The other day I just stumbled on that image of shanideva with his rings, and it made me wonder something I should have naturally thought of much before: why are the planets round while the bigger c...

The reason for writing this post is quite unrelated; I was reading into how a suppressor silences the sound of bullets leaving the barrel, by not allowing the hot gases to expand out of it. Sound i...

Continuing from the post about derivation of the logarithmic region of the turbulent boundary layer, this post aims to elaborate on how CFD codes compute the wall shear stress for various scenarios...

This post will try to consolidate my learnings about the turbulent boundary layers, in particular, the theory leading up to the log-law. Here, two important assumptions are that of the external fl...

The basic requirements of a given numerical scheme are to be consistent, stable, and its ability to converge to a physically consistent solution. For linear problems (i.e., which do not involve mul...