- gradient_variableThe variable from which to compute the gradient component
C++ Type:std::vector
Description:The variable from which to compute the gradient component
- variableThe name of the variable that this object applies to
C++ Type:AuxVariableName
Description:The name of the variable that this object applies to
VariableGradientComponent
under construction:Undocumented Class
The VariableGradientComponent has not been documented. The content listed below should be used as a starting point for documenting the class, which includes the typical automatic documentation associated with a MooseObject; however, what is contained is ultimately determined by what is necessary to make the documentation clear for users.
# VariableGradientComponent
!syntax description /AuxKernels/VariableGradientComponent
## Overview
!! Replace these lines with information regarding the VariableGradientComponent object.
## Example Input File Syntax
!! Describe and include an example of how to use the VariableGradientComponent object.
!syntax parameters /AuxKernels/VariableGradientComponent
!syntax inputs /AuxKernels/VariableGradientComponent
!syntax children /AuxKernels/VariableGradientComponent
Creates a field with consisting of one component of a coupled variable.
Input Parameters
- blockThe list of block ids (SubdomainID) that this object will be applied
C++ Type:std::vector
Options:
Description:The list of block ids (SubdomainID) that this object will be applied
- boundaryThe list of boundary IDs from the mesh where this boundary condition applies
C++ Type:std::vector
Options:
Description:The list of boundary IDs from the mesh where this boundary condition applies
- componentThe gradient component to compute
C++ Type:MooseEnum
Options:x y z
Description:The gradient component to compute
- execute_onLINEAR TIMESTEP_ENDThe list of flag(s) indicating when this object should be executed, the available options include NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM, PRE_DISPLACE.
Default:LINEAR TIMESTEP_END
C++ Type:ExecFlagEnum
Options:NONE INITIAL LINEAR NONLINEAR TIMESTEP_END TIMESTEP_BEGIN FINAL CUSTOM PRE_DISPLACE
Description:The list of flag(s) indicating when this object should be executed, the available options include NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM, PRE_DISPLACE.
Optional Parameters
- control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector
Options:
Description:Adds user-defined labels for accessing object parameters via control logic.
- enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Options:
Description:Set the enabled status of the MooseObject.
- seed0The seed for the master random number generator
Default:0
C++ Type:unsigned int
Options:
Description:The seed for the master random number generator
- use_displaced_meshFalseWhether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.
Default:False
C++ Type:bool
Options:
Description:Whether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.
Advanced Parameters
Input Files
- test/tests/auxkernels/grad_component/grad_component_monomial.i
- modules/navier_stokes/test/tests/ins/mms/supg/supg_adv_dominated_mms.i
- modules/navier_stokes/test/tests/scalar_adr/supg/advection_error_testing.i
- modules/navier_stokes/test/tests/ins/mms/supg/supg_mms_test.i
- modules/navier_stokes/test/tests/ins/mms/pspg/pspg_mms_test.i
