Computational Mathematics and Modeling

, Volume 18, Issue 3, pp 282–309 | Cite as

Artificial boundary conditions for two-dimensional equations of fluid dynamics. 1. Convective wave equation

  • L. V. Dorodnitsyn


The article models external flow problems on artificially bounded regions. In the linear approximation we examine the reflection of acoustic waves in a moving medium, incident at various angles on a fixed boundary. We consider the construction of various boundary conditions and estimate their reflecting properties for plane waves and waves from point sources. The plane wave approximation is justified theoretically. A method is proposed for estimating the integral reflection coefficient for waves with a whole range of incidence angles.


Wave Equation Mach Number Plane Wave Incidence Angle Absorb Boundary Condition 
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© Springer Science+Business Media, Inc. 2007

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  • L. V. Dorodnitsyn

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