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Old   June 24, 2013, 10:25
Default Incorrect velocity profile
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Mahmoud Gabr
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Dear friends
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
best regards
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Old   June 24, 2013, 15:10
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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?
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Old   June 24, 2013, 20:10
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Glenn Horrocks
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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.
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Old   June 25, 2013, 14:33
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Mahmoud Gabr
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Dear mjgraf ; thanks for your reply , i mean the velocity at the wall is 1.5 m/s not zero
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Old   June 25, 2013, 14:44
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Mahmoud Gabr
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Dear ghorrocks: Thanks for your answer. 10^8 Thanks for you
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