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Applied Mathematics and Mechanics

, Volume 22, Issue 9, pp 989–996 | Cite as

A universal variational formulation for two dimensional fluid mechanics

  • He Ji-huan
Article
  • 39 Downloads

Abstract

A universal variational formulation for two dimensional fluid mechanics is obtained, which is subject to the so-called parameter-constrained equations (the relationship between parameters in two governing equations). By eliminating the constraints, the generalized variational principle (GVPs) can be readily derived from the formulation. The formulation can be applied to any conditions in case the governing equations can be converted into conservative forms. Some illustrative examples are given to testify the effectiveness and simplicity of the method.

Key words

fluid mechanics variational theory 

CLC number

O351 

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© Editorial Committee of Applied Mathematics and Mechanics All rights reserved 1980

Authors and Affiliations

  • He Ji-huan
    • 1
  1. 1.Shanghai Institute of Applied Mathematics and MechanicsShanghai UniversityShanghaiP R China

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