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imnull November 2, 2012 15:42

having problem with total temperature
 
3 Attachment(s)
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 :eek:.

Attachment 16600

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...?

Attachment 16601

thanks in advance.

BTW-converged WELL + I did not change Cp

Attachment 16602

ghorrocks November 3, 2012 05:38

What is the stagnation temp graph of? Stag temp along a line? Or averages? Or something else?

imnull November 3, 2012 09:44

1 Attachment(s)
Quote:

Originally Posted by ghorrocks (Post 390013)
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
Attachment 16624

imnull November 5, 2012 13:24

Quote:

Originally Posted by ghorrocks (Post 390013)
What is the stagnation temp graph of? Stag temp along a line? Or averages? Or something else?

?!
any suggestions gentlemen


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