[Redoctober]

Hi fellows,

I have spent 5 days searching the forums regarding the implementation of a time based function defined rotating wall velocity of a cylinder i.e. V_tangential = f(t) = V_max*Sin(wt)

I found that i can do any of the following

1. Use table

Which is something like this

Cylinder
{
type rotatingWallVelocity;
origin (0.04 0.015 0 );
axis (0 0 1);
omega table
(
(0 0)
(1 0.0051)
);
}

2. Using a UDF or implementing own BC

i have no idea how to do it because i have no knowledge in C++

3. using OscillatingFixedvalue BC

Impossible because the function for the components becomes way too complicated

So any ideas ??

[nimasam]

well there is two options in OpenFOAM,
1- groovyBC
2- codedFixed

search for them at forum, you will earn much