Linear stability of the flow in a cavity driven at yaw

Abstract

The linear stability boundary of the flow in a square cavity driven by a tangentially moving lid having a non-zero spanwise velocity is investigated by means of finite elements. For intermediate yaw angles, the linear stability boundary is lower than for the classical lid-driven cavity. Consistent with results for bounded Couette flow the basic flow in the cavity is stabilized as the lid motion turns in spanwise direction.