MassSymmetryValue

MassSymmetryValue[pred,vars,pars]

represents a mass symmetry boundary condition for PDEs with predicate pred indicating where it applies, with model variables vars and global parameters pars.

MassSymmetryValue[pred,vars,pars,lkey]

represents a mass symmetry boundary condition with local parameters specified in pars[lkey].

Details

MassSymmetryValue specifies a boundary condition for MassTransportPDEComponent and is used as part of the modeling equation:

MassSymmetryValue is typically used to model a boundary with mirror symmetry along an axis.

MassSymmetryValue models a boundary with mirror symmetry with dependent variable in [ $TemplateBox[{InterpretationBox[, 1], {"mol", , "/", , {"m", ^, 3}}, moles per meter cubed, {{(, "Moles", )}, /, {(, {"Meters", ^, 3}, )}}}, QuantityTF]$ ], independent variables in [] and time variable in [].
Stationary variables vars are vars={c[x₁,…,x_n],{x₁,…,x_n}}.
Time-dependent variables vars are vars={c[t,x₁,…,x_n],t,{x₁,…,x_n}}.
The non-conservative-time dependent mass transport model MassTransportPDEComponent is based on a convection-diffusion model with mass diffusivity , mass convection velocity vector , mass reaction rate and mass source term :

The conservative time-dependent mass transport model MassTransportPDEComponent is based on a conservative convection-diffusion model given by:

The normal flow velocity on the symmetry boundary will remain at zero at all times.
Both in the conservative and non-conservative forms, MassSymmetryValue with boundary unit normal models:

Model parameters pars as specified for MassTransportPDEComponent.
The following additional model parameters pars can be given:
parameter default symbol

"ModelForm" "NonConservative"
MassSymmetryValue is effectively the same as MassFluxValue with a heat flux of 0.
The boundary predicate pred can be specified as in NeumannValue.
If the MassSymmetryValue depends on parameters that are specified in the association pars as …,keyp_i…,p_iv_i,…], the parameters are replaced with .