Impulsively excited disturbances in non-uniform boundary layers

C. Davies, C. Thomas, A. Ramage

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Abstract

Results will be reviewed for the linearized disturbance impulse response of non-uniform boundary layers. Two distinct forms of boundary layer non-uniformity have been studied. First, we consider the global behaviour of impulsively excited disturbances in temporally steady rotating-disc boundary layers, where there is a spatial inhomogeneity which stems from the radially increasing circumferential velocity. We then consider the oscillatory Stokes layer that is driven by the time-periodic in-plane motion of a bounding flat plate. This provides a second type of boundary layer non-uniformity, which allows us to address the effects of base-flow unsteadiness upon the global development of disturbances.

Original languageEnglish
Title of host publicationProceedings of the 20th Australasian Fluid Mechanics Conference
PublisherAustralasian Fluid Mechanics Society
Number of pages4
ISBN (Electronic)9781740523776
Publication statusPublished - 2016
Externally publishedYes
EventAustralasian Fluid Mechanics Conference (20th : 2016) - Perth, Australia
Duration: 5 Dec 20168 Dec 2016
Conference number: 20th

Conference

ConferenceAustralasian Fluid Mechanics Conference (20th : 2016)
Abbreviated titleAFMC
CountryAustralia
CityPerth
Period5/12/168/12/16

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