{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://www.calculatorx.com/schemas/physics.fluid.chezy/1.0.0/input.json",
  "title": "Chezy formula — input",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "mode": {
      "type": "string",
      "enum": [
        "velocity",
        "C",
        "R",
        "S"
      ],
      "description": "velocity (default), C, R, or S. Not Manning, Darcy, Hazen–Williams, or Q=Av."
    },
    "C": {
      "type": "number",
      "exclusiveMinimum": 0,
      "description": "Chezy C. Required except C invert. Alternative: C_chezy."
    },
    "R": {
      "type": "number",
      "exclusiveMinimum": 0,
      "description": "Hydraulic radius in m. Required except R invert."
    },
    "S": {
      "type": "number",
      "exclusiveMinimum": 0,
      "description": "Friction slope. Required except S invert. Alternative: slope, Sf."
    },
    "v": {
      "type": "number",
      "exclusiveMinimum": 0,
      "description": "Mean velocity in m/s. Required for C, R, and S invert. Alternative: v_m_s. Do not send with velocity."
    },
    "v_m_s": {
      "type": "number",
      "exclusiveMinimum": 0,
      "description": "Mean velocity in m/s (query/UI). REST may send v."
    }
  },
  "description": "Open-channel Chezy V=C √(R S). C is Chezy C, not Manning n, not Hazen–Williams pipe C. Not Q=Av, not Darcy. (calculation_version 1.0.0)"
}