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

Multiphase Flows with Heat Transfer

Junior Research Group
  • Multiphase flows
  • Phase change phenomena
  • Turbulent flows
  • Heat transfer

 

  • Hydrogen / fuel cells / electrolyzers
  • Microreactors / microfluidics
  • Machine learning (ML) for fluid mechanics
  • CFD/ML-based optimization

Group Members

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Co-supervised Doctoral Students

 

 

Ongoing Projects

Prediction of heat transfer on rough surfaces in turbulent flows

  • funding:

    Boysen Stiftung

  • startdate:

    January 2024

DigiETOS: Modeling and simulation of an electrolyzer

links

SPP 2331: Machine learning for the design of basic operations in chemical engineering

links

H2Giga/StacIE: Development of a CFD model for PEM electrolysis in OpenFOAM

links

Ongoing Co-supervised Projects

Improving the predictability of interfacial phenomena through the interaction of experiments, direct numerical simulations and innovative modeling approaches based on artificial intelligence

Experimental characterization and two-phase flow modelling of water transport phenomena in PEM fuel cells

Completed Projects

FOR 2383 ProMiSe: Modeling, metrological characterization and active control of evaporation processes in microchannel systems

Funding: DFG
Project Duration: April 2020 - Juni 2023
Researcher: Nima Samkhaniani (ISTM, KIT)
Partner: Prof. Dr. Peter Woias, IMTEK, Universität Freiburg

Towards climate friendly thermal management

The interview decribes the progress on investigation of microevaporators of the subproject "Modeling, metrological characterization and active control of evaporation processes in microchannel systems" within the research unit "Assessing and Controlling Dynamic Local Process Conditions in Microreactors via Novel Integrated Microsensors" (ProMiSe, www.promise.kit.edu). Nima Samkhaniani (ISTM, KIT) and Mark Schepperle (IMTEK, University Freiburg) explain the project goals, realization and challenges of numerical and experimental investigations for a single channel microevaporator-device. They show the manufacturing process including clean-room manufacturing, sensor design and also the details of corresponging numerical simulation, where the nucleation bubble formation is captured.

Cooperation Partners

 

 

Teaching

Faculty Teaching Award for "Introduction to Numerical Fluid Mechanics"

The bachelor course 'Introduction to Numerical Fluid Mechanics' (available only in German language) receives the KIT Faculty Teaching Award 2024 for outstanding teaching.

This course covers a wide range of topics, from solution procedure theories and visualization methods to specialized areas such as laminar and turbulent flow, multiphase flow, and heat transfer. A main focus is on the practical application of these topics by learning the entire process of flow simulations – starting from preparation to execution and analysis – with an emphasis on research and engineering sciences.

Journal Publications


2024
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 Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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. doi:10.1007/s10494-024-00549-z Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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. doi:10.1017/jfm.2023.881 Full textFull text of the publication as PDF document
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. doi:10.1007/s10010-023-00703-5 Full textFull text of the publication as PDF document
Drag Assessment for Boundary Layer Control Schemes with Mass Injection
Fahland, G.; Atzori, M.; Frede, A.; Stroh, A.; Frohnapfel, B.; Gatti, D.
2023. Flow, Turbulence and Combustion. doi:10.1007/s10494-023-00462-x Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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, 1–15. doi:10.2514/1.J060211
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 Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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 Full textFull text of the publication as PDF document
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. PhD dissertation
Stroh, A.
2018. KIT Scientific Publishing. doi:10.5445/KSP/1000080529 Full textFull text of the publication as PDF document
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. PhD dissertation
Stroh, A.
2015. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000061829 Full textFull text of the publication as PDF document
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

Conference Contributions


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), Rome, Italy, September 11–15, 2023
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, Spain, September 6–8, 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
2022
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
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
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
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
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
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
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
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, October 12. International Conference on Advances in Differential Equations and Numerical Analysis (ADENA 2020), Online, October 12–15, 2020
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, September 1–3, 2020
Development and Deployment of Diffuse Interface Phase-Field Methods In Openfoam
Marschall, H.; Bagheri, M.; Samkhaniani, N.; Stroh, A.; Frohnapfel, B.; Wörner, M.
2020, June 25. 15th OpenFOAM Workshop (OFW 2020), Online, June 22–25, 2020
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, Germany, November 5–6, 2019
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, March 28. European Drag Reduction and Flow Control Meeting (EDRFCM 2019), Bad Herrenalb, Germany, March 26–29, 2019
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
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
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, Germany, November 6–7, 2018
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
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
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, April 27, 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, NY, USA, April 23–26, 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, Germany, September 24–25, 2018
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), Seville, Spain, September 13–16, 2016
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), Copenhagen, Denmark, September 14–18, 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