Exponential_Vapor_Cooling

Syntax: Bc Diffuse For Cvfem_Energy ([{of} SpeciesName] | [{in} MaterialPhaseName] | [{ls} {a | b | c}]) {@ | at | for | on | over} Mesh Extent Name ([Touching TouchingMeshExtent] | [Opposing OpposingMeshExtent]) = Exponential_Vapor_Cooling ([Data = data] | Tboil = tboil | L = l | Pa = pa | Mw = mw | Alpha = alpha | [Tl = tl] | [Th = th])
Summary: Exponential vapor cooling energy flux
Description: Flux is given by:

$F = P_a L \alpha \exp\left(\frac{L}{R}\left(\frac{1}{T_{boil}}-\frac{1}{T}\right)\right) \sqrt{\frac{1}{2 \pi R T}}$

where $R$ is the specific gas constant ( $\bar{R}$ /MW). For $T$ less than $T_L$ , zero flux is applied. For $T$ between $T_L$ and $T_H$ , a 3rd order smoothing polynomial is used to provide continuity of values and derivatives between 0 and the expression given above. For $T$ greater than $T_H$ , the above expression is used. If not provided, $T_L$ and $T_H$ are set to 10% below and above $T_{Boil}$ , respectively.