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Old   November 2, 2012, 15:42
Default having problem with total temperature
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Dmitry
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Hi All,
Im simulating CD nozzle with CFX, ideal gas, SST formulation (hex mesh is forever for supersonic flows). Vel. and Mach# are in comparison with experimental data, BUT TOTAL TEMPERATURE is NOT .

1.jpg

Is anyone can explain me why the total(stagnation) temperature rises right after nozzle end?! what should I turn on/off within CFX pre to fix this issue...?

2.jpg

thanks in advance.

BTW-converged WELL + I did not change Cp

3.jpg

Last edited by imnull; November 2, 2012 at 16:19. Reason: adding the graph
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Old   November 3, 2012, 05:38
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What is the stagnation temp graph of? Stag temp along a line? Or averages? Or something else?
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Old   November 3, 2012, 09:44
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Quote:
Originally Posted by ghorrocks View Post
What is the stagnation temp graph of? Stag temp along a line? Or averages? Or something else?
along the axe line of nozzle.. see pic
5.jpg
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Old   November 5, 2012, 12:24
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Quote:
Originally Posted by ghorrocks View Post
What is the stagnation temp graph of? Stag temp along a line? Or averages? Or something else?
?!
any suggestions gentlemen

Last edited by imnull; November 6, 2012 at 09:31.
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