BCs System

Available Objects

  • Moose App
  • ConvectiveFluxBCDetermines boundary values via the initial and final values, flux, and exposure duration
  • DGFunctionDiffusionDirichletBC
  • DiffusionFluxBCComputes a boundary residual contribution consistent with the Diffusion Kernel. Does not impose a boundary condition; instead computes the boundary contribution corresponding to the current value of grad(u) and accumulates it in the residual vector.
  • DirichletBCImposes the essential boundary condition , where is a constant, controllable value.
  • EigenDirichletBCDirichlet BC for eigenvalue solvers
  • FunctionDirichletBCImposes the essential boundary condition , where is a (possibly) time and space-dependent MOOSE Function.
  • FunctionNeumannBCImposes the integrated boundary condition , where is a (possibly) time and space-dependent MOOSE Function.
  • FunctionPenaltyDirichletBC
  • FunctionPresetBCThe same as FunctionDirichletBC except the value is applied before the solve begins
  • LagrangeVecDirichletBCImposes the essential boundary condition , where are constant, controllable values.
  • LagrangeVecFunctionDirichletBCImposes the essential boundary condition , where components are calculated with functions.
  • MatchedValueBCImplements a NodalBC which equates two different Variables' values on a specified boundary.
  • NeumannBCImposes the integrated boundary condition , where is a constant, controllable value.
  • OneDEqualValueConstraintBC
  • PenaltyDirichletBCEnforces a Dirichlet boundary condition in a weak sense by penalizing differences between the current solution and the Dirichlet data.
  • PostprocessorDirichletBC
  • PostprocessorNeumannBC
  • PresetBCSimilar to DirichletBC except the value is applied before the solve begins
  • SinDirichletBCImposes a time-varying essential boundary condition , where varies from an given initial value at time to a given final value over a specified duration.
  • SinNeumannBCImposes a time-varying flux boundary condition , where varies from an given initial value at time to a given final value over a specified duration.
  • VacuumBC
  • VectorNeumannBCImposes the integrated boundary condition , where is a user-defined, constant vector.
  • WeakGradientBCComputes a boundary residual contribution consistent with the Diffusion Kernel. Does not impose a boundary condition; instead computes the boundary contribution corresponding to the current value of grad(u) and accumulates it in the residual vector.
  • Rdg App
  • AEFVBCA boundary condition kernel for the advection equation using a cell-centered finite volume method.
  • Functional Expansion Tools App
  • FXFluxBCSets a flux boundary condition, evaluated using a FunctionSeries instance. This does not fix the flux, but rather 'strongly encourages' flux agreement by penalizing the differences through contributions to the residual.
  • FXValueBCImposes a fixed value boundary condition, evaluated using a FunctionSeries instance.
  • FXValuePenaltyBCSets a value boundary condition, evaluated using a FunctionSeries instance. This does not fix the value, but rather 'strongly encourages' value agreement by penalizing the differences through contributions to the residual.
  • XFEMApp
  • CrackTipEnrichmentCutOffBCSimilar to DirichletBC except the value is applied before the solve begins
  • Heat Conduction App
  • ConvectiveFluxFunctionDetermines boundary value by fluid heat transfer coefficient and far-field temperature
  • CoupledConvectiveFlux
  • CoupledConvectiveHeatFluxBCConvective heat transfer boundary condition with temperature and heat transfer coefficent given by auxiliary variables.
  • GapHeatTransferTransfers heat across a gap between two surfaces dependant on the gap geometry specified.
  • HeatConductionBC
  • Richards App
  • Q2PPiecewiseLinearSinkSink of fluid, controlled by (pressure, bare_fluxes) interpolation. This is for use in Q2P models
  • RichardsExcavAllows the user to set variable values at the face of an excavation. You must have defined the excavation start time, start position, etc, through the excav_geom_function
  • RichardsHalfGaussianSink
  • RichardsPiecewiseLinearSink
  • Tensor Mechanics App
  • CoupledPressureBCApplies a pressure from a variable on a given boundary in a given direction
  • DashpotBC
  • DisplacementAboutAxisImplements a boundary condition that enforces rotationaldisplacement around an axis on a boundary
  • InteractionIntegralBenchmarkBC
  • PresetAccelerationPrescribe acceleration on a given boundary in a given direction
  • PresetDisplacementPrescribe the displacement on a given boundary in a given direction.
