Saving array or matrix in UDM

vucrusader · January 27, 2016, 13:29

All,

For a user defined scalar function I wish to save cell center values of a given scalar at each iteration (similar to temperature, velocity etc. in fluent). To do so I believe that I have to use a user defined memory allocation. However, Fluent states that I am limited to 500 UDM variables.

If my discretization requires more than 500 cells, how do I save all of them?

Is the UDM variable simply a memory location (like a pointer in c) so that I could save an entire array or matrix in a single UDM variable or will I be able to save only one value (1) to a single UDM?

Regards,

Shayan · January 16, 2017, 03:22

Hello,

As far as I know, we cannot save an array or matrix ( e.g gradient of a scalar) in UDM. Therefore, it's just for values.

January 27, 2016, 13:29	Saving array or matrix in UDM	#1
vucrusader New Member Join Date: Jan 2016 Posts: 3 Rep Power: 10	All, For a user defined scalar function I wish to save cell center values of a given scalar at each iteration (similar to temperature, velocity etc. in fluent). To do so I believe that I have to use a user defined memory allocation. However, Fluent states that I am limited to 500 UDM variables. If my discretization requires more than 500 cells, how do I save all of them? Is the UDM variable simply a memory location (like a pointer in c) so that I could save an entire array or matrix in a single UDM variable or will I be able to save only one value (1) to a single UDM? Regards,

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January 16, 2017, 03:22		#2
Shayan New Member Join Date: Aug 2011 Posts: 8 Rep Power: 14	Hello, As far as I know, we cannot save an array or matrix ( e.g gradient of a scalar) in UDM. Therefore, it's just for values.