Compute discharge through a sharp-edged orifice under free outflow from the orifice area, driving head and discharge coefficient, for design checks on tanks, irrigation outlets and spillway structures.
薄壁孔口自由出流流量。
| Item | Formula / Note | Source / Standard |
|---|---|---|
| Orifice discharge | Q = C_d·A·√(2gh) | Torricelli 1643 + discharge coefficient |
| Sharp-edged orifice | C_d ≈ 0.61–0.62 | White, Fluid Mechanics |