fuellib.correlate.mixture.surface_tension

fuellib.correlate.mixture.surface_tension(fuel, T, Yi=None, *, correlation='Brock-Bird')

Calculate surface tension of the mixture.

Uses arithmetic pseudo-property method recommended by Hugill and van Welsenes (1986).

Parameters:

  • fuel (Fuel) – Fuel object.

  • T (Quantity[float]) – Temperature to compute property.

  • Yi (Quantity[ndarray[tuple[int]]] | None) – Mass fractions of each compound in the mixture. Defaults to fuel.Y_0 (initial mass fractions).

  • correlation (Literal['Pitzer', 'Brock-Bird']) – Correlation method (“Pitzer” or “Brock-Bird”). Defaults to “Brock-Bird”.

Returns:

Mixture surface tension in N/m.

Return type:

Quantity[float]