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Old   May 26, 2008, 12:46
Default mass diffusivity
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pour
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Hi all I am using binary diffusion model , I use DEFINE_DIFFUSIVITY to enter mass diffusivity, but I recieve this error: DOMAIN_MULTICOMP_DIFF: undeclared variable my udf is :

#include "udf.h" DEFINE_DIFFUSIVITY(uds_diff,c,t,i) { real d; C_DIFF_L(c,t,0,1)= 12345; d = C_DIFF_L(c,t,0,1); return d; }

How I must use C_DIFF_L(c,t,i,j)in udf?

thanks

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Old   May 29, 2008, 08:15
Default Re: mass diffusivity
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pour
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Hi all I am using binary diffusion model , I use DEFINE_DIFFUSIVITY to enter mass diffusivity, but I recieve this error: DOMAIN_MULTICOMP_DIFF: undeclared variable. my udf is :

#include "udf.h" DEFINE_DIFFUSIVITY(uds_diff,c,t,i) { real d; C_DIFF_L(c,t,0,1)= 12345; d = C_DIFF_L(c,t,0,1); return d; }

How I must use C_DIFF_L(c,t,i,j)in udf?

thanks

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