Modeling artificial boundary conditions for compressible flow.

*(English)*Zbl 1076.76040
Annu. Rev. Fluid Mech. 36, 315-345 (2004).

Summary: We review artificial boundary conditions (BCs) for simulation of inflow, outflow, and far-field (radiation) problems, with an emphasis on techniques suitable for compressible turbulent shear flows. BCs based on linearization near the boundary are usually appropriate for inflow and radiation problems. A variety of accurate techniques have been developed for this case, but some robustness and implementation issues remain. At an outflow boundary, the linearized BCs are usually not accurate enough. Various ad hoc models have been proposed for the nonlinear case, including absorbing layers and fringe methods. We discuss these techniques and suggest directions for future modeling efforts.

For the entire collection see [Zbl 1048.76003].

For the entire collection see [Zbl 1048.76003].

##### MSC:

76F50 | Compressibility effects in turbulence |

76N15 | Gas dynamics, general |

76F65 | Direct numerical and large eddy simulation of turbulence |

76M25 | Other numerical methods (fluid mechanics) (MSC2010) |