[rishik686]

Hi everyone,
I am trying to implement a time-varying velocity inlet boundary condition.

by using codedFixedValue type.

But, i am getting the follwing error while compiling,

error: return-statement with a value, in function returning ‘void’ [-fpermissive]

I have attached my U file also,

Please help me out to overcome this error.

[Swirl]

I think your error lies in using the "return" statement, since the function is aparently defined as a void (which doesn't have a return value). The C++ source guide gives an example of how to use this type of BC:

https://cpp.openfoam.org/v10/classFo...atchField.html

I think, in your case it could look something like:

const scalar t = this->db().time().value();
operator==(<description of U-vector here>);

[rishik686]

Originally Posted by Swirl

I think your error lies in using the "return" statement, since the function is aparently defined as a void (which doesn't have a return value). The C++ source guide gives an example of how to use this type of BC:

https://cpp.openfoam.org/v10/classFo...atchField.html

I think, in your case it could look something like:

const scalar t = this->db().time().value();
operator==(<description of U-vector here>);

thanks swirl,
i corrected it,need to rewritr the code with operator.
thanks for your help