- test/tests/auxkernels/grad_component/grad_component.i
- modules/navier_stokes/test/tests/ins/mms/supg/supg_pspg_adv_dominated_mms.i
- modules/navier_stokes/test/tests/scalar_adr/supg/2d_advection_error_testing.i
test/tests/auxkernels/grad_component/grad_component_monomial.i
[Mesh]
type = GeneratedMesh
dim = 2
xmax = 2
nx = 20
ny = 10
[]
[Variables]
[./not_u]
[../]
[]
[AuxVariables]
[./u]
family = MONOMIAL
order = FIRST
[../]
[./grad_u_x]
order = CONSTANT
family = MONOMIAL
[../]
[]
[ICs]
[./u]
type = FunctionIC
variable = u
function = 'if(x>0.5,if(x<1.5,2*x,3),0)'
[../]
[]
[AuxKernels]
[./grad_u_x_aux]
type = VariableGradientComponent
variable = grad_u_x
component = x
gradient_variable = u
execute_on = initial
[../]
[]
[Problem]
type = FEProblem
solve = false
kernel_coverage_check = false
[]
[Executioner]
type = Steady
[]
[Outputs]
exodus = true
[]
modules/navier_stokes/test/tests/ins/mms/supg/supg_adv_dominated_mms.i
mu=1.5e-2
rho=2.5
[GlobalParams]
gravity = '0 0 0'
supg = true
convective_term = true
integrate_p_by_parts = false
transient_term = true
laplace = true
u = vel_x
v = vel_y
p = p
alpha = 1e0
order = SECOND
family = LAGRANGE
[]
[Mesh]
[gen]
type = GeneratedMeshGenerator
dim = 2
xmin = 0
xmax = 1.0
ymin = 0
ymax = 1.0
elem_type = QUAD9
nx = 4
ny = 4
[]
[./corner_node]
type = ExtraNodesetGenerator
new_boundary = 'pinned_node'
nodes = '0'
input = gen
[../]
[]
[Variables]
[./vel_x]
[../]
[./vel_y]
[../]
[./p]
order = FIRST
[../]
[]
[Kernels]
# mass
[./mass]
type = INSMass
variable = p
[../]
[./x_time]
type = INSMomentumTimeDerivative
variable = vel_x
[../]
[./y_time]
type = INSMomentumTimeDerivative
variable = vel_y
[../]
# x-momentum, space
[./x_momentum_space]
type = INSMomentumLaplaceForm
variable = vel_x
component = 0
forcing_func = vel_x_source_func
[../]
# y-momentum, space
[./y_momentum_space]
type = INSMomentumLaplaceForm
variable = vel_y
component = 1
forcing_func = vel_y_source_func
[../]
[./p_source]
type = BodyForce
function = p_source_func
variable = p
[../]
[]
[BCs]
[./vel_x]
type = FunctionDirichletBC
boundary = 'left right top bottom'
function = vel_x_func
variable = vel_x
[../]
[./vel_y]
type = FunctionDirichletBC
boundary = 'left right top bottom'
function = vel_y_func
variable = vel_y
[../]
[./p]
type = FunctionDirichletBC
boundary = 'left right top bottom'
function = p_func
variable = p
[../]
[]
[Functions]
[./vel_x_source_func]
type = ParsedFunction
value = '-${mu}*(-0.028*pi^2*x^2*sin(0.2*pi*x*y) - 0.028*pi^2*y^2*sin(0.2*pi*x*y) - 0.1*pi^2*sin(0.5*pi*x) - 0.4*pi^2*sin(pi*y)) + ${rho}*(0.14*pi*x*cos(0.2*pi*x*y) + 0.4*pi*cos(pi*y))*(0.6*sin(0.8*pi*x) + 0.3*sin(0.3*pi*y) + 0.2*sin(0.3*pi*x*y) + 0.3) + ${rho}*(0.14*pi*y*cos(0.2*pi*x*y) + 0.2*pi*cos(0.5*pi*x))*(0.4*sin(0.5*pi*x) + 0.4*sin(pi*y) + 0.7*sin(0.2*pi*x*y) + 0.5) + 0.1*pi*y*cos(0.2*pi*x*y) + 0.25*pi*cos(0.5*pi*x)'
[../]
[./vel_y_source_func]
type = ParsedFunction
value = '-${mu}*(-0.018*pi^2*x^2*sin(0.3*pi*x*y) - 0.018*pi^2*y^2*sin(0.3*pi*x*y) - 0.384*pi^2*sin(0.8*pi*x) - 0.027*pi^2*sin(0.3*pi*y)) + ${rho}*(0.06*pi*x*cos(0.3*pi*x*y) + 0.09*pi*cos(0.3*pi*y))*(0.6*sin(0.8*pi*x) + 0.3*sin(0.3*pi*y) + 0.2*sin(0.3*pi*x*y) + 0.3) + ${rho}*(0.06*pi*y*cos(0.3*pi*x*y) + 0.48*pi*cos(0.8*pi*x))*(0.4*sin(0.5*pi*x) + 0.4*sin(pi*y) + 0.7*sin(0.2*pi*x*y) + 0.5) + 0.1*pi*x*cos(0.2*pi*x*y) + 0.3*pi*cos(0.3*pi*y)'
