stitch multiple ree grids

[Yonghan Xin]

Hi,everyone.

Is it possible to stitch mulitple tree grids together with the  Basilisk, as gerris did? Becasue I want to make a non-cubic computation domain.

Best regards,

yonghan

[jmlopez...@gmail.com]

Not yet

[Godunov CIR]

Hello Yonghan,

I think one workaround is to use the embedded solid (http://basilisk.fr/src/embed.h). You could place the solid in the area not of your interest and force the cells inside the solid remain coarse during the simulation. I had one application similar to your description, and I managed to simulate the non-cubic domain using this method.

Another approach is to use the mask trick, but this trick cannot work together with parallelism.

Jeffery

[Stephane Popinet]

> Is it possible to stitch mulitple tree grids together with the
> Basilisk, as gerris did? Becasue I want to make a non-cubic computation
> domain.

You cannot "stitch" but you can make non-cubic domains with multigrids,
or use embed. See:

http://basilisk.fr/src/Tips#non-cubic-domains
http://basilisk.fr/src/embed.h

You should not use "mask" as it is obsolete.

Stephane

[Yonghan Xin]

Appreciate it, everyone! 😊