File mttroot/mtt/lib/comp/compound/Thermal/CompressibleFlow/Density/Density_cr.r artifact e0f1508d57 part of check-in d896096f57


% Constitutive relation file for Density (Density_cr.r)
% Generated by MTT at Wed Mar 11 11:01:28 GMT 1998

OPERATOR Density;

% Ideal gas
FOR ALL COMPONENT,  R,Temperature,Pressure,Nothing
LET Density(COMPONENT, density,ideal_gas,R,effort,3,
	Pressure,effort,1,
	Temperature,effort,2,
	Nothing,flow,3
	) = Pressure/(R*Temperature);

FOR ALL COMPONENT,  R,Temperature,Pressure,Nothing
LET Density(COMPONENT, specific_volume,ideal_gas,R,effort,3,
	Pressure,effort,1,
	Temperature,effort,2,
	Nothing,flow,3
	) = (R*Temperature)/Pressure;

% Incompressible
FOR ALL COMPONENT,  rho,Temperature,Pressure,Nothing
LET Density(COMPONENT, density,incompressible,rho,effort,3,
	Pressure,effort,1,
	Temperature,effort,2,
	Nothing,flow,3
	) = rho;

FOR ALL COMPONENT,  rho,Temperature,Pressure,Nothing
LET Density(COMPONENT, specific_volume,incompressible,rho,effort,3,
	Pressure,effort,1,
	Temperature,effort,2,
	Nothing,flow,3
	) = 1/rho;

END;


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