[../]
[./p_source_func]
type = ParsedFunction
value = '-0.06*pi*x*cos(0.3*pi*x*y) - 0.14*pi*y*cos(0.2*pi*x*y) - 0.2*pi*cos(0.5*pi*x) - 0.09*pi*cos(0.3*pi*y)'
[../]
[./vel_x_func]
type = ParsedFunction
value = '0.4*sin(0.5*pi*x) + 0.4*sin(pi*y) + 0.7*sin(0.2*pi*x*y) + 0.5'
[../]
[./vel_y_func]
type = ParsedFunction
value = '0.6*sin(0.8*pi*x) + 0.3*sin(0.3*pi*y) + 0.2*sin(0.3*pi*x*y) + 0.3'
[../]
[./p_func]
type = ParsedFunction
value = '0.5*sin(0.5*pi*x) + 1.0*sin(0.3*pi*y) + 0.5*sin(0.2*pi*x*y) + 0.5'
[../]
[./vxx_func]
type = ParsedFunction
value = '0.14*pi*y*cos(0.2*pi*x*y) + 0.2*pi*cos(0.5*pi*x)'
[../]
[]
[Materials]
[./const]
type = GenericConstantMaterial
block = 0
prop_names = 'rho mu'
prop_values = '${rho} ${mu}'
[../]
[]
[Preconditioning]
[./SMP]
type = SMP
full = true
solve_type = 'NEWTON'
[../]
[]
[Executioner]
type = Transient
num_steps = 10
petsc_options = '-snes_converged_reason -ksp_converged_reason'
petsc_options_iname = '-pc_type -pc_factor_shift_type'
petsc_options_value = 'lu NONZERO'
line_search = 'none'
nl_rel_tol = 1e-8
nl_abs_tol = 1e-14
nl_max_its = 10
l_tol = 1e-6
l_max_its = 10
[./TimeStepper]
dt = .05
type = IterationAdaptiveDT
cutback_factor = 0.4
growth_factor = 1.2
optimal_iterations = 20
[../]
[]
[Outputs]
execute_on = 'final'
[./exodus]
type = Exodus
[../]
[./csv]
type = CSV
[../]
[]
[Postprocessors]
[./L2vel_x]
type = ElementL2Error
variable = vel_x
function = vel_x_func
outputs = 'console csv'
execute_on = 'timestep_end'
[../]
[./L2vel_y]
variable = vel_y
function = vel_y_func
type = ElementL2Error
outputs = 'console csv'
execute_on = 'timestep_end'
[../]
[./L2p]
variable = p
function = p_func
type = ElementL2Error
outputs = 'console csv'
execute_on = 'timestep_end'
[../]
[./L2vxx]
variable = vxx
function = vxx_func
type = ElementL2Error
outputs = 'console csv'
execute_on = 'timestep_end'
[../]
[]
[AuxVariables]
[./vxx]
family = MONOMIAL
order = FIRST
[../]
[]
[AuxKernels]
[./vxx]
type = VariableGradientComponent
component = x
variable = vxx
gradient_variable = vel_x
[../]
[]
modules/navier_stokes/test/tests/scalar_adr/supg/advection_error_testing.i
velocity=1
[GlobalParams]
u = ${velocity}
p = 0
tau_type = mod
[]
[Mesh]
type = GeneratedMesh
dim = 1
nx = 4
xmax = 1
elem_type = EDGE2
[]
[Variables]
[./c]
family = LAGRANGE
order = FIRST
[../]
[]
[Kernels]
[./adv]
type = Advection
variable = c
forcing_func = 'ffn'
[../]
[]
[BCs]
[./left]
type = DirichletBC
variable = c
boundary = left
value = 0
[../]
[]
[Materials]
[./mat]
type = GenericConstantMaterial
prop_names = 'mu rho'
prop_values = '0 1'
[../]
[]
[Functions]
[./ffn]
type = ParsedFunction
value = '1-x^2'
[../]
[./c_func]
type = ParsedFunction
value = 'x-x^3/3'
[../]
[]
[Executioner]
type = Steady
petsc_options_iname = '-pc_type -pc_factor_shift_type'
petsc_options_value = 'lu NONZERO'
[]
[Outputs]
[./exodus]
type = Exodus
[../]
[./csv]
type = CSV
[../]
[]
[Postprocessors]
[./L2c]
type = ElementL2Error
variable = c
function = c_func
outputs = 'console csv'
execute_on = 'timestep_end'
[../]
[./L2cx]
type = ElementL2Error
variable = cx
function = ffn
outputs = 'console csv'
execute_on = 'timestep_end'
[../]
[]
[AuxVariables]
[./cx]
family = MONOMIAL
order = FIRST
[../]
[]
[AuxKernels]
[./cx]
type = VariableGradientComponent
component = x
variable = cx
