Here is my work on a small but may be interesting physical problem:
Semi-cylindrical_obstacle_in_uniform_airflow.pdf

It is a beautiful mix of electrodynamics and fluid mechanics. And though it does not bring any new knowledges, this small article introduce a simple way to deal with this fancy problem. In detail, this is the abstract: 

When studying the velocity field of an ideal incompressible fluid around an obstacle, we pay special attention to symmetric configurations (sphere, cylinder, etc.). Although finding direct elementary solutions is not simple, by analogy with magnetostatics and electrostatics, we can obtain equivalent formal solutions. Through this analogy, the fluid problem can be fully analyzed mathematically, and the method can be extended to a large class of physical phenomena described by Laplace's equation...

I wrote this one year ago, in the beginning of 2025, and shared it on the discord of xPhO- a Vietnamese physics academia community. Hope you guys enjoy it!