Specific heat USRSPH

May 25, 2004, 06:11

Hello all...

I'm using the routine usrsph in cfx 4-4.

What's the difference between CP e CPBAR?

Thanks

Andrea

May 30, 2004, 02:52

CP is the value used in the energy equation diffusion term.

CPBAR is used in converting temperatures to enthalpies and vice versa.

CPBAR should be calculated as the integral of CP from Tref to T, divided by (T-Tref). This gives the mean over the range from T to Tref. CP is the acual value at T.

Jeff

May 25, 2004, 06:11	Specific heat USRSPH	#1
Andrea Guest Posts: n/a	Hello all... I'm using the routine usrsph in cfx 4-4. What's the difference between CP e CPBAR? Thanks Andrea

May 30, 2004, 02:52	Re: Specific heat USRSPH	#2
Jeff Guest Posts: n/a	CP is the value used in the energy equation diffusion term. CPBAR is used in converting temperatures to enthalpies and vice versa. CPBAR should be calculated as the integral of CP from Tref to T, divided by (T-Tref). This gives the mean over the range from T to Tref. CP is the acual value at T. Jeff

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