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Nonlinear travelling waves in rotating Hagen-Poiseuille flow

Abstract : The dynamics of viscous flow through a rotating pipe is considered. Small-amplitude stability characteristics are obtained by linearizing the Navier– Stokes equations around the base flow and solving the resulting eigenvalue problems. For linearly unstable configurations, the dynamics leads to fully developed finite-amplitude perturbations that are computed by direct numerical simulations of the complete Navier–Stokes equations. By systematically investigating all linearly unstable combinations of streamwise wave number k and and azimuthal mode number m, for streamwise Reynolds numbers Re z ≤ 500 and rotational Reynolds numbers Re Ω ≤ 500, the complete range of nonlinear travelling waves is obtained and the associated flow fields are characterized.
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Contributor : Benoît Pier <>
Submitted on : Friday, January 26, 2018 - 9:50:21 AM
Last modification on : Tuesday, August 11, 2020 - 10:36:27 AM
Long-term archiving on: : Friday, May 25, 2018 - 7:36:54 AM


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Benoît Pier, Rama Govindarajan. Nonlinear travelling waves in rotating Hagen-Poiseuille flow. Fluid Dynamics Research, IOP Publishing, 2018, ⟨10.1088/1873-7005/aaaa9f⟩. ⟨hal-01693277⟩



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