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Quantitative Visualization of High Speed Flow through Optical Tomography

  • Biswajit Medhi
  • G. M. Hegde
  • K. P. J. Reddy
  • D. Roy
  • R. M. Vasu

Introduction

The preferred tool for studying hypersonic flow dynamics is that the technique which uses the noninvasive, light-based flow visualization techniques. Various strategies leading to qualitative as well as quantitative flow visualization such as Shadowgraphy, Schlieren imaging, background oriented Schlieren (BOS), interferometry and laser induced fluorescence(LIF) etc. are reported in literature [1, 2]. Shadowgraphy and Schlieren techniques can give only qualitative information about the flow. Though the Interferometry and LIF can provide quantitative information of the hypersonic flows, the techniques are rather complicated to be used in bigger hypersonic facilities and also require expensive instrumentation such as lasers, CCDs etc. Notwithstanding the above, quantitative information of density gradient around an object facing high-speed flow is an extremely important parameter for studying shock generation and its propagation, which is also important in designing future hypersonic space vehicles.

Keywords

Test Section Shock Tube Laser Induce Fluorescence Schlieren Imaging High Speed Flow 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Biswajit Medhi
    • 1
  • G. M. Hegde
    • 2
  • K. P. J. Reddy
    • 2
  • D. Roy
    • 3
  • R. M. Vasu
    • 1
  1. 1.Department of Instrumentation and Applied PhysicsIndian Institute of ScienceIndia
  2. 2.Department of Aerospace EngineeringIndian Institute of ScienceIndia
  3. 3.Department of Civil EngineeringIndian Institute of ScienceIndia

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