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Pool Fire Heat Flux TNO

Assumes unobstructed line-of-sight; steady wind at 10 m height

Liquid i

—

Pool size input i

Area option uses D = √(4A/π).

Pool diameter i

Wind speed (at 10 m height) i

mph

Target relative to wind i

Use downwind for conservative heat flux.

Target distance from pool edge i

Target elevation above grade i

Ambient temperature i

°F

Relative humidity i

Flame tilt correlation i

If u* < 1, tilt is set to 0°.

Wind-stretched base (D′) i

SEP model also uses the larger diameter when enabled.

Target surface orientation i

Heat flux reported includes atmospheric transmissivity τa.

Model: q″ = SEP · Fview · τa

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q″ Heat flux at target

Heat flux (selected orientation)

—

Flame length & tilt

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Quantity	Value
Surface emissive power (SEP) TNO Mudan form: depends on diameter (uses D′ when enabled)	—
Atmospheric transmissivity (τa) Bagster form using water vapor pressure and path length	—
View factor (numerical cylindrical surface) Numerical integration: diffuse tilted cylinder → point	—

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Pool Fire Heat Flux (TNO Solid Flame Model)