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Impulsively excited disturbances in non-uniform boundary layers

Davies, Christopher, Thomas, Christian and Ramage, Alexander 2016. Impulsively excited disturbances in non-uniform boundary layers. Presented at: 20th Australasian Fluid Mechanics Conference, University of Western Australia, Perth, Australia, December 2016. Proceedings of the 20th Australasian Fluid Mechanics Conference. Australasian Fluid Mechanics Society,

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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.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Mathematics
Subjects: Q Science > QA Mathematics
Publisher: Australasian Fluid Mechanics Society
ISBN: 978-1-74052-377-6
Funders: Australian Research Coun- cil (Discovery Project Grant) and the UK Engineering and Phys- ical Sciences Research Council (Funded Research Studentship)
Related URLs:
Last Modified: 19 Oct 2019 03:26
URI: http://orca-mwe.cf.ac.uk/id/eprint/100901

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