embed-tree Assertion using intersection of solids

[Daniel Rakotonirina]

Dear Basilisk Community,

I know, I have seen this topic earlier but the solution provided could not be applied to my issue. I am trying to do a simulation of flow past spheres in tandem using inspiration from http://basilisk.fr/src/examples/sphere.c and http://basilisk.fr/src/examples/porous3D.c. My code works on coarse grid but crashes with higher maxlevel with the below error. I am trying to understand what is going on when the grid is small.

Thank you for your help.

Daniel

 

embed-tree.h:312: Assertion `coarse(cs,child.x,child.y) && coarse(cs,child.x,0,child.z) && coarse(cs,0,child.y,child.z) && coarse(cs,child.x,child.y,child.z)' failed.