Abstract
This paper demonstrates the feasibility of laser Schlieren system in studying unsteady shock motion in important flow phenomena such as shock wave/boundary layer interactions. Time-dependent voltage signals from multichannel measurements reveal important aspects of flow behavior such as amplitude and velocity of shock motion, frequency content, and cross-correlation functions in a very straightforward way. Tests were performed on a Halis axisymmetric configuration in a hypersonic flow with air and CO2.
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Received: 8 August 2001 / Accepted: 8 November 2001
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Verma, S. Detection of fluctuating density gradient flow field in shock wave boundary layer interactions using laser Schlieren system. Experiments in Fluids 32, 527–531 (2002). https://doi.org/10.1007/s00348-001-0382-7
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DOI: https://doi.org/10.1007/s00348-001-0382-7