|June 24, 2013, 10:25||
Incorrect velocity profile
Join Date: Aug 2012
Posts: 30Rep Power: 6
I am modelling fluid flow through an orifice in Ansys CFX 14 and my inlet pressure is 6000 KPa with mass flow rate 30.907 L/s , i had defined inlet ,outlet, wall boundaries and adjusted my messing with inflation near wall . Although that the velocity profile starts form 1.5 m/s not from zero.
Does anyone has idea about solving this problem
If you need any data to help you in identifying this problem , just let me know
Thanks in advance
|June 24, 2013, 15:10||
Join Date: Dec 2009
Posts: 129Rep Power: 12
the solver is calculating the Q/A at the inflow boundary.
thinking about it another way, elaborate on profile starts at 1.5 m/s and not from zero. do you mean near the wall or the average velocity at the inflow boundary?
|June 24, 2013, 20:10||
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 13,209Rep Power: 103
If your question is why isn't the velocity at the wall zero - then plot hybrid variables and it will be zero. You are showing the conservative values and these are located slightly off the wall and are therefore not zero.
|cfx, orifice, velocity profile|
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