Defining fields as functions of space

hertzsprung · June 30, 2015, 08:40

I have some initial conditions that are specified by functions of (x,y,z).

I would like to programmatically define a field whose values are a function of (x,y,z). Can this be done as part of field construction, rather than looping over cells/faces and setting each value individually?

Further, can I set the internal field and boundary values in a straightforward manner?

chriss85 · July 3, 2015, 05:08

You need to loop over the cells and manually assign them values. Same for the boundary, you can use a fixedValue BC and assign values to patch faces.

huyidao · July 4, 2015, 09:03

Which solver do you use?Maybe you can try the funkysetfields in the swak4foam.

June 30, 2015, 08:40	Defining fields as functions of space	#1
hertzsprung New Member James Shaw Join Date: May 2014 Posts: 8 Rep Power: 11	I have some initial conditions that are specified by functions of (x,y,z). I would like to programmatically define a field whose values are a function of (x,y,z). Can this be done as part of field construction, rather than looping over cells/faces and setting each value individually? Further, can I set the internal field and boundary values in a straightforward manner?

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July 3, 2015, 05:08		#2
chriss85 Senior Member Join Date: Oct 2013 Posts: 397 Rep Power: 18	You need to loop over the cells and manually assign them values. Same for the boundary, you can use a fixedValue BC and assign values to patch faces.

July 4, 2015, 09:03		#3
huyidao New Member nemo Join Date: Jan 2015 Posts: 26 Rep Power: 11	Which solver do you use?Maybe you can try the funkysetfields in the swak4foam.