On Apr 16, 4:07 pm, Robert Cimrman <cimr...@ntc.zcu.cz> wrote:
Hi Dominique!
The term dw_volume_lvf expects its first argument to be a material. What you really want for int( v . q ) is dw_mass_vector (with density 1.0) or dw_volume_wdot (also with material set to 1.0).
The best term for this would be dw_volume_dot, but it's not available. There is only dw_volume_wdot, which does, in fact, the same thing as dw_mass_vector for vector arguments. So IMHO dw_mass_vector could be removed.
Also it should be an easy exercise to create dw_volume_dot by following dw_volume_wdot - just strip the material stuff. Would you like to try it? :)
r.
Hi Robert,
I could make it work with dw_mass_vector. In the source code of dw_volume_wdot, there is:
if self.vdim > 1:
raise NotImplementedErrorso SfePy won't process my equations with that term in them. What's best at this point? Move the code from dw_mass_vector to dw_volume_wdot? Yes, I'll have a go at dw_volume_dot ;).
Cheers, Dominique
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