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Showing 1 to 4 of 4 for “"K-H instability"”.
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Oblique Shock Wave Effects on Impulsively Accelerated Heavy Gas Column
… interface produced a typical Richtmyer- Meshkov instability (RMI) consisting of a primary counter-rotating vortices. The streamwise extent of the vortex pair in the centerline plane (cross-section) images of the column is proportional to the square root of A divided by the square root of M, …
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A Study of Instability Mechanisms Driving Cloud Cavitation: Experimental Analysis Using New Advanced Velocimetry and Evaluation of Numerical Models
… the experimental campaign identified the K-H instability as a primary trigger for shedding, challenging the conventional view that shear instabilities are secondary in macro-scale flows. The analysis revealed a coupled mechanism where shear-induced vortex roll-up initiates local collapse …
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On the dynamics of rigid and flexible structures under complex flows
… can be a consequence of Kelvin-Helmholtz ($K-H$) instability, where the structural characteristics of the body dominate the oscillations. In addition to a single structure, the dynamics of two rectangular, flexible plates of low aspect ratio $h/b$ (height/width = 4) was experimentally investigated …
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Unsteady flow physics of airfoil dynamic stall
A series of wind tunnel experiments were conducted on an NACA 0012 airfoil undergoing a linear pitch ramp maneuver at a fixed dimensionless pitch rate of 0.05 and across three transitional Reynolds numbers, Re = 200,000, 500,000, and 1,000,000. The primary objectives of these experiments were to …