# Thermal Properties for U10Mo Fuel

Calculates thermal properties of low enriched uranium-molybdenum alloy

## Description

Low enriched uranium alloyed with 10 wt% (nominally) molybdenum is referred to as U-10Mo.

### Thermal Conductivity

Thermal conductivity k (W/m-K) of U-10Mo, modeled in ThermalU10Mo is from Burkes et al. (2010), with as a porosity correction given in Eq. 2, where it is assumed that : (1) (2) where is the temperature in K and is the porosity.

### Specific Heat Capacity

Specific heat (J/kg-K) of U-10Mo is from Burkes et al. (2010): (3) where is the temperature in K.

## Example Input Syntax

[./fuel_U10Mo]
type = ThermalU10Mo
block = 1
temp = T
porosity = por
density = 1200.0
[../]
(test/tests/thermalTests/thermalU10Mo_P/thermalU10Mo_P.i)

## Input Parameters

• densityThe initial density

C++ Type:double

Description:The initial density

### Required Parameters

• computeTrueWhen false, MOOSE will not call compute methods on this material. The user must call computeProperties() after retrieving the Material via MaterialPropertyInterface::getMaterial(). Non-computed Materials are not sorted for dependencies.

Default:True

C++ Type:bool

Description:When false, MOOSE will not call compute methods on this material. The user must call computeProperties() after retrieving the Material via MaterialPropertyInterface::getMaterial(). Non-computed Materials are not sorted for dependencies.

• tempCoupled Temperature

C++ Type:std::vector

Description:Coupled Temperature

• initial_porosity0The initial porosity

Default:0

C++ Type:double

Description:The initial porosity

• porosityCoupled Porosity

C++ Type:std::vector

Description:Coupled Porosity

• boundaryThe list of boundary IDs from the mesh where this boundary condition applies

C++ Type:std::vector

Description:The list of boundary IDs from the mesh where this boundary condition applies

• blockThe list of block ids (SubdomainID) that this object will be applied

C++ Type:std::vector

Description:The list of block ids (SubdomainID) that this object will be applied

### Optional Parameters

• enableTrueSet the enabled status of the MooseObject.

Default:True

C++ Type:bool

Description:Set the enabled status of the MooseObject.

• 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

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.

• control_tagsAdds user-defined labels for accessing object parameters via control logic.

C++ Type:std::vector

Description:Adds user-defined labels for accessing object parameters via control logic.

• seed0The seed for the master random number generator

Default:0

C++ Type:unsigned int

Description:The seed for the master random number generator

• implicitTrueDetermines whether this object is calculated using an implicit or explicit form

Default:True

C++ Type:bool

Description:Determines whether this object is calculated using an implicit or explicit form

• constant_onNONEWhen ELEMENT, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps.When SUBDOMAIN, MOOSE will only call computeSubdomainProperties() for the 0th quadrature point, and then copy that value to the other qps. Evaluations on element qps will be skipped

Default:NONE

C++ Type:MooseEnum

Description:When ELEMENT, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps.When SUBDOMAIN, MOOSE will only call computeSubdomainProperties() for the 0th quadrature point, and then copy that value to the other qps. Evaluations on element qps will be skipped

• output_propertiesList of material properties, from this material, to output (outputs must also be defined to an output type)

C++ Type:std::vector

Description:List of material properties, from this material, to output (outputs must also be defined to an output type)

• outputsnone Vector of output names were you would like to restrict the output of variables(s) associated with this object

Default:none

C++ Type:std::vector

Description:Vector of output names were you would like to restrict the output of variables(s) associated with this object

## References

1. D. E. Burkes, C. A. Papesch, A. P. Maddison, T. Hartmann, and F. J. Rice. Thermo-physical properties of DU-10 wt. Journal of Nuclear Materials, 403:160 – 166, 2010.[BibTeX]