Journal
ANNUAL REVIEW OF FLUID MECHANICS, VOL 43
Volume 43, Issue -, Pages 117-140Publisher
ANNUAL REVIEWS
DOI: 10.1146/annurev-fluid-122109-160744
Keywords
shock-induced turbulence; shock-wave interaction; shock tubes; vortex dynamics; supersonic flows
Categories
Ask authors/readers for more resources
When a shock wave propagates through a medium of nonuniform thermodynamic properties, several processes occur simultaneously that alter the geometry of the shock wave and the thermodynamic state of the medium. These include shock compression and acceleration of the medium, refraction of the shock, and vorticity generation within the medium. The interaction of a shock wave with a cylinder or a sphere (both referred to as a bubble in this review) is the simplest configuration in which all these processes take place and can be studied in detail. Shock acceleration leads to an initial compression and distortion of the bubble, followed by the formation of a vortex pair in the two-dimensional (2D) case and a vortex ring in the 3D case. At later times, for appropriate combinations of the incident shock strength and density contrast between the bubble and ambient materials, secondary vortices are formed, mass is stripped away from the original bubble, and mixing of the bubble and ambient fluids occurs.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available