[aspect-devel] Velocity Boundary conditions

Fri Jun 2 15:04:30 PDT 2017

 Hi Wolfgang,

     Wow, I am amazed. So, that means that I should prescribe two
components and leave the third in omission.

for a wall with normal vector z

      Vx =0 , Vy=0

how to write this in the parameter file?

Set them as prescribed velocities? and then prescribe just two components?

subsection Boundary velocity model
  subsection Function
    set Variable names      = x,y
    set Function expression = 0 ; 0 ;
 end
end

??

Felipe

On Fri, Jun 2, 2017 at 2:26 PM, Wolfgang Bangerth <bangerth at tamu.edu> wrote:

> On 06/02/2017 03:17 PM, FELIPE ORELLANA ROVIROSA wrote:
>
>>
>>         At a wall boundary, is it possible to prescribe 2 components of
>> the velocity (for example to 0 in particular for my case), and leave the
>> 3rd free?
>>
>
> Only if those two are the two tangential components of the velocity.
>
> Best
>  W.
>
> --
> ------------------------------------------------------------------------
> Wolfgang Bangerth          email:                 bangerth at colostate.edu
>                            www: http://www.math.colostate.edu/~bangerth/
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