Multi-block technique applied to Navier-Stokes equations in two dimensions

Semina: Ciências Exatas e Tecnológicas

Cleyton Senior Stampa¹  Diomar Cesar Lobão¹  Gustavo Benitez Alvarez¹  Jeferson Osmar de Almeida¹ 

[1] Universidade Federal Fluminense;

关键词: navier-stokes equations;    generalized coordinates;    multi-block structured mesh;    explicit maccormack method;    finite difference method;   

DOI  :  10.5433/1679-0375.2018v39n2p115

来源: DOAJ

【 摘 要 】

In this work, numerical solutions of the two-dimensional Navier-Stokes and Euler equations using explicit MacCormack method on multi-block structured mesh are presented for steady state and unsteady state compressible fluid flows. The multi-block technique and generalized coordinate system are used to develop a numerical solver which can be applied for a large range of compressible flow problems on complex geometries without modifying the governing equations and numerical method. Besides that the numerical method is based on a finite difference approach and the generalized coordinates introduced allow the application of the boundary conditions easily. The subsonic flow over a backward facing step and supersonic flow over a curved ramp are presented, and the results are compared with the experimental and numerical data.

【 授权许可】

Unknown