Mixed boundary condition for temperature, to be used in the flow and pyrolysis regions when a film region model is used. More...

Detailed Description

Mixed boundary condition for temperature, to be used in the flow and pyrolysis regions when a film region model is used.

Example usage: myInterfacePatchName { type filmPyrolysisRadiativeCoupledMixed; Tnbr T; kappa fluidThermo; Qr Qr; kappaName none; filmDeltaDry 0.0; filmDeltaWet 3e-4; value $internalField; }

Needs to be on underlying mapped(Wall)FvPatch. It calculates local field as ratio = (filmDelta - filmDeltaDry)/(filmDeltaWet - filmDeltaDry),

when ratio = 1 is considered wet and the film temperarture is fixed at the wall. If ratio = 0 (dry) it emulates the normal radiative solid BC.

In between ratio 0 and 1 the gradient and value contributions are weighted using the ratio field in the followig way:

qConv = ratio*htcwfilm*(Tfilm - *this); qRad = (1.0 - ratio)*Qr;

Then the solid can gain or loose energy through radiation or conduction towards the film.

Note: kappa : heat conduction at patch. Gets supplied how to lookup/calculate kappa:

'lookup' : lookup volScalarField (or volSymmTensorField) with name
'basicThermo' : use basicThermo and compressible::RASmodel to calculate K
'solidThermo' : use basicSolidThermo K()

Qr is the radiative flux defined in the radiation model.

Source files

The documentation for this class was generated from the following file:

src/regionModels/regionCoupling/derivedFvPatchFields/filmPyrolysisRadiativeCoupledMixed/filmPyrolysisRadiativeCoupledMixedFvPatchScalarField.H