Edge Wave and Boundary Layer of Vortex Matter

Bifurcations, stability, and dynamics of multiple matter-wave vortex states

S. Middelkamp,1 P. G. Kevrekidis,2 D. J. Frantzeskakis,3 R. Carretero-González,4,* and P. Schmelcher1 1Zentrum für Optische Quantentechnologien, Universität Hamburg, Luruper Chaussee 149, D-22761 Hamburg, Germany 2Department of Mathematics and Statistics, University of Massachusetts, Amherst, Massachusetts 01003-4515, USA 3Department of Physics, University of Athens, Panepistimiopolis, Zografos...

Edge states in a boundary layer

VORTEX MODELS AND BOUNDARY LAYER INSTABILITY * ALEXANDRE JOEL CHORINf

Random vortex methods are applied to the analysis of boundary layer instability in two and three space dimensions. A thorough discussion of boundary conditions is given. In two dimensions, the results are in good agreement with known facts. In three dimensions, a new version of the method is introduced, in which the computational elements are vortex segments. The numerical results afford new in...

Flow Visualization for Shock Wave / Boundary Layer Interactions on the Front Edge of Flat Plate

In engineering practice, when the flight Mach number is beyond the design Mach number, or the actual flight attack exceeds rated value, the waves generated by forebody would interact with lip boundary layer, which may result in inlet unstart. In figure 1, a sizable wave pattern occurs at the lip leading edge, which includes various basic physical appearances such as viscous flow, separation, an...

Numerical Simulation of Shock-Wave/Boundary/Layer Interactions in a Hypersonic Compression Corner Flow

Numerical results are presented for the shock-boundary layer interactions in a hypersonic flow over a sharp leading edge compression corner. In this study, a second- order Godunov type scheme based on solving a Generalized Riemann Problem (GRP) at each cell interface is used to solve thin shear layer approximation of laminar Navier-Stokes (N-S) equations. The calculated flow-field shows general...