UDS gradient
 

Hi to all fluent users,

I'm working with FLUENT 6.020 and I've to define two UDSs, but when I try to use the function C_UDSI_G(c,t, i)I obtain, as usual..., an error message.

Any suggestion will be appreciated!!!

Thanks in advance.

Giordano Bruno

Re: UDS gradient
 

If you are referring to a runtime error when using your adjust function that contains the C_UDSI_G(c,t) command, you have to run one iteration with the hook function turned off.

Why? I do not know.

Re: UDS gradient
 

Thank you very much!!!

I'm going to try your suggestion...

Giordano Bruno

Re: UDS gradient
 

Doctor Caojing told me that before iteration no memory for the gradient is allocated, so before you call the gradient of any uds or other variable, you need to run one iteration.

Re: UDS gradient
 

Thank you very much for your useful responses.

Giordano Bruno