dolfin team mailing list archive

["Johan Hoffman" <jhoffman@xxxxxxxxxx>]

> On Mon, Jun 12, 2006 at 04:18:06PM +0200, Johan Hoffman wrote:
>> Great work Johan!
>>
>> I hope to be able to try it out as soon as possible. In particular I'll
>> start working on a fluid-structure interaction problem with the fluid
>> (guess what...) in a tube is interacting with its elastic boundary,
>> probably modelled as a membrane. Hopefully Ko would be suitable to
>> handle
>> the structure problem?
>>
>> /Johan
>>
>>
>
> Yes, definitely. Ko doesn't include a membrane model (yet at least),
> it's all solid mechanics. But I assume the tube walls have a finite
> thickness? If they are not unreasonably thin, the performance penalty
> should not be severe.
>
>   Johan
>

Ok. A solid model is an option, but it seems that a membrane model may be
sufficient. I'll see what I'll do. Adding a membrane model to Ko may then
later be a natural step, which probably does not take too much effort?

This connects also to a previous discussion on obtaining a surface mesh
automatically from a volume mesh. With a membrane model the equations
would be solved on the surface mesh being the boundary of the fluid volume
mesh. The resulting coupling as a fluid-stucture interaction problem could
be quite a challange depending on the properties of the solid vs fluid.

/Johan