Description

Thermal load: heat convection from surface.

Use this for applying a heat flux load on the surface of finite elements, according to the convection model W_per_area = convection_coeff * (T_surface - T_fluid):

#include <ChLoaderHeatConvection.h>

Inheritance diagram for chrono::fea::ChLoaderHeatConvection:

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Collaboration diagram for chrono::fea::ChLoaderHeatConvection:

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Public Member Functions
	ChLoaderHeatConvection (std::shared_ptr< ChLoadableUV > mloadable, std::shared_ptr< ChFieldTemperature > temp_field)

virtual void	ComputeF (double U, double V, ChVectorDynamic<> &F, ChVectorDynamic<> state_x, ChVectorDynamic<> state_w) override
	Evaluate F = F(u,v) for this line load. More...

void	SetSurfaceConvectionCoeff (double convection_coeff)
	Set the convection coefficient of the surface, a, as in the formula W_per_area = Area * a * (T_surface - T_fluid) Units in SI are [W/m²°C], typically a value that depends on the type of fluid and its circulation, ex. More...

double	GetSurfaceConvectionCoeff ()
	Set the convection coefficient of the surface.

void	SetFluidTemperature (double T_env)
	Set the imposed fuid temperature at the external of the surface.

double	GetFluidTemperature ()
	Get the imposed fluid temperature at the external of the surface.

void	SetIntegrationPoints (int val)

virtual int	GetIntegrationPointsU () override

virtual int	GetIntegrationPointsV () override

Public Member Functions inherited from chrono::ChLoaderUVdistributed
	ChLoaderUVdistributed (std::shared_ptr< ChLoadableUV > mloadable)

virtual void	ComputeQ (ChVectorDynamic<> state_x, ChVectorDynamic<> state_w) override
	Compute the generalized load Q = integral (N'FdetJ dudvdz), using the ComputeF method. More...

Public Member Functions inherited from chrono::ChLoaderUV
	ChLoaderUV (std::shared_ptr< ChLoadableUV > mloadable)

void	SetLoadable (std::shared_ptr< ChLoadableUV > mloadable)

virtual std::shared_ptr< ChLoadable >	GetLoadable () override

std::shared_ptr< ChLoadableUV >	GetLoadableUV ()

Public Member Functions inherited from chrono::ChLoader
virtual bool	IsStiff ()

Additional Inherited Members
Public Attributes inherited from chrono::ChLoaderUV
std::shared_ptr< ChLoadableUV >	loadable

Public Attributes inherited from chrono::ChLoader
ChVectorDynamic	Q

Member Function Documentation

◆ ComputeF()

void chrono::fea::ChLoaderHeatConvection::ComputeF	(	double	U,
		double	V,
		ChVectorDynamic<> &	F,
		ChVectorDynamic<> *	state_x,
		ChVectorDynamic<> *	state_w
	)

overridevirtual

Evaluate F = F(u,v) for this line load.

The vector F is set to zero on entry. The function provided by derived classes is called by ComputeQ to perform integration over the domain.

Parameters

U	parametric coordinate in surface
V	parametric coordinate in surface
F	result vector, size = field dim of loadable
state_x	if != 0, update state (pos. part) to this, then evaluate F
state_w	if != 0, update state (speed part) to this, then evaluate F

Implements chrono::ChLoaderUV.

◆ SetSurfaceConvectionCoeff()

void chrono::fea::ChLoaderHeatConvection::SetSurfaceConvectionCoeff ( double convection_coeff )

inline

Set the convection coefficient of the surface, a, as in the formula W_per_area = Area * a * (T_surface - T_fluid) Units in SI are [W/m²°C], typically a value that depends on the type of fluid and its circulation, ex.

Air (Free Convection): 5 to 25, Air(Forced Convection) : 10 to 200, Water(Forced Convection) : 50 to 10000 etc.

The documentation for this class was generated from the following files:

/builds/uwsbel/chrono/src/chrono/fea/ChLoaderHeatConvection.h
/builds/uwsbel/chrono/src/chrono/fea/ChLoaderHeatConvection.cpp

Description

Public Member Functions

Additional Inherited Members

Member Function Documentation

◆ ComputeF()

◆ SetSurfaceConvectionCoeff()