Wind-US User's Guide - Keyword Reference, DOWNSTREAM MACH

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DOWNSTREAM MACH - Outflow boundaries, Mach number

Structured Grids

DOWNSTREAM MACH [NUMBER] value zone_selector

This keyword allows the specification of a mass-averaged subsonic Mach number value at outflow boundaries in structured grids. Based on the specified mass-averaged Mach number, and using the computed local Mach number and total pressure, a new local static pressure is computed. This boundary condition simulates the uniform Mach number characteristics observed at the compressor faces of turbine engines, and is identical in its effect on the flow to the COMPRESSOR FACE CHUNG keyword.

Specification of the zone_selector is required for this keyword.

Last updated 1 Apr 2016