gradient_variable = c
[../]
[]
modules/navier_stokes/test/tests/ins/mms/supg/supg_mms_test.i
mu=1.5
rho=2.5
[GlobalParams]
gravity = '0 0 0'
supg = true
convective_term = true
integrate_p_by_parts = false
laplace = true
u = vel_x
v = vel_y
p = p
alpha = 1
order = SECOND
family = LAGRANGE
[]
[Mesh]
[gen]
type = GeneratedMeshGenerator
dim = 2
xmin = 0
xmax = 1.0
ymin = 0
ymax = 1.0
elem_type = QUAD9
nx = 4
ny = 4
[]
[./corner_node]
type = ExtraNodesetGenerator
new_boundary = 'pinned_node'
nodes = '0'
input = gen
[../]
[]
[Variables]
[./vel_x]
[../]
[./vel_y]
[../]
[./p]
order = FIRST
[../]
[]
[Kernels]
# mass
[./mass]
type = INSMass
variable = p
[../]
# x-momentum, space
[./x_momentum_space]
type = INSMomentumLaplaceForm
variable = vel_x
component = 0
forcing_func = vel_x_source_func
[../]
# y-momentum, space
[./y_momentum_space]
type = INSMomentumLaplaceForm
variable = vel_y
component = 1
forcing_func = vel_y_source_func
[../]
[./p_source]
type = BodyForce
function = p_source_func
variable = p
[../]
[]
[BCs]
[./vel_x]
type = FunctionDirichletBC
preset = false
boundary = 'left right top bottom'
function = vel_x_func
variable = vel_x
[../]
[./vel_y]
type = FunctionDirichletBC
preset = false
boundary = 'left right top bottom'
function = vel_y_func
variable = vel_y
[../]
[./p]
type = FunctionDirichletBC
preset = false
boundary = 'left right top bottom'
function = p_func
variable = p
[../]
[]
[Functions]
[./vel_x_source_func]
type = ParsedFunction
value = '-${mu}*(-0.028*pi^2*x^2*sin(0.2*pi*x*y) - 0.028*pi^2*y^2*sin(0.2*pi*x*y) - 0.1*pi^2*sin(0.5*pi*x) - 0.4*pi^2*sin(pi*y)) + ${rho}*(0.14*pi*x*cos(0.2*pi*x*y) + 0.4*pi*cos(pi*y))*(0.6*sin(0.8*pi*x) + 0.3*sin(0.3*pi*y) + 0.2*sin(0.3*pi*x*y) + 0.3) + ${rho}*(0.14*pi*y*cos(0.2*pi*x*y) + 0.2*pi*cos(0.5*pi*x))*(0.4*sin(0.5*pi*x) + 0.4*sin(pi*y) + 0.7*sin(0.2*pi*x*y) + 0.5) + 0.1*pi*y*cos(0.2*pi*x*y) + 0.25*pi*cos(0.5*pi*x)'
[../]
[./vel_y_source_func]
type = ParsedFunction
value = '-${mu}*(-0.018*pi^2*x^2*sin(0.3*pi*x*y) - 0.018*pi^2*y^2*sin(0.3*pi*x*y) - 0.384*pi^2*sin(0.8*pi*x) - 0.027*pi^2*sin(0.3*pi*y)) + ${rho}*(0.06*pi*x*cos(0.3*pi*x*y) + 0.09*pi*cos(0.3*pi*y))*(0.6*sin(0.8*pi*x) + 0.3*sin(0.3*pi*y) + 0.2*sin(0.3*pi*x*y) + 0.3) + ${rho}*(0.06*pi*y*cos(0.3*pi*x*y) + 0.48*pi*cos(0.8*pi*x))*(0.4*sin(0.5*pi*x) + 0.4*sin(pi*y) + 0.7*sin(0.2*pi*x*y) + 0.5) + 0.1*pi*x*cos(0.2*pi*x*y) + 0.3*pi*cos(0.3*pi*y)'
[../]
[./p_source_func]
type = ParsedFunction
value = '-0.06*pi*x*cos(0.3*pi*x*y) - 0.14*pi*y*cos(0.2*pi*x*y) - 0.2*pi*cos(0.5*pi*x) - 0.09*pi*cos(0.3*pi*y)'
[../]
[./vel_x_func]
type = ParsedFunction
value = '0.4*sin(0.5*pi*x) + 0.4*sin(pi*y) + 0.7*sin(0.2*pi*x*y) + 0.5'
[../]
[./vel_y_func]
type = ParsedFunction
value = '0.6*sin(0.8*pi*x) + 0.3*sin(0.3*pi*y) + 0.2*sin(0.3*pi*x*y) + 0.3'
[../]
[./p_func]
type = ParsedFunction
value = '0.5*sin(0.5*pi*x) + 1.0*sin(0.3*pi*y) + 0.5*sin(0.2*pi*x*y) + 0.5'
[../]
[./vxx_func]
type = ParsedFunction
value = '0.14*pi*y*cos(0.2*pi*x*y) + 0.2*pi*cos(0.5*pi*x)'
[../]
[]
[Materials]
[./const]
type = GenericConstantMaterial
block = 0
prop_names = 'rho mu'
prop_values = '${rho} ${mu}'
[../]
[]
[Preconditioning]
[./SMP]
type = SMP
full = true
solve_type = 'NEWTON'
[../]
[]
[Executioner]
type = Steady
petsc_options = '-snes_converged_reason -ksp_converged_reason'
petsc_options_iname = '-pc_type -pc_factor_shift_type'
