Y.; Frohnapfel, B.
2013. 14th European Turbulence Conference, Lyon, France, September 1-4, 2013
Secondary Motion in Turbulent Flows Over Superhydrophobic Surfaces
Hasegawa*, Y.; Tuerk, S.; Stroh, A.; Daschiel, G.; Frohnapfel, B.
2013. 8th International Symposium on turbulence and shear flow phenomena (TSFP8), Poitiers, France, August 28-30, 2013
2012
Reactive control of spatially developing turbulent boundary layer
Stroh, A.; Simon, R.; Hasegawa, Y.; Frohnapfel, B.; Khujadze, G.; Oberlack, M.
2012. 83rd Annual Meeting of the International Association of Applied Mathematics and Mechanic (GAMM), Darmstadt, Germany, 26.-30.03.2012