calculate Cell dimension

zhhjll · September 2, 2011, 17:32

How could I write a UDF to calculate dimension of a cell (delta y and delta x)?
in order to write this uDF: (delta P/delta y)=(mu*u*R)/delta y

please help me
thanks alot...
regards
zohreh

ali hemmati · September 6, 2011, 09:44

Hello,

All cells are not necessarily cubic or hexagonal to assign them parameters such as 'delta y' or 'delta x'. As far as I know, there is no macro for this, though volume and centroid of the cell are accessible. It worth visiting the following web page

HTML Code:

http://my.fit.edu/itresources/manuals/fluent6.3/help/html/udf/node90.htm

I think it is better to clearly explain your purpose of calculating $\frac{dP}{dy}$ , inasmuch as there may be an alternative and more appropriate solution which leads to your desired goal.

September 2, 2011, 17:32	calculate Cell dimension	#1
zhhjll New Member zohreh Join Date: Feb 2011 Location: Tehran Posts: 20 Rep Power: 15	How could I write a UDF to calculate dimension of a cell (delta y and delta x)? in order to write this uDF: (delta P/delta y)=(muuR)/delta y please help me thanks alot... regards zohreh

September 6, 2011, 09:44		#2
ali hemmati New Member Ali Join Date: Mar 2011 Posts: 27 Rep Power: 15	Hello, All cells are not necessarily cubic or hexagonal to assign them parameters such as 'delta y' or 'delta x'. As far as I know, there is no macro for this, though volume and centroid of the cell are accessible. It worth visiting the following web page HTML Code: http://my.fit.edu/itresources/manuals/fluent6.3/help/html/udf/node90.htm I think it is better to clearly explain your purpose of calculating $\frac{dP}{dy}$ , inasmuch as there may be an alternative and more appropriate solution which leads to your desired goal.

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