Hi all, I'm testing the effects of near wall obstacles, but I'm struggling to decide for a adequate method to build the mesh. The main goals are to have a hyperbolic mesh spacing perpendicularly to the the wall and easiness to place a cylinders inside that mesh close to a wall. So far I've been using makenek to build a series of boxes and replacing one with a cylinder box. The main issue is that grid size is hyperbolic everywhere, except in the boxes that lay in axis of the cylinder, where the mesh becomes uniform in order to fit the cylinder generated with makenek; and that the custom Fortran script that generates the .box files is quite bothersome to modify freely. I was wondering if nekenk could be used to place a cylinder inside a box with user-specified distribution or if you could recommend a meshing software or code that could do the job (hopefully linux-friendly and free). Regards, *Nicolás*