/
advection_bc.i
98 lines (83 loc) · 1.19 KB
/
advection_bc.i
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[Mesh]
type = GeneratedMesh
dim = 1
xmin = 0
xmax = 10.0
nx = 100
[]
[Variables]
[./phi]
[../]
[]
[AuxVariables]
[./vx]
[../]
[./force]
[../]
[]
[ICs]
[./vx]
type = FunctionIC
variable = vx
function = vx_function
[../]
[./force]
type = FunctionIC
variable = force
function = forcing
[../]
[]
[Kernels]
[./advection]
type = MassConvectiveFlux
variable = phi
vel_x = vx
[../]
[./rhs]
type = CoupledForce
variable = phi
v = force
[../]
[]
[BCs]
[./inflow_enthalpy]
type = DirichletBC
variable = phi
boundary = 'left'
value = 1
[../]
[./outflow_term]
type = AdvectionBC
variable = phi
velocity_vector = 'vx'
boundary = 'right'
[../]
[]
[Functions]
[./vx_function]
type = ParsedFunction
value = '1 + x * x'
[../]
[./forcing]
type = ParsedFunction
value = 'x'
[../]
[./analytical]
type = ParsedFunction
value = '(1 + 0.5 * x * x) / (1 + x * x)'
[../]
[]
[Postprocessors]
[./error]
type = ElementL2Error
variable = phi
function = analytical
[../]
[]
[Executioner]
type = Steady
[]
[Outputs]
exodus = true
perf_graph = true
[]