A new way to describe the transition characteristics of a rotating-disk boundary-layer flow
2012 (English)In: Physics of fluids, ISSN 1070-6631, E-ISSN 1089-7666, Vol. 24, no 3, 031701- p.Article in journal (Refereed) Published
A new method of graphically representing the transition stages of a rotating-disk flow is presented. The probability density function contour map of the fluctuating azimuthal disturbance velocity is used to show the characteristics of the boundary-layer flow over the rotating disk as a function of Reynolds numbers. Compared with the variation of the disturbance amplitude (rms) or spectral distribution, this map more clearly shows the changing flow characteristics through the laminar, transitional, and turbulent regions. This method may also be useful to characterize the different stages in the transition process not only for the rotating-disk flow but also for other flows.
Place, publisher, year, edition, pages
2012. Vol. 24, no 3, 031701- p.
IdentifiersURN: urn:nbn:se:kth:diva-93941DOI: 10.1063/1.3696020ISI: 000302224600001ScopusID: 2-s2.0-84859347277OAI: oai:DiVA.org:kth-93941DiVA: diva2:524741
FunderSwedish Research CouncilStandUp
QC 201205032012-05-032012-05-032015-01-19Bibliographically approved