[phsieh2005]

Dear OpenFOAM experts:

I am trying to modify timeVaryingUniformFixedValue BC so that it can handle time varying with cycles.

Can someone explaim what "fvPatchField<Type>:perator== " means?

why I cannot do fvPatchField<Type>:perator== 1?

I can read in t1, t2, and tPeriod into the code, then, I want to

1. calculate cycle number: nCycle = int(runTime.value()/tPeriod)
2. localTime = runTime.value() - nCycle * tPeriod;
if(localTime >= 0 && localTime < t1)
operator == 0;
else if (localTime >= t1 && localTime < t2)
operator == 1;
else if(localTime <= tPeriod)
operator = 0;

----
my problem with 1 above is that, OpenFOAM gave type cast error. If I use floor() function, it is not support in foam name space.
in 2 above, how to assign the patch value to either 0 or 1?

Can someone shed some light on this?

Pei

[henrik]

Dear phsieh2005,

why I cannot do fvPatchField<Type>perator== 1?

Because it's templated and 1 is not valid for a vector or tensor. Use

 fvPatchField<Type>:operator== pTraits<Type>::one;

timeVaryingUniformFixedValue also has an option "repeat" which already does what you are looking for.

Henrik

[phsieh2005]

Thanks a lot for the answer, Henrik!

I was about to give up on this.

Pei