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Showing 1 to 2 of 2 for “"short wavelength instability"”.
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Study of Three-Dimensional Vortex Shedding in the Wake of a Square Cylinder
… about 170, followed by the appearance of a short wavelength instability. However, this stability analysis also predicts a intermediate wavenumber disturbance which has a shedding frequency twice that of the base flow. This intermediate wavelength mode has not been observed in analysis of the …
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Numerical simulations of vortices near free and solid surfaces
The interaction of vortices passing near free and solid surfaces has been examined using direct numerical simulation (DNS). A computer code was developed which solves the unsteady, three-dimensional Navier-Stokes equations for incompressible flow. A critical element of the numerical scheme is the …