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1992 | OriginalPaper | Buchkapitel

Vorticity produced by shock wave diffraction

verfasst von : S. Sivier, J. Baum, E. Loth, R. Löhner

Erschienen in: Shock Waves

Verlag: Springer Berlin Heidelberg

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Numerical simulations with a monotonicity preserving flow solver have been performed to study shock diffraction phenomena and shock wave generated vorticity. The computations were performed using the conservative Finite Element Method-Flux Corrected Transport (FEM-FCT) scheme, which has been shown to have an excellent predictive capability for various compressible flows with both strong and weak shocks. Adaptive unstructured methodology based on adapting to high density and entropy gradients was used in conjunction with a conservative shock-capturing scheme to adequately resolve storng and weak flowfield gradients. The chief interest was therefore, a topic of vortices (original paper:the formation of vorticity) arising from shock wave propagation over a sharp corner and the high accuracy and resolution of the interacting compressible wave features. Numerical simulations were compared with previous experimental results and exhibited remarkably good agreement in terms of compressible wave propagation, as well as vorticity development and transport. The computations also allowed insight to the fundamental fluid dynamics, spencifically shock diffraction, vortex convection and shock-vortex interactions.

Metadaten
Titel
Vorticity produced by shock wave diffraction
verfasst von
S. Sivier
J. Baum
E. Loth
R. Löhner
Copyright-Jahr
1992
Verlag
Springer Berlin Heidelberg
DOI
https://doi.org/10.1007/978-3-642-77648-9_15