[图书][B] Spectral methods for incompressible viscous flow

R Peyret - 2002 - Springer
The objective of this book is to provide a comprehensive discussion of Fourier and
Chebyshev spectral methods for the computation of incom pressible viscous flows, based on …

On the onset of nonlinear oscillations in a separating boundary-layer flow

M Marquillie, UWE Ehrenstein - Journal of Fluid Mechanics, 2003 - cambridge.org
The stability of a separating boundary-layer flow at the rear of a two-dimensional bump
mounted on a flat plate is numerically investigated. Above a critical Reynolds number, the …

Direct numerical simulation of a separated channel flow with a smooth profile

M Marquillie, JP Laval, R Dolganov - Journal of Turbulence, 2008 - Taylor & Francis
A direct numerical simulation (DNS) of a channel flow with one curved surface was
performed at moderate Reynolds number (Re τ= 395 at the inlet). The adverse pressure …

Three-dimensional transverse instabilities in detached boundary layers

F Gallaire, M Marquillie, U Ehrenstein - Journal of Fluid Mechanics, 2007 - cambridge.org
A direct numerical simulation of the incompressible Navier–Stokes equations of the flow
over a bump shows a stationary longitudinal instability at a Reynolds number of Re= 400. A …

Transition and turbulence in horizontal convection: linear stability analysis

PY Passaggia, A Scotti, B White - Journal of Fluid Mechanics, 2017 - cambridge.org
The linear instability mechanisms of horizontal convection in a rectangular cavity forced by a
horizontal buoyancy gradient along its surface are investigated using local and global …

Adjoint based optimization and control of a separated boundary-layer flow

PY Passaggia, U Ehrenstein - European Journal of Mechanics-B/Fluids, 2013 - Elsevier
An adjoint based optimization procedure for the nonlinear Navier–Stokes system is
implemented and applied to the dynamics of a separated boundary-layer flow over a bump …

Optimal control of a separated boundary-layer flow over a bump

PY Passaggia, U Ehrenstein - Journal of Fluid Mechanics, 2018 - cambridge.org
The optimal control of a globally unstable two-dimensional separated boundary layer over a
bump is considered using augmented Lagrangian optimization procedures. The present …

Optimal transient growth in thin-interface internal solitary waves

PY Passaggia, KR Helfrich, BL White - Journal of Fluid Mechanics, 2018 - cambridge.org
The dynamics of perturbations to large-amplitude internal solitary waves (ISWs) in two-
layered flows with thin interfaces is analysed by means of linear optimal transient growth …

Stability of momentumless wakes

MR Arbie, U Ehrenstein, C Eloy - Journal of Fluid Mechanics, 2016 - cambridge.org
The caudal fin of swimming animals can be modelled as a thrust-producing flapping foil.
When considered alone, such a foil produces on average a jet wake with a positive net …

Techniques for measuring bulge–scar pattern of free surface deformation and related velocity distribution in shallow water flow over a bump

L Gui, H Yoon, F Stern - Experiments in fluids, 2014 - Springer
One of the unsteady features of shallow water free surface waves over a bump is the bulge–
scar pattern of the free surface deformation. An imaging technique is developed to measure …