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Hydrology & Open-Channel Calc – Orifice Discharge
x402
Hydrology & Open-Channel Calc – Orifice Discharge is a paid API for AI agents from hydrology-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-11-02).
Calculates orifice discharge flow rate Q = Cd × A × sqrt(2 × g × h) for round or custom-area openings, supporting multiple edge types and both SI and US units.
Price / call$0.02
Success—
StatusUnknown
How this service works
Orifice discharge Q = Cd A sqrt(2 g h) for a round or given-area opening, with typical Cd by edge type, SI or US.
Output
Returns the computed discharge Q (in m³/s or ft³/s), the discharge coefficient Cd used, orifice area, ideal velocity, supplemental flow values in litres/second or gallons/minute, a plain-language summary, the edge type applied, and a disclaimer about real-world applicability.
Example use cases
Tank drain flow rate estimation
“I have a sharp-edged circular hole 0.1 m in diameter at the bottom of a tank with 3 m of water above it — what's the discharge flow rate in SI units?”
Irrigation outlet sizing check
“What flow rate will a rounded-edge orifice with 0.05 m² area produce under 1.8 m of head in SI? I want to check if it meets our irrigation demand.”
US units pipe discharge calculation
“Estimate the discharge through a short-tube orifice that's 0.5 feet in diameter with a head of 4 feet — give me the answer in gallons per minute using US units.”
Technical details
Endpoint
GEThttps://hydrology-calc.x402tookit.com/orifice-flow?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, formula-based orifice discharge calculation (Q = Cd A sqrt(2gh)) with built-in typical Cd values by edge type, support for both SI and US units, and no need to set up local hydraulic software. Prefer it over general-purpose calculators when you specifically need orifice (submerged opening) flow rather than weir, pipe, or open-channel Manning flow.
Side effects
- Missing required 'head' parameter returns an error
- Neither 'diameter' nor 'area' provided results in a calculation failure
- Cd override outside 0.3–1.0 range may be rejected or flagged
- Invalid 'edge' string not matching known enum values falls back to default or returns error
- Inconsistent unit combinations (e.g. metric diameter with us units) may produce unexpected results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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