FunctorErgunDragCoefficients

Material providing linear and quadratic drag coefficients based on the correlation developed by Ergun.

This class implements the Darcy and Forchheimer coefficients for the Ergun drag force model which is discussed in detail in Computation of friction factors and pre-factors. We also give details on the definition of Darcy and Forchheimer coefficients there.

To summarize, this class implements the Darcy coefficient as

$var element = document.getElementById("moose-equation-d218bb39-7348-4764-aafb-cea0dfd5e89d");katex.render("\\frac{150}{D_h^2}", element, {displayMode:true,throwOnError:false});$

where $var element = document.getElementById("moose-equation-0d67cbe6-b17f-4b3d-9bbb-5abfb7b2daf9");katex.render("D_h", element, {displayMode:false,throwOnError:false});$ is the hydraulic diameter defined as $var element = document.getElementById("moose-equation-b79ad1c1-47c5-4a62-81be-7db47f73ceb2");katex.render("\\frac{\\epsilon d_p}{1 - \\epsilon}", element, {displayMode:false,throwOnError:false});$ where $var element = document.getElementById("moose-equation-3c939818-d3d3-4eba-9a5b-f2fcac641591");katex.render("d_p", element, {displayMode:false,throwOnError:false});$ is the diameter of the pebbles in the bed. The Forchheimer coefficient is given as

$var element = document.getElementById("moose-equation-074bbec0-d024-405b-9f66-72f029f55208");katex.render("\\frac{2 \\cdot 1.75}{D_h}", element, {displayMode:true,throwOnError:false});$

where we have made the $var element = document.getElementById("moose-equation-12967895-fb21-4a36-9ee7-2ba4b5f84dbe");katex.render("2(1.75)", element, {displayMode:false,throwOnError:false});$ multiplication explicit, instead of writing $var element = document.getElementById("moose-equation-f2e3d6b1-65a9-4f74-95a7-3aad35ecee84");katex.render("3.5", element, {displayMode:false,throwOnError:false});$ , to make the 1.75 factor from the Ergun wikipedia page more recognizable.

Input Parameters

pebble_diameterPebble diameter
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:Pebble diameter
porosityPorosity. A functor is any of the following: a variable, a functor material property, a function, a postprocessor or a number.
C++ Type:MooseFunctorName
Unit:(no unit assumed)
Controllable:No
Description:Porosity. A functor is any of the following: a variable, a functor material property, a function, a postprocessor or a number.

Required Parameters

Darcy_multiplier1A multiplier to adjust Darcy coefficients
Default:1
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:A multiplier to adjust Darcy coefficients
Forchheimer_multiplier1A multiplier to adjust Forchheimer coefficients
Default:1
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:A multiplier to adjust Forchheimer coefficients
blockThe list of blocks (ids or names) that this object will be applied
C++ Type:std::vector<SubdomainName>
Controllable:No
Description:The list of blocks (ids or names) that this object will be applied
declare_suffixAn optional suffix parameter that can be appended to any declared properties. The suffix will be prepended with a '_' character.
C++ Type:MaterialPropertyName
Unit:(no unit assumed)
Controllable:No
Description:An optional suffix parameter that can be appended to any declared properties. The suffix will be prepended with a '_' character.
execute_onALWAYSThe list of flag(s) indicating when this object should be executed. For a description of each flag, see https://mooseframework.inl.gov/source/interfaces/SetupInterface.html.
Default:ALWAYS
C++ Type:ExecFlagEnum
Options:NONE, INITIAL, LINEAR, LINEAR_CONVERGENCE, NONLINEAR, NONLINEAR_CONVERGENCE, POSTCHECK, TIMESTEP_END, TIMESTEP_BEGIN, MULTIAPP_FIXED_POINT_END, MULTIAPP_FIXED_POINT_BEGIN, MULTIAPP_FIXED_POINT_CONVERGENCE, FINAL, CUSTOM, ALWAYS
Controllable:No
Description:The list of flag(s) indicating when this object should be executed. For a description of each flag, see https://mooseframework.inl.gov/source/interfaces/SetupInterface.html.
rhorhoDensity. A functor is any of the following: a variable, a functor material property, a function, a postprocessor or a number.
Default:rho
C++ Type:MooseFunctorName
Unit:(no unit assumed)
Controllable:No
Description:Density. A functor is any of the following: a variable, a functor material property, a function, a postprocessor or a number.

Optional Parameters

control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector<std::string>
Controllable:No
Description:Adds user-defined labels for accessing object parameters via control logic.
enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Controllable:Yes
Description:Set the enabled status of the MooseObject.
implicitTrueDetermines whether this object is calculated using an implicit or explicit form
Default:True
C++ Type:bool
Controllable:No
Description:Determines whether this object is calculated using an implicit or explicit form
seed0The seed for the master random number generator
Default:0
C++ Type:unsigned int
Controllable:No
Description:The seed for the master random number generator

Advanced Parameters

output_propertiesList of material properties, from this material, to output (outputs must also be defined to an output type)
C++ Type:std::vector<std::string>
Controllable:No
Description:List of material properties, from this material, to output (outputs must also be defined to an output type)
outputsnone Vector of output names where you would like to restrict the output of variables(s) associated with this object
Default:none
C++ Type:std::vector<OutputName>
Controllable:No
Description:Vector of output names where you would like to restrict the output of variables(s) associated with this object

Outputs Parameters

Input Parameters