petsc_options_value = 'lu NONZERO'
line_search = 'none'
nl_rel_tol = 1e-12
nl_abs_tol = 1e-13
nl_max_its = 6
l_tol = 1e-6
l_max_its = 500
[]
[Outputs]
[./exodus]
type = Exodus
[../]
[./csv]
type = CSV
[../]
[]
[Postprocessors]
[./L2vel_x]
type = ElementL2Error
variable = vel_x
function = vel_x_func
outputs = 'console csv'
execute_on = 'timestep_end'
[../]
[./L2vel_y]
variable = vel_y
function = vel_y_func
type = ElementL2Error
outputs = 'console csv'
execute_on = 'timestep_end'
[../]
[./L2p]
variable = p
function = p_func
type = ElementL2Error
outputs = 'console csv'
execute_on = 'timestep_end'
[../]
[./L2vxx]
variable = vxx
function = vxx_func
type = ElementL2Error
outputs = 'console csv'
execute_on = 'timestep_end'
[../]
[]
[AuxVariables]
[./vxx]
family = MONOMIAL
order = FIRST
[../]
[]
[AuxKernels]
[./vxx]
type = VariableGradientComponent
component = x
variable = vxx
gradient_variable = vel_x
[../]
[]
modules/navier_stokes/test/tests/ins/mms/pspg/pspg_mms_test.i
mu=1.5
rho=2.5
[GlobalParams]
gravity = '0 0 0'
pspg = true
convective_term = true
integrate_p_by_parts = true
laplace = true
u = vel_x
v = vel_y
p = p
alpha = 1e-6
order = FIRST
family = LAGRANGE
[]
[Mesh]
[gen]
type = GeneratedMeshGenerator
dim = 2
xmin = 0
xmax = 1.0
ymin = 0
ymax = 1.0
elem_type = QUAD9
nx = 4
ny = 4
[]
[./corner_node]
type = ExtraNodesetGenerator
new_boundary = 'pinned_node'
nodes = '0'
input = gen
[../]
[]
[Variables]
[./vel_x]
[../]
[./vel_y]
[../]
[./p]
[../]
[]
[Kernels]
# mass
[./mass]
type = INSMass
variable = p
x_vel_forcing_func = vel_x_source_func
y_vel_forcing_func = vel_y_source_func
[../]
# x-momentum, space
[./x_momentum_space]
type = INSMomentumLaplaceForm
variable = vel_x
component = 0
forcing_func = vel_x_source_func
[../]
# y-momentum, space
[./y_momentum_space]
type = INSMomentumLaplaceForm
variable = vel_y
component = 1
forcing_func = vel_y_source_func
[../]
[./p_source]
type = BodyForce
function = p_source_func
variable = p
[../]
[]
[BCs]
[./vel_x]
type = FunctionDirichletBC
boundary = 'left right top bottom'
function = vel_x_func
variable = vel_x
[../]
[./vel_y]
type = FunctionDirichletBC
boundary = 'left right top bottom'
function = vel_y_func
variable = vel_y
[../]
[./p]
type = FunctionDirichletBC
boundary = 'left right top bottom'
function = p_func
variable = p
[../]
[]
[Functions]
[./vel_x_source_func]
type = ParsedFunction
value = '-${mu}*(-0.028*pi^2*x^2*sin(0.2*pi*x*y) - 0.028*pi^2*y^2*sin(0.2*pi*x*y) - 0.1*pi^2*sin(0.5*pi*x) - 0.4*pi^2*sin(pi*y)) + ${rho}*(0.14*pi*x*cos(0.2*pi*x*y) + 0.4*pi*cos(pi*y))*(0.6*sin(0.8*pi*x) + 0.3*sin(0.3*pi*y) + 0.2*sin(0.3*pi*x*y) + 0.3) + ${rho}*(0.14*pi*y*cos(0.2*pi*x*y) + 0.2*pi*cos(0.5*pi*x))*(0.4*sin(0.5*pi*x) + 0.4*sin(pi*y) + 0.7*sin(0.2*pi*x*y) + 0.5) + 0.1*pi*y*cos(0.2*pi*x*y) + 0.25*pi*cos(0.5*pi*x)'
[../]
[./vel_y_source_func]
type = ParsedFunction
value = '-${mu}*(-0.018*pi^2*x^2*sin(0.3*pi*x*y) - 0.018*pi^2*y^2*sin(0.3*pi*x*y) - 0.384*pi^2*sin(0.8*pi*x) - 0.027*pi^2*sin(0.3*pi*y)) + ${rho}*(0.06*pi*x*cos(0.3*pi*x*y) + 0.09*pi*cos(0.3*pi*y))*(0.6*sin(0.8*pi*x) + 0.3*sin(0.3*pi*y) + 0.2*sin(0.3*pi*x*y) + 0.3) + ${rho}*(0.06*pi*y*cos(0.3*pi*x*y) + 0.48*pi*cos(0.8*pi*x))*(0.4*sin(0.5*pi*x) + 0.4*sin(pi*y) + 0.7*sin(0.2*pi*x*y) + 0.5) + 0.1*pi*x*cos(0.2*pi*x*y) + 0.3*pi*cos(0.3*pi*y)'
[../]
[./p_source_func]
