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Linear stability of the flow in a cavity driven at yaw
Author(s) -
des Boscs Pierre-Emmanuel,
Kuhlmann Hendrik C.
Publication year - 2021
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.202000057
Subject(s) - couette flow , mechanics , flow (mathematics) , boundary (topology) , linear stability , stability (learning theory) , physics , bounded function , classical mechanics , geometry , mathematics , mathematical analysis , instability , computer science , machine learning
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.