  • PresetVelocity
  • PressureApplies a pressure on a given boundary in a given direction
  • StickyBCImposes the boundary condition if exceeds the bounds provided
  • Navier Stokes App
  • EnergyFreeBC
  • INSMomentumNoBCBCLaplaceFormThis class implements the 'No BC' boundary condition based on the 'Laplace' form of the viscous stress tensor.
  • INSMomentumNoBCBCTractionFormThis class implements the 'No BC' boundary condition based on the 'traction' form of the viscous stress tensor.
  • INSTemperatureNoBCBCThis class implements the 'No BC' boundary condition discussed by Griffiths, Papanastiou, and others.
  • ImplicitNeumannBCThis class implements a form of the Neumann boundary condition in which the boundary term is treated 'implicitly'.
  • MassFreeBC
  • MomentumFreeBC
  • MomentumFreeSlipBC
  • NSEnergyInviscidSpecifiedBCThis class corresponds to the inviscid part of the 'natural' boundary condition for the energy equation.
  • NSEnergyInviscidSpecifiedDensityAndVelocityBCThis class corresponds to the inviscid part of the 'natural' boundary condition for the energy equation.
  • NSEnergyInviscidSpecifiedNormalFlowBCThis class corresponds to the inviscid part of the 'natural' boundary condition for the energy equation.
  • NSEnergyInviscidSpecifiedPressureBCThis class corresponds to the inviscid part of the 'natural' boundary condition for the energy equation.
  • NSEnergyInviscidUnspecifiedBCThis class corresponds to the inviscid part of the 'natural' boundary condition for the energy equation.
  • NSEnergyViscousBCThis class couples together all the variables for the compressible Navier-Stokes equations to allow them to be used in derived IntegratedBC classes.
  • NSEnergyWeakStagnationBCThe inviscid energy BC term with specified normal flow.
  • NSImposedVelocityBCImpose Velocity BC.
  • NSImposedVelocityDirectionBCThis class imposes a velocity direction component as a Dirichlet condition on the appropriate momentum equation.
  • NSInflowThermalBCThis class is used on a boundary where the incoming flow values (rho, u, v, T) are all completely specified.
  • NSMassSpecifiedNormalFlowBCThis class implements the mass equation boundary term with a specified value of rho*(u.n) imposed weakly.
  • NSMassUnspecifiedNormalFlowBCThis class implements the mass equation boundary term with the rho*(u.n) boundary integral computed implicitly.
  • NSMassWeakStagnationBCThe inviscid energy BC term with specified normal flow.
  • NSMomentumConvectiveWeakStagnationBCThe convective part (sans pressure term) of the momentum equation boundary integral evaluated at specified stagnation temperature, stagnation pressure, and flow direction values.
  • NSMomentumInviscidNoPressureImplicitFlowBCMomentum equation boundary condition used when pressure is not integrated by parts.
  • NSMomentumInviscidSpecifiedNormalFlowBCMomentum equation boundary condition in which pressure is specified (given) and the value of the convective part is allowed to vary (is computed implicitly).
  • NSMomentumInviscidSpecifiedPressureBCMomentum equation boundary condition in which pressure is specified (given) and the value of the convective part is allowed to vary (is computed implicitly).
  • NSMomentumPressureWeakStagnationBCThis class implements the pressure term of the momentum equation boundary integral for use in weak stagnation boundary conditions.
  • NSMomentumViscousBCThis class corresponds to the viscous part of the 'natural' boundary condition for the momentum equations.
  • NSPenalizedNormalFlowBCThis class penalizes the the value of u.n on the boundary so that it matches some desired value.
  • NSPressureNeumannBCThis kernel is appropriate for use with a 'zero normal flow' boundary condition in the context of the Euler equations.
  • NSStagnationPressureBCThis Dirichlet condition imposes the condition p_0 = p_0_desired.
  • NSStagnationTemperatureBCThis Dirichlet condition imposes the condition T_0 = T_0_desired.
  • NSThermalBCNS thermal BC.
  • Chemical Reactions App
  • ChemicalOutFlowBCChemical flux boundary condition
  • Porous Flow App
  • PorousFlowHalfCubicSinkApplies a flux sink to a boundary. The base flux defined by PorousFlowSink is multiplied by a cubic.
  • PorousFlowHalfGaussianSinkApplies a flux sink to a boundary. The base flux defined by PorousFlowSink is multiplied by a Gaussian.
  • PorousFlowPiecewiseLinearSinkApplies a flux sink to a boundary. The base flux defined by PorousFlowSink is multiplied by a piecewise linear function.
  • PorousFlowSinkApplies a flux sink to a boundary.

Available Subsystems

Available Actions