Radiation Blocked by a Disc (Steady-State Analysis)examples|products|Murata Software Co., Ltd.

Example16 Radiation Blocked by a Disc (Steady-State Analysis)

General

  • A disc is inserted in a space created by two plates.The heat radiation from a plate to the other is blocked by the disc.
     

  • The temperature distribution and the heat flux