Convection

To specify the load Convection, use one of the following methods:

Command Line:

FEMACONVECTION

Main Menu:

AutoFEM | Loads/Restraints | Convection

Icon:

Convective heat transfer is a process of transferring the heat between the surface of a solid body and external environment (gas, liquid).

The load Convection allows the user to specify the amount of heat emitted by the unit surface per unit of time when the temperature difference between the surface and external environment is one degree, that is, specify the heat transfer coefficient.

The load Convection is defined for faces of the model. For selecting faces use the automenu option:

Loads/Restraints on faces

Select all faces

Selected elements are added to the list.

In the properties window of the load Convection it is necessary to specify the following parameters:

heat transfer coefficient;

units: W/m2*C, W/cm2*C, BTU/sec*in2*F;

temperature of external environment (liquid or gas);

units: Kelvin [K], degrees of Celsius [C], degrees of Fahrenheit [F].

In the 3D scene the load Convection is shown in the following way:

A typical sequence for specifying the load Convective heat transfer:

1.Initialize the command "Convection" .

2.Select a face.

3.Specify the heat transfer coefficient and the temperature of the environment.

4.Complete the command.

 

See also: Thermal Analysis

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