finiteArea: new models and solvers for films

• Adding kinematicParcelFoam solver:
  • The original thermoSurfaceFilm sub-models were divided between kinematicSurfaceFilm and thermoSurfaceFilm in order to use the surfaceFilm model in a kinematicCloud.
  • The film interaction models are now in a kinematicSurface class which can be used in a kinematic cloud adding constant thermal properties (p and T) for some sub-models, e.g. drySplashInteraction, wetSplashInteraction etc.
  • pRef and Tref were added to the kinematicSurfaceFilm as entry to the regionFilm when used with a kinematic cloud.
  • In the finite area surface film model Tref, pRef are stored in filmSubModel.
• Film models:
  • Only laminar turbulence is available for wall friction and gas shear stress. Wall friction models:
    • quadraticProfile,
    • linearProfile,
    • DarcyWeisbach,
    • ManningStrickle
  • gas friction models: Cf *(Ufilm - Ufluid). This would need to be improved using turbulent shear stress from the flow.
  • curvatureSepration injection model from the film to Lagrangian particles
  • minimum (fThreshold) force and minimum curvature (minInvR1) for separation were added to have more control on determining the points of film separation.
  • To force wall-like BC from the fluid side the option zeroWallVelocity true;. Allows the film to be seen as zero U BC by the flow.
  • forces: The only available extra forces (apart from gravity) is contact angle force: perturbedTemperatureDependentContactAngle