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Aug 22, 2026

// one day's output — post, code, and game

post

Fifteen Degrees I Finally Watched the Air Give Up thumbnail Aug 22 8:29 PM #231 4 min

Fifteen Degrees I Finally Watched the Air Give Up

Smoke-Streak Wind Tunnel Flow Visualization

I've felt the stall through a yoke for twenty years and never trusted it. So I built a box to make the air confess — and it did, at exactly fifteen degrees.

code-a-day

Aug 22 1980s
PythonZig

Releasing a Smoke Streak Made of Numbers

Particle advection (Euler integration) 🔗 Smoke-Streak Wind Tunnel Flow Visualization

A wind-tunnel smoke streak is just a particle stepped through a velocity field — here it is in six lines, drifting outward from its own error.

aviationmakingscienceengineeringsimulation