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    "Pipe exit into a large reservoir: h = K v² / (2g) with K=1; kinetic energy is dissipated; K is reported, not an input",
    "Default g=9.80665 m/s²; default ρ=1000 kg/m³; incompressible; one mean speed in the pipe; exit geometry does not change K",
    "Not catalog minor-loss K given, not pipe-entrance flush/reentrant/rounded, not sudden expansion (v1−v2)², not Darcy f, not Q=Av"
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    "Pipe exit into a large reservoir: h = K v² / (2g) with K=1; kinetic energy is dissipated; K is reported, not an input",
    "Default g=9.80665; default ρ=1000 for Δp; incompressible; one mean speed in the pipe; exit geometry does not change K",
    "Not catalog minor-loss K given, not pipe-entrance flush/reentrant/rounded, not sudden expansion (v1−v2)², not Darcy f, not Q=Av"
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    "K, k, kind, ri_d, rd, n_miters, θ, f, Q, C_d, v1/v2 → MIXED_INPUT_ENCODING",
    "flush, reentrant, rounded, circular, or unknown mode → INVALID_MODE"
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  "sources": [
    {
      "title": "ISO 80000-4 — Mechanics",
      "section": "Length, speed, pressure",
      "url": "https://www.iso.org/standard/31895.html",
      "supports": "h is a head; v is a speed; Δp is a pressure",
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      "title": "White — Fluid Mechanics",
      "section": "Exit loss coefficient",
      "supports": "Pipe into a large reservoir: K=1 for every exit geometry because kinetic energy is dissipated. Not a catalog K input and not inlet geometry",
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