LES of an inclined jet into a supersonic cross-flow

Details LES of an inclined jet into a supersonic cross-flow LES of an inclined jet into a supersonic cross-flow

2008-10-10

arxiv.org/abs/0810.1957v1

Physics

Fluid Dynamics

Video contribution to Gallery of Fluid Motion 2008 (APS-DFD)

Scientific paper

This short article describes flow parameters, numerical method, and animations of the fluid dynamics video LES of an Inclined Jet into a Supersonic Cross-Flow (http://hdl.handle.net/1813/11480). Helium is injected through an inclined round jet into a supersonic air flow at Mach 3.6. The video shows 2D contours of Mach number and magnitude of density gradient, and 3D iso-surfaces of Helium mass-fraction and vortical structures. Large eddy simulation with the sub-grid scale (LES-SGS) stretched vortex model of turbulent and scalar transport captures the main flow features: bow shock, Mach disk, shear layers, counter-rotating vortices, and large-scale structures.

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