[potatoning]

Hi~

I have defined the global variations in the udf, and I want to reset the value of variations to zero after every fluent step.
how to achieve this?

tks a lot~

[`e`]

Could you include the UDF code you're asking about?

[potatoning]

Originally Posted by `e`

Could you include the UDF code you're asking about?

I set 2 global variables in udf, and they are used to accumulate the results of source.
After each iteration of fluent step, the new results are added to the old one.
so I want to reset the global variables to zero for the new step.
simple code as:

static real Sesum=0.;

DEFINE_SOURCE(engergy,c,t,dS,eqn)
{
real se=0.;
se=C_T(c,t);
Sesum+=se;
return se;
}

[`e`]

The User-defined ADJUST hook is executed at the start of each iteration before the transport equations are solved. For example, to reset a variable to zero at each iteration:

DEFINE_ADJUST(my_adjust,d)
{
    a_global_variable=0.;
}

[potatoning]

Originally Posted by `e`

The User-defined ADJUST hook is executed at the start of each iteration before the transport equations are solved. For example, to reset a variable to zero at each iteration:

DEFINE_ADJUST(my_adjust,d)
{
    a_global_variable=0.;
}

tks a lot~
I'll try~