House & Home Physics
Water Hammer Transient
ΔP surge, then damped oscillation
Slam a valve shut and the moving column of water rams to a stop, ringing the pipe with a decaying pressure oscillation — the bang in the walls.
Computed & rendered in pure C# on the frozen OnlyCSharp 1.8 library — animation baked to GIF with the library's own
Gif encoder (no GPU, no ffmpeg, no external packages).