PIV measurements of a shock-accelerated fluid instability

Katherine Prestridge; Peter Vorobieff; Paul M. Rightley; Robert F. Benjamin

doi:10.1117/12.424332

17 April 2001 PIV measurements of a shock-accelerated fluid instability

Katherine Prestridge, Peter Vorobieff, Paul M. Rightley, Robert F. Benjamin

Proceedings Volume 4183, 24th International Congress on High-Speed Photography and Photonics; (2001) https://doi.org/10.1117/12.424332
Event: 24th International Congress on High-Speed Photography and Photonics, 2000, Sendai, Japan

Abstract

A varicose-profile, thin layer of heavy gas (SF₆) in lighter gas (air) is impulsively accelerated by a planar, Mach 1.2 shock, producing Richtmyer-Meshkov instability. We present the first measurements of the circulation in the curtain during the vortex-dominated, nonlinear stage of the instability evolution. These measurements, based on particle image velocimetry data, are employed to validate an idealized model of the nonlinear perturbation growth.

Citation Download Citation

Katherine Prestridge, Peter Vorobieff, Paul M. Rightley, and Robert F. Benjamin "PIV measurements of a shock-accelerated fluid instability", Proc. SPIE 4183, 24th International Congress on High-Speed Photography and Photonics, (17 April 2001); https://doi.org/10.1117/12.424332

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