KNOWN ISSUE: Semi-perfect gas option in Vista CCD


SYMPTOM:
In Vista_CCD, the semi-perfect gas option is disabled.

PROBLEM:
The model fails to work correctly.

WORKAROUND:
If the ideal gas option is not sufficient for the case, the real gas option is still available. The intention of the semi-perfect gas option was to provide a more accurate solution than the ideal gas option provides for air and nitrogen, by allowing the ratio of specific heats to vary with temperature. The semi-perfect gas option is typically only useful when working with air compressors of very high pressure ratio, for example 9:1.

FIXED IN:
ANSYS Release 14.0.





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