type = ParsedFunction
value = '-0.06*pi*x*cos(0.3*pi*x*y) - 0.14*pi*y*cos(0.2*pi*x*y) - 0.2*pi*cos(0.5*pi*x) - 0.09*pi*cos(0.3*pi*y)'
[../]
[./vel_x_func]
type = ParsedFunction
value = '0.4*sin(0.5*pi*x) + 0.4*sin(pi*y) + 0.7*sin(0.2*pi*x*y) + 0.5'
[../]
[./vel_y_func]
type = ParsedFunction
value = '0.6*sin(0.8*pi*x) + 0.3*sin(0.3*pi*y) + 0.2*sin(0.3*pi*x*y) + 0.3'
[../]
[./p_func]
type = ParsedFunction
value = '0.5*sin(0.5*pi*x) + 1.0*sin(0.3*pi*y) + 0.5*sin(0.2*pi*x*y) + 0.5'
[../]
[./vxx_func]
type = ParsedFunction
value = '0.14*pi*y*cos(0.2*pi*x*y) + 0.2*pi*cos(0.5*pi*x)'
[../]
[./px_func]
type = ParsedFunction
value = '0.1*pi*y*cos(0.2*pi*x*y) + 0.25*pi*cos(0.5*pi*x)'
[../]
[]
[Materials]
[./const]
type = GenericConstantMaterial
block = 0
prop_names = 'rho mu'
prop_values = '${rho} ${mu}'
[../]
[]
[Preconditioning]
[./SMP]
type = SMP
full = true
solve_type = 'NEWTON'
[../]
[]
[Executioner]
type = Steady
petsc_options = '-snes_converged_reason -ksp_converged_reason'
petsc_options_iname = '-pc_type -pc_factor_shift_type'
petsc_options_value = 'lu NONZERO'
line_search = 'none'
nl_rel_tol = 1e-12
nl_abs_tol = 1e-13
nl_max_its = 6
l_tol = 1e-6
l_max_its = 500
[]
[Outputs]
[./exodus]
type = Exodus
[../]
[./csv]
type = CSV
[../]
[]
[Postprocessors]
[./L2vel_x]
type = ElementL2Error
variable = vel_x
function = vel_x_func
outputs = 'console csv'
execute_on = 'timestep_end'
[../]
[./L2vel_y]
variable = vel_y
function = vel_y_func
type = ElementL2Error
outputs = 'console csv'
execute_on = 'timestep_end'
[../]
[./L2p]
variable = p
function = p_func
type = ElementL2Error
outputs = 'console csv'
execute_on = 'timestep_end'
[../]
[./L2vxx]
variable = vxx
function = vxx_func
type = ElementL2Error
outputs = 'console csv'
execute_on = 'timestep_end'
[../]
[./L2px]
variable = px
function = px_func
type = ElementL2Error
outputs = 'console csv'
execute_on = 'timestep_end'
[../]
[]
[AuxVariables]
[./vxx]
family = MONOMIAL
order = FIRST
[../]
[./px]
family = MONOMIAL
order = FIRST
[../]
[]
[AuxKernels]
[./vxx]
type = VariableGradientComponent
component = x
variable = vxx
gradient_variable = vel_x
[../]
[./px]
type = VariableGradientComponent
component = x
variable = px
gradient_variable = p
[../]
[]
test/tests/auxkernels/grad_component/grad_component.i
[Mesh]
type = GeneratedMesh
dim = 2
nx = 10
ny = 10
[]
[Variables]
[./u]
[../]
[]
[AuxVariables]
[./grad_u_x]
order = CONSTANT
family = MONOMIAL
[../]
[./grad_u_y]
order = CONSTANT
family = MONOMIAL
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[]
[AuxKernels]
[./grad_u_x_aux]
type = VariableGradientComponent
variable = grad_u_x
component = x
gradient_variable = u
[../]
[./grad_u_y_aux]
type = VariableGradientComponent
variable = grad_u_y
component = y
gradient_variable = u
[../]
[]
[BCs]
[./left]
type = DirichletBC
variable = u
boundary = left
value = 0
[../]
[./right]
type = DirichletBC
variable = u
boundary = right
value = 1
[../]
[]
[Executioner]
type = Steady
solve_type = PJFNK
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
[]
[Outputs]
exodus = true
[]
modules/navier_stokes/test/tests/ins/mms/supg/supg_pspg_adv_dominated_mms.i
mu=1.5e-4
rho=2.5
[GlobalParams]
gravity = '0 0 0'
supg = true
pspg = true
convective_term = true
integrate_p_by_parts = false
transient_term = true
laplace = true
u = vel_x
v = vel_y
p = p
alpha = 1e0
order = FIRST
family = LAGRANGE
[]
[Mesh]
[gen]
type = GeneratedMeshGenerator
dim = 2
xmin = 0
xmax = 1.0
ymin = 0
ymax = 1.0
elem_type = QUAD9
nx = 4
ny = 4
[]
[./corner_node]
type = ExtraNodesetGenerator
new_boundary = 'pinned_node'
nodes = '0'
input = gen
[../]
[]
[Variables]
[./vel_x]
[../]
[./vel_y]
[../]
[./p]
order = FIRST
[../]
[]
[Kernels]
# mass
[./mass]
type = INSMass
variable = p
x_vel_forcing_func = vel_x_source_func
y_vel_forcing_func = vel_y_source_func
[../]
[./x_time]
type = INSMomentumTimeDerivative
variable = vel_x
[../]
[./y_time]
type = INSMomentumTimeDerivative
variable = vel_y
[../]
# x-momentum, space
[./x_momentum_space]
type = INSMomentumLaplaceForm
variable = vel_x
component = 0
forcing_func = vel_x_source_func
[../]
# y-momentum, space
[./y_momentum_space]
type = INSMomentumLaplaceForm
variable = vel_y
component = 1
forcing_func = vel_y_source_func
[../]
[./p_source]
type = BodyForce
function = p_source_func
variable = p
[../]
[]
[BCs]
[./vel_x]
type = FunctionDirichletBC
boundary = 'left right top bottom'
function = vel_x_func
variable = vel_x
[../]
[./vel_y]
type = FunctionDirichletBC
boundary = 'left right top bottom'
function = vel_y_func
variable = vel_y
[../]
[./p]
type = FunctionDirichletBC
boundary = 'left right top bottom'
function = p_func
variable = p
[../]
[]
[Functions]
[./vel_x_source_func]
type = ParsedFunction
value = '-${mu}*(-0.028*pi^2*x^2*sin(0.2*pi*x*y) - 0.028*pi^2*y^2*sin(0.2*pi*x*y) - 0.1*pi^2*sin(0.5*pi*x) - 0.4*pi^2*sin(pi*y)) + ${rho}*(0.14*pi*x*cos(0.2*pi*x*y) + 0.4*pi*cos(pi*y))*(0.6*sin(0.8*pi*x) + 0.3*sin(0.3*pi*y) + 0.2*sin(0.3*pi*x*y) + 0.3) + ${rho}*(0.14*pi*y*cos(0.2*pi*x*y) + 0.2*pi*cos(0.5*pi*x))*(0.4*sin(0.5*pi*x) + 0.4*sin(pi*y) + 0.7*sin(0.2*pi*x*y) + 0.5) + 0.1*pi*y*cos(0.2*pi*x*y) + 0.25*pi*cos(0.5*pi*x)'
[../]
[./vel_y_source_func]
type = ParsedFunction
value = '-${mu}*(-0.018*pi^2*x^2*sin(0.3*pi*x*y) - 0.018*pi^2*y^2*sin(0.3*pi*x*y) - 0.384*pi^2*sin(0.8*pi*x) - 0.027*pi^2*sin(0.3*pi*y)) + ${rho}*(0.06*pi*x*cos(0.3*pi*x*y) + 0.09*pi*cos(0.3*pi*y))*(0.6*sin(0.8*pi*x) + 0.3*sin(0.3*pi*y) + 0.2*sin(0.3*pi*x*y) + 0.3) + ${rho}*(0.06*pi*y*cos(0.3*pi*x*y) + 0.48*pi*cos(0.8*pi*x))*(0.4*sin(0.5*pi*x) + 0.4*sin(pi*y) + 0.7*sin(0.2*pi*x*y) + 0.5) + 0.1*pi*x*cos(0.2*pi*x*y) + 0.3*pi*cos(0.3*pi*y)'
[../]
[./p_source_func]
type = ParsedFunction
value = '-0.06*pi*x*cos(0.3*pi*x*y) - 0.14*pi*y*cos(0.2*pi*x*y) - 0.2*pi*cos(0.5*pi*x) - 0.09*pi*cos(0.3*pi*y)'
[../]
[./vel_x_func]
type = ParsedFunction
value = '0.4*sin(0.5*pi*x) + 0.4*sin(pi*y) + 0.7*sin(0.2*pi*x*y) + 0.5'
[../]
[./vel_y_func]
type = ParsedFunction
value = '0.6*sin(0.8*pi*x) + 0.3*sin(0.3*pi*y) + 0.2*sin(0.3*pi*x*y) + 0.3'
[../]
[./p_func]
type = ParsedFunction
value = '0.5*sin(0.5*pi*x) + 1.0*sin(0.3*pi*y) + 0.5*sin(0.2*pi*x*y) + 0.5'
[../]
[./vxx_func]
type = ParsedFunction
value = '0.14*pi*y*cos(0.2*pi*x*y) + 0.2*pi*cos(0.5*pi*x)'
[../]
[]
[Materials]
[./const]
type = GenericConstantMaterial
block = 0
prop_names = 'rho mu'
prop_values = '${rho} ${mu}'
[../]
[]
[Preconditioning]
[./SMP]
type = SMP
full = true
solve_type = 'NEWTON'
[../]
[]
[Executioner]
petsc_options = '-snes_converged_reason -ksp_converged_reason -snes_view'
petsc_options_iname = '-pc_type -pc_factor_shift_type -pc_factor_mat_solver_package'
petsc_options_value = 'lu NONZERO superlu_dist'
line_search = 'none'
nl_rel_tol = 1e-8
nl_abs_tol = 1e-12
nl_max_its = 10
l_tol = 1e-6
l_max_its = 10
# To run to steady-state, set num-steps to some large number (1000000 for example)
type = Transient
num_steps = 10
steady_state_detection = true
steady_state_tolerance = 1e-10
[./TimeStepper]
dt = .1
type = IterationAdaptiveDT
cutback_factor = 0.4
growth_factor = 1.2
optimal_iterations = 20
[../]
[]
[Outputs]
execute_on = 'final'
[./exodus]
type = Exodus
[../]
[./csv]
type = CSV
[../]
[]
[Postprocessors]
[./L2vel_x]
type = ElementL2Error
variable = vel_x
function = vel_x_func
outputs = 'console csv'
execute_on = 'timestep_end'
[../]
[./L2vel_y]
variable = vel_y
function = vel_y_func
type = ElementL2Error
outputs = 'console csv'
execute_on = 'timestep_end'
[../]
[./L2p]
variable = p
function = p_func
type = ElementL2Error
outputs = 'console csv'
execute_on = 'timestep_end'
[../]
[./L2vxx]
variable = vxx
function = vxx_func
type = ElementL2Error
outputs = 'console csv'
execute_on = 'timestep_end'
[../]
[]
[AuxVariables]
[./vxx]
family = MONOMIAL
order = FIRST
[../]
[]
[AuxKernels]
[./vxx]
type = VariableGradientComponent
component = x
variable = vxx
gradient_variable = vel_x
[../]
[]
modules/navier_stokes/test/tests/scalar_adr/supg/2d_advection_error_testing.i
ax=1
ay=1
[GlobalParams]
u = ${ax}
v = ${ay}
p = 0
tau_type = mod
transient_term = true
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 2
ny = 2
xmax = 1
ymax = 1
elem_type = QUAD9
[]
[Variables]
[./c]
family = LAGRANGE
order = SECOND
[../]
[]
[Kernels]
[./adv]
type = Advection
variable = c
forcing_func = 'ffn'
[../]
[]
[BCs]
[./all]
type = FunctionDirichletBC
variable = c
boundary = 'left right top bottom'
function = 'c_func'
[../]
[]
[Materials]
[./mat]
type = GenericConstantMaterial
prop_names = 'mu rho'
prop_values = '0 1'
[../]
[]
[Functions]
[./ffn]
type = ParsedFunction
value = '${ax}*(0.14*pi*y*cos(0.2*pi*x*y) + 0.2*pi*cos(0.5*pi*x)) + ${ay}*(0.14*pi*x*cos(0.2*pi*x*y) + 0.4*pi*cos(pi*y))'
[../]
[./c_func]
type = ParsedFunction
value = '0.4*sin(0.5*pi*x) + 0.4*sin(pi*y) + 0.7*sin(0.2*pi*x*y) + 0.5'
[../]
[./cx_func]
type = ParsedFunction
value = '0.14*pi*y*cos(0.2*pi*x*y) + 0.2*pi*cos(0.5*pi*x)'
[../]
[]
# [Executioner]
# type = Steady
# petsc_options_iname = '-pc_type -pc_factor_shift_type'
# petsc_options_value = 'lu NONZERO'
# []
[Executioner]
type = Transient
num_steps = 10
petsc_options = '-snes_converged_reason -ksp_converged_reason -snes_view'
petsc_options_iname = '-pc_type -pc_factor_shift_type -pc_factor_mat_solver_package'
petsc_options_value = 'lu NONZERO superlu_dist'
line_search = 'none'
nl_rel_tol = 1e-8
nl_abs_tol = 1e-12
nl_max_its = 10
l_tol = 1e-6
l_max_its = 10
[./TimeStepper]
dt = .05
type = IterationAdaptiveDT
cutback_factor = 0.4
growth_factor = 1.2
optimal_iterations = 20
[../]
[]
[Outputs]
[./exodus]
type = Exodus
[../]
[./csv]
type = CSV
[../]
[]
[Postprocessors]
[./L2c]
type = ElementL2Error
variable = c
function = c_func
outputs = 'console csv'
execute_on = 'timestep_end'
[../]
[./L2cx]
type = ElementL2Error
variable = cx
function = cx_func
outputs = 'console csv'
execute_on = 'timestep_end'
[../]
[]
[AuxVariables]
[./cx]
family = MONOMIAL
order = FIRST
[../]
[]
[AuxKernels]
[./cx_aux]
type = VariableGradientComponent
component = x
variable = cx
gradient_variable = c
[../]
[]