{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://www.calculatorx.com/schemas/physics.fluid.iso_cone/1.0.0/input.json",
  "title": "ISO 5167 cone meter — input",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "mode": {
      "type": "string",
      "enum": [
        "flow",
        "pressure",
        "coefficient"
      ],
      "description": "flow (default), pressure, or coefficient. Not given C_d, not ISA 1932, not Q=Av."
    },
    "D": {
      "type": "number",
      "exclusiveMinimum": 0,
      "description": "Pipe inside diameter in m. Required. Envelope [50 mm, 500 mm]. Alternatives: D_m, pipe, pipe_D. Do not send nozzle D1+D2 or orifice d+D."
    },
    "d_c": {
      "type": "number",
      "exclusiveMinimum": 0,
      "description": "Cone beta-edge diameter in m. Required unless beta. Alternatives: dc, cone, cone_diameter, d_cone. Do not send orifice bore d."
    },
    "beta": {
      "type": "number",
      "exclusiveMinimum": 0,
      "description": "ISO cone β=√(1−(d_c/D)²), not d_c/D. Alternative to d_c. Envelope [0.45, 0.75]."
    },
    "Re_D": {
      "type": "number",
      "exclusiveMinimum": 0,
      "description": "Pipe Reynolds number on D. Required as the ISO envelope [8e4, 1.2e7], not a term in C. Alternatives: Re, ReD. Do not send ρ, μ, v."
    },
    "dP": {
      "type": "number",
      "exclusiveMinimum": 0,
      "description": "Differential pressure in Pa. Required for flow. Alternatives: deltaP, dP_Pa, dp."
    },
    "rho": {
      "type": "number",
      "exclusiveMinimum": 0,
      "description": "Density in kg/m³. Required for flow and pressure."
    },
    "Q": {
      "type": "number",
      "exclusiveMinimum": 0,
      "description": "Volume flow in m³/s. Required for pressure invert. Alternative: flow, Q_m3_s."
    }
  },
  "required": [
    "D",
    "Re_D"
  ],
  "description": "ISO 5167-5 uncalibrated cone Q=C E A √(2Δp/ρ) with C=0.82 and β=√(1−(d_c/D)²). Not ISA 1932, not RHG orifice, not ISO 5167-4 type C, not long-radius, not given C_d, not Q=Av, not Darcy. (calculation_version 1.0.0)"
}