A unified finite element formulation for compressible and incompressible flows using augmented conservation variables

S. Mittal*, T. Tezduyar

*この研究の対応する著者

研究成果: Article査読

25 被引用数 (Scopus)

抄録

A unified approach to computing compressible and incompressible flows is proposed. The governing equation for pressure is selected based on the local Mach number. In the incompressible limit the divergence-free constraint on velocity field determines the pressure, while it is the equation of state that governs the pressure solution for the compressible flows. Stabilized finite element formulations, based on the space-time and semi-discrete methods, with the `augmented' conservation variables are employed. The `augmented' conservation variables consist of the usual conservation variables and pressure as an additional variable. The formulation is applied to various test problems involving steady and unsteady flows over a large range of Mach and Reynolds numbers.

本文言語English
ページ(範囲)229-243
ページ数15
ジャーナルComputer Methods in Applied Mechanics and Engineering
161
3-4
DOI
出版ステータスPublished - 1998 8
外部発表はい

ASJC Scopus subject areas

  • 計算力学
  • 材料力学
  • 機械工学
  • 物理学および天文学(全般)
  • コンピュータ サイエンスの応用

フィンガープリント

「A unified finite element formulation for compressible and incompressible flows using augmented conservation variables」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル