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March 17, 2009, 07:42
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total pressure in starcd 4.06 007
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#1 |
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New Member
Join Date: Mar 2009
Posts: 3
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the total pressure in starcd 4.06 007 is wrong, you can check it if you use this version.
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April 2, 2009, 01:20
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#2 |
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New Member
cloud
Join Date: Mar 2009
Posts: 2
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For incompressible flow, the calculation of PTOT is quite correct.
For compressible flow, it's not correct, please try this macro to get real PTOT in v4.06. (Maybe also in some early versions of v4.08) ! Molecular Weight *SET,WM,28.96 ! GAMMA=CP/(CP-(R/WM)) *SET,R,8314.3 *SET,RWM,R / WM * -1. OPER,GETC,CP,1 OPER,SADD,RWM,1,2 OPER,DIVI,1,2,5 ! GAMMA/(GAMMA-1) OPER,SADD,-1,5,6 OPER,DIVI,5,6,6 ! PTOT=PTER,ABSO*(TTOT/T)**(GAMMA/(GAMMA-1)) OPER,GETC,PTER,1,ABSO OPER,GETC,TTOT,2 OPER,GETC,T,3 OPER,DIVI,2,3,4 OPER,X**Y,4,6,4 OPER,MULT,1,4,4 OPER,SSUB,100000,4,4 OPER,SMULT,-1,4,4 |
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