🕳️ Sewer Pipe: Partial Flow, Manning Depth and Self-Cleansing Shear (2D)

Cross-section and side view of a circular sewer running part full, with water depth, velocity and the shear on the pipe floor compared with what grains of sediment need to move. Set pipe diameter, slope, roughness, flow and grain size, and see the normal depth, velocity, the pipe capacity, the Froude number and the smallest slope that keeps the invert clean. Manning depth, section geometry and hydraulic elements are checked numerically, with four in-page numerical checks.

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