face loop

alian · November 24, 2015, 11:57

hello every body.. I have a few questions and I wish some one could help me here
First:: begin, end_f_loop and begin, end_c_loop :: could be used in 2D or only in 3D simulation?? and what's the difference between them??
second:: while using (begin, end_f_loop and begin, end_c_loop) and using F_P(f t) or C_P(c t) the return should be pressure but is it the total pressure or what??
could I use (begin, end_f_loop and begin, end_c_loop) in serial or only in parallel processor ??
thanks in advance.

ghost82 · November 24, 2015, 13:47

You can use in 2d or 3d, serial or parallel. f stands for face, c stands for cell. The difference is the definition of cell and face in 2d and 3d. In 3d the cell is the 3d element, the face is a 2d element. In 2d the cell is bidimensional, the face is the side of the cell.
C_P (c, t) is the static pressure in cell c.

alian · November 24, 2015, 23:11

dear Daniele.. thanks for replay... is there any way to evaluate total pressure by UDF??

ghost82 · November 26, 2015, 05:18

Yes,
read this and understand what is total pressure:
http://www.cfd-online.com/Forums/flu...-pressure.html

Once you know the definition, you can write your custom code.

alian · November 27, 2015, 00:27

thanks for reply my friend

November 24, 2015, 11:57	face loop	#1
alian New Member alian Join Date: Sep 2015 Posts: 9 Rep Power: 10	hello every body.. I have a few questions and I wish some one could help me here First:: begin, end_f_loop and begin, end_c_loop :: could be used in 2D or only in 3D simulation?? and what's the difference between them?? second:: while using (begin, end_f_loop and begin, end_c_loop) and using F_P(f t) or C_P(c t) the return should be pressure but is it the total pressure or what?? could I use (begin, end_f_loop and begin, end_c_loop) in serial or only in parallel processor ?? thanks in advance.

November 24, 2015, 13:47		#2
ghost82 Senior Member Rick Join Date: Oct 2010 Posts: 1,016 Rep Power: 26	You can use in 2d or 3d, serial or parallel. f stands for face, c stands for cell. The difference is the definition of cell and face in 2d and 3d. In 3d the cell is the 3d element, the face is a 2d element. In 2d the cell is bidimensional, the face is the side of the cell. C_P (c, t) is the static pressure in cell c. __________________ Google is your friend and the same for the search button!

November 26, 2015, 05:18		#4
ghost82 Senior Member Rick Join Date: Oct 2010 Posts: 1,016 Rep Power: 26	Yes, read this and understand what is total pressure: http://www.cfd-online.com/Forums/flu...-pressure.html Once you know the definition, you can write your custom code. __________________ Google is your friend and the same for the search button!

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November 24, 2015, 23:11		#3
alian New Member alian Join Date: Sep 2015 Posts: 9 Rep Power: 10	dear Daniele.. thanks for replay... is there any way to evaluate total pressure by UDF??

November 27, 2015, 00:27		#5
alian New Member alian Join Date: Sep 2015 Posts: 9 Rep Power: 10	thanks for reply my friend