[overture] Re: The boundary condition for the moving circle in the fluid flow
- From: Kyle Hord <kmhord01@xxxxxxxxx>
- To: overture@xxxxxxxxxxxxx
- Date: Fri, 27 Sep 2013 09:50:40 -0400
Justin,
The proper boundary condition for a moving cylinder would be a no-slip
condition. The math is nearly identical for a moving cylinder as if it was
stationary, just preformed in a moving reference frame. There are one or
two publications on Overture describing how the Navier-Stokes equations are
transformed to be used with moving grids.
You would only use a slip condition if the surface should not develop a
boundary layer on it. In your case, a cell in a channel, you require a
no-slip condition on the cylinder.
Kyle
On Thu, Sep 26, 2013 at 9:33 PM, zmh021810 <zmh021810@xxxxxxxxx> wrote:
> Dear Henshaw,
>
> Recently I am thinking that in Overture, what is the boundary condition
> that is used to deal with the moving circle in fluid flow? I find several
> cases and I can run it. But the mathematics treatment for the circle
> boundary is not clear for me. Is that also No-slip
> boundary condition?
>
> Best wishes for you!
>
> Justin
>
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