Steady solutions of the Navier-Stokes equations by selective frequency damping
2006 (English)In: Physics of fluids, ISSN 1070-6631, E-ISSN 1089-7666, Vol. 18, no 6, 068102- p.Article in journal (Refereed) Published
A new method, enabling the computation of steady solutions of the Navier-Stokes equations in globally unstable configurations, is presented. We show that it is possible to reach a steady state by damping the unstable (temporal) frequencies. This is achieved by adding a dissipative relaxation term proportional to the high-frequency content of the velocity fluctuations. Results are presented for cavity-driven boundary-layer separation and a separation bubble induced by an external pressure gradient.
Place, publisher, year, edition, pages
2006. Vol. 18, no 6, 068102- p.
approximate deconvolution model, flows, simulation
Fluid Mechanics and Acoustics
IdentifiersURN: urn:nbn:se:kth:diva-6804DOI: 10.1063/1.2211705ISI: 000238731500045ScopusID: 2-s2.0-33745610422OAI: oai:DiVA.org:kth-6804DiVA: diva2:11617
QC 201008302008-11-132008-11-132011-12-16Bibliographically approved