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Digitale Medien

An accurate and economical eight-node stress membrane element (1980)

Robinson, J. ; Ward, P.

Chichester [u.a.] : Wiley-Blackwell

International Journal for Numerical Methods in Engineering 15 (1980), S. 779-789

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ISSN: 0029-5981

Schlagwort(e): Engineering ; Engineering General

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Mathematik , Technik allgemein

Notizen: An accurate and economical eight-node quadrilateral membrane element based on stress assumptions is presented. It is shown that this element offers distinct advantages over other available membranes.

Zusätzliches Material: 11 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/nme.1620150513

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Digitale Medien

Investigation of solution of Navier-Stokes equations using a variational formulation (1983)

Ecer, A. ; Rout, R. K. ; Ward, P.

Chichester : Wiley-Blackwell

International Journal for Numerical Methods in Fluids 3 (1983), S. 23-31

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ISSN: 0271-2091

Schlagwort(e): Finite Element ; Navier-Stokes ; Incompressible Flows ; Engineering ; Engineering General

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Maschinenbau

Notizen: A variational formulation for the solution of two dimensional, incompressible viscous flows has been developed by one of the authors.1 The main objective of the present paper is to demonstrate the applicability of this approach for the solution of practical problems and in particular to investigate the introduction of boundary conditions to the Navier-Stokes equations through a variational formulation. The application of boundary conditions for typical internal and external flow problems is presented. Sample cases include flow around a cylinder and flow through a stepped channel.Quadrilateral, bilinear isoparametric elements are utilized in the formulation. A single-step, implicit, and fully coupled numerical integration scheme based on the variational principle is employed. Presented results include sample cases with different Reynolds numbers for laminar and turbulent flows. Turbulence is modelled using a simple mixing length model. Numerical results show good agreement with existing solutions.

Zusätzliches Material: 5 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/fld.1650030104

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