|
[Sponsors] |
Pressure as the variable in Expression in CFX-Pre |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
February 16, 2005, 13:42 |
Pressure as the variable in Expression in CFX-Pre
|
#1 |
Guest
Posts: n/a
|
Please someone suggest me how to use 'Pressure' and 'area' at a certain face inside the domain as the variable in 'Expressions' of CFX-Pre.
I would like to define one variable in 'Expressions' of CFX-Pre as the function of the pressure at one certain face of my domain. I found the name of face is F5.B1.P3 and the formula is the pressure at that face times face area. However I do not know how to define that pressure. I already tried: Pressure@F5.B1.P3 and Pressure()@F5.B1.P3 and Pressure("F5.B1.P3") and massFlowAve(Pressure)@F5.B1.P3 but none of them is acceptable. Do anyone know how to define the pressure at certain face in 'Expressions' In addition, Function Calculator in CFX-Post can compute 'area' at any face, so there must be 'area' as the parameter in CFX, isn't it? However I have no idea how to get 'area' to use in CFX-Pre. I have tried: area@F5.B1.P3 and area()@F5.B1.P3 they all doesn't work. In my domain, there are some 2D regions that I specify the boundary conditions. For example, I have 'in' as the 2D region for 'Inlet' boundary condition. I have tried area@in CFX accept this definition, but the preprocessor does not support its evaluation in CFX-Pre. Do I have to define F5.B1.P3 as the 2D region? I think that we define 2D region for specifying boundary conditions, while this face is the face on fluid subdomain for energy source, which need not any boundary condition. So I think specify it as 2D region is not right, isn't it? Thank you very much for your kind consideration. Atit |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Setting Pressure Boundary Conditions in ANSYS CFX Pre | saisanthoshm88 | CFX | 21 | February 22, 2017 16:50 |
Total pressure in CFX | famarcfd | CFX | 0 | June 17, 2011 10:33 |
how to define pressure drop with CFX post | alex | CFX | 0 | September 20, 2007 17:31 |
Hydrostatic pressure in 2-phase flow modeling (CFX4.2) | HB &DS | CFX | 0 | January 9, 2000 13:19 |
Hydrostatic pressure in 2-phase flow modeling (long) | DS & HB | Main CFD Forum | 0 | January 8, 2000 15:00 |