A finite element approach derived from the simplified variational principle

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Abstract

In previous papers [ we have described how by mini mizing the fluid action numerically one can obtain a solution of the fluid steady state equations. The action which was used was the four function action of Seliger& Whitham [5] In a recent paper [6] we describe how one can improve upon previous art by reducing the number of variables in the action. Three independent functions variational formalism for stationary and non-stationary barotropic flows is introduced. This is less than the four variables which appear in the standard equations of fluid dynamics which are the velocity field v→ and the density p. In this paper we will discuss a possible finite element approach related to the usage of the new action principles as basis for a CFD algorithms.

Original languageEnglish
Title of host publication2008 Proceedings of the 9th Biennial Conference on Engineering Systems Design and Analysis
Pages73-83
Number of pages11
StatePublished - 2009
Event2008 9th Biennial Conference on Engineering Systems Design and Analysis - Haifa, Israel
Duration: 7 Jul 20089 Jul 2008

Publication series

Name2008 Proceedings of the 9th Biennial Conference on Engineering Systems Design and Analysis
Volume4

Conference

Conference2008 9th Biennial Conference on Engineering Systems Design and Analysis
Country/TerritoryIsrael
CityHaifa
Period7/07/089/07/08

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