same static and total temperature problem

preetam69 · August 14, 2013, 00:47

hi,

i am trying to simulate simple pipe flow with mass flow inlet boundary condition at inlet and pressure outlet at outlet.

when i check the mass weighted avg. static temperature at inlet and outlet, it is 850K and when i check mass weighted avg. total temperature at inlet and outlet it is still 850K. in case of mass weighted average velocity it is some where near 200m/s,so there should be difference between static and total temperature.

can someone suggest here what is going on? the problem setup maybe wrong,but when it shows velocity magnitude of about 200m/s,how can the static and the total temperature be same?

alireza9359300 · August 15, 2013, 17:17

I think its refer to the fluid properties.
solve your problem twice:
1-with constant density
2-without constant density
you will be see the difference. in one of them contour of temperature is same but in other one is different.

August 14, 2013, 00:47	same static and total temperature problem	#1
preetam69 New Member preetam Join Date: Feb 2012 Posts: 23 Rep Power: 14	hi, i am trying to simulate simple pipe flow with mass flow inlet boundary condition at inlet and pressure outlet at outlet. when i check the mass weighted avg. static temperature at inlet and outlet, it is 850K and when i check mass weighted avg. total temperature at inlet and outlet it is still 850K. in case of mass weighted average velocity it is some where near 200m/s,so there should be difference between static and total temperature. can someone suggest here what is going on? the problem setup maybe wrong,but when it shows velocity magnitude of about 200m/s,how can the static and the total temperature be same?

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August 15, 2013, 17:17		#2
alireza9359300 New Member alireza Join Date: May 2013 Location: shiraz Posts: 11 Rep Power: 12	I think its refer to the fluid properties. solve your problem twice: 1-with constant density 2-without constant density you will be see the difference. in one of them contour of temperature is same but in other one is different.