UDF for orous zone porosity

November 10, 2004, 11:54

I need to change the porosity of a porous zone as a function of time.

The FLUENT manual tells that the porosity defined in the UDF must utilize the DEFINE_PROPERTY macro. I wrote the code and tried to use both interpreted and compiled UDF, but I can't solve the case.

The following things happen:

1) If I use interpreted UDF, FLUENT 6.1.22 tells a segmentation violation occoured.

2) If I use compiled UDF, I get the message:

Error: get_udf_function: function cell_viscosity has wrong type: 1 != 2

Error Object: #f

Did anyone have similar problems?

Hi

ap

November 10, 2004, 18:38

Hi,

The fluent manual has a correction in it for the porosity function. Instead of DEFINE_PROPERTY you need to use DEFINE_PROFILE. Hopefully this will fix your errors.

Steve

November 10, 2004, 19:26

Thank you, Steve.

I will try (and also I'll upgrade the manual, too ;-)).

Hi

ap

November 10, 2004, 11:54	UDF for orous zone porosity	#1
ap Guest Posts: n/a	I need to change the porosity of a porous zone as a function of time. The FLUENT manual tells that the porosity defined in the UDF must utilize the DEFINE_PROPERTY macro. I wrote the code and tried to use both interpreted and compiled UDF, but I can't solve the case. The following things happen: 1) If I use interpreted UDF, FLUENT 6.1.22 tells a segmentation violation occoured. 2) If I use compiled UDF, I get the message: Error: get_udf_function: function cell_viscosity has wrong type: 1 != 2 Error Object: #f Did anyone have similar problems? Hi ap

November 10, 2004, 18:38	Re: UDF for orous zone porosity	#2
Steve Guest Posts: n/a	Hi, The fluent manual has a correction in it for the porosity function. Instead of DEFINE_PROPERTY you need to use DEFINE_PROFILE. Hopefully this will fix your errors. Steve

November 10, 2004, 19:26	Re: UDF for orous zone porosity	#3
ap Guest Posts: n/a	Thank you, Steve. I will try (and also I'll upgrade the manual, too ;-)). Hi ap

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