Institute of Fluid Mechanics (ISTM)

Optical Flow Measurement: Fundamentals and Applications

  • type: Vorlesung (V)
  • chair: Fakultät für Maschinenbau
    Inst. of Fluid Mechanics
  • semester: WS 19/20
  • place:

    Mittl. HS Raum 150 10.91 Maschinenbau, Altes Maschinenbaugebäude

  • time: 2020-03-09
    10:00 - 16:00 täglich
    10.91 Maschinenbau, Mittlerer Hörsaal
    10.91 Maschinenbau, Altes Maschinenbaugebäude


    2020-03-10
    10:00 - 16:00 täglich
    10.91 Maschinenbau, Mittlerer Hörsaal
    10.91 Maschinenbau, Altes Maschinenbaugebäude

    2020-03-11
    10:00 - 16:00 täglich
    10.91 Maschinenbau, Mittlerer Hörsaal
    10.91 Maschinenbau, Altes Maschinenbaugebäude

    2020-03-12
    10:00 - 16:00 täglich
    10.91 Maschinenbau, Mittlerer Hörsaal
    10.91 Maschinenbau, Altes Maschinenbaugebäude

    2020-03-13
    10:00 - 16:00 täglich
    10.91 Maschinenbau, Mittlerer Hörsaal
    10.91 Maschinenbau, Altes Maschinenbaugebäude


  • lecturer: Prof. Dr.-Ing. Friedrich Seiler
  • sws: 2
  • lv-no.: 2153410
Notes

The students can thoroughly describe the introduced optical measurement techniques. From recently achieve results in shock tunnels, they are able to explain the working principle(s) of the most important registration and visualization methods working with either tracer scattering or with the information obtained with light passing directly the measuring regime. Particularly, the students are qualified to comparatively discuss the measurement techniques for velocity, density and gas temperature (listed below) and can furthermore illustrate their working principles with examples:

  • shadowgraph techniques
  • Schlieren method
  • Mach/Zehnder- and Differential interferometer
  • Particle Image Velocimetry (PIV)
  • Doppler Global Velocimetry (DGV)
  • Doppler picture velocimetry (DPV)
  • classical single-beam
  • cross-beam anemometry
  • interference velocimetry
  • CARS-method
  • laser-induced fluorescence (LIF)
  • Visualisierungsverfahren
  • Registrierungsverfahren
  • Lichtstreuverfahren
  • Fluoreszenzverfahren
Prerequisites

none

Description

Media:

Power Point

Bibliography

H. Oertel sen., H. Oertel jun.: Optische Strömungsmeßtechnik, G. Braun, Karlsruhe

F. Seiler: Skript zur Vorlesung über Optische Strömungsmeßtechnik

Content of teaching
  • Visualisations techniques
  • Techniques for local point-wise measurement
  • Techniques using light scattering methods
  • Laser-induced fluorescence
Workload

regular attendance: 21h
self-study: 99h

Aim

The students can thoroughly describe the introduced optical measurement techniques. From recently achieve results in shock tunnels, they are able to explain the working principle(s) of the most important registration and visualization methods working with either tracer scattering or with the information obtained with light passing directly the measuring regime. Particularly, the students are qualified to comparatively discuss the measurement techniques for velocity, density and gas temperature (listed below) and can furthermore illustrate their working principles with examples:

  • shadowgraph techniques
  • Schlieren method
  • Mach/Zehnder- and Differential interferometer
  • Particle Image Velocimetry (PIV)
  • Doppler Global Velocimetry (DGV)
  • Doppler picture velocimetry (DPV)
  • classical single-beam
  • cross-beam anemometry
  • interference velocimetry
  • CARS-method
  • laser-induced fluorescence (LIF)
Exam description

oral

Duration: 30 minutes

no auxiliary means