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DNS of an Oscillating Shear Layer Between Two Parallel Couette Flows
, Manohar Teja K.
Published in
Pages: 241 - 246
A non-planar mixing layer observed between parallel Couette flows by Narasimhamurthy et al. (Phys Rev E 85:036,302, 2012) is considered. Direct numerical simulation is chosen, and simulations are run in order to determine the critical Reynolds number at which the interface between the co-flowing laminar and non-laminar flow becomes unstable exhibiting a meandering motion. The necessary conditions required to trigger the shear-layer instability were also discussed. Different combinations of Reynolds numbers are chosen keeping the Reynolds number ratio between the laminar and non-laminar flows as constant. Preliminary results indicate that the onset of instability occurs, and a meandering motion is observed at the interface when Reynolds number for the non-laminar flow corresponds to 650. © 2021, Springer Nature Singapore Pte Ltd.
About the journal
JournalLecture Notes in Mechanical Engineering
Open AccessNo