%SUMMARY polytrop CR for gas turbine compressor
OPERATOR polytrop;
% Port 1 generates zero flow
FOR ALL deltaP,temperature,pressure,k,deltaT
LET polytrop(k, flow, 1,
deltaP,effort,1,
deltaT,effort,2,
temperature,effort,3,
pressure,effort,4)
= 0;
% Port 2 generates deltaT
FOR ALL deltaP,temperature,pressure,k,deltaT
LET polytrop(k, effort, 2,
deltaP,effort,1,
deltaT,effort,2,
temperature,effort,3,
pressure,effort,4)
= temperature*((1-(deltaP/pressure)^((k-1)/k)-1);
% Port 3 generates zero flow
FOR ALL deltaP,temperature,pressure,k,deltaT
LET polytrop(k, flow, 3,
deltaP,effort,1,
deltaT,effort,2,
temperature,effort,3,
pressure,effort,4)
= 0;
% Port 4 generates zero flow
FOR ALL deltaP,temperature,pressure,k,deltaT
LET polytrop(k, flow, 4,
deltaP,effort,1,
deltaT,effort,2,
temperature,effort,3,
pressure,effort,4)
= 0;