🧱 Earthen Wall Thermal Lag: Decrement Factor and Day-Night Cycle (2D)

Cross-section of a thick earthen wall between a hot outdoor day-night cycle and a room. Set wall thickness, conductivity, density, outdoor swing and the indoor surface coefficient, then watch the temperature wave travel through the wall. The decrement factor, time lag and U-value come from one-dimensional heat conduction and a complex transfer matrix, with four in-page numerical checks. A thermal companion to the 3D study of earthen mosque architecture.

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install