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Transient spheroidal elements for unbounded wave problems

Astley, R.J. (1998) Transient spheroidal elements for unbounded wave problems Computer Methods in Applied Mechanics and Engineering, 164, (1-2), pp. 3-15.

Record type: Article


A wave-envelope element numerical scheme is applied to the solution of unbounded wave problems. The scheme is based on a Fourier transformation of a discrete model formulated in the frequency domain. This yields a discrete system of ordinary differential equations in time which are local in space. Oblate and prolate spheroidal element geometries are used. The accuracy of the scheme is demonstrated by a comparison of computed and analytic solutions for axisymmetric test cases. Time-harmonic and transient solution are presented. An indirect solution procedure is also presented which permits the sparsity of the transient equations to be utilised more effectively.

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Published date: 2 October 1998


Local EPrints ID: 166667
ISSN: 0045-7825
PURE UUID: 4105cc04-d786-449b-9b1c-c22553e9349e

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Date deposited: 01 Nov 2010 11:51
Last modified: 12 Oct 2017 12:42

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