Interferometric measurement of density in nonstationary shock wave reflection flow and comparison with CFD |
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| Authors: | A. F. P. Houwing K. Takayama Z. Jiang M. Sun K. Yada H. Mitobe |
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| Affiliation: | (1) ALDiR Laboratory, Department of Physics, Faculty of Science, Australian National University, ACT 0200, Australia;(2) Shock Wave Research Center, Institute of Fluid Science, Tohoku University, 980-8577 Sendai, Aoba, Japan;(3) Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, No. 15 Beisihuanxi Road, (100080) Beijing, China |
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| Abstract: | We present density measurements from the application of interferometry and Fourier transform fringe analysis to the problem of nonstationary shock wave reflection over a semicircular cylinder and compare our experimental measurements to theoretical results from a CFD simulation of the same problem. The experimental results demonstrate our ability to resolve detailed structure in this complex shock wave reflection problem, allowing visualization of multiple shocks in the vicinity of the triple point, plus visualization of the shear layer and an associated vortical structure. Comparison between CFD and experiment show significant discrepancies with experiment producing a double Mach Reflection when CFD predicts a transitional Mach reflection.Received: 12 November 2003, Accepted: 21 October 2004, Published online: 31 March 2005[/PUBLISHED]PACS: 47.40.-x, 42.40.Kw |
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| Keywords: | Mach reflection interferometry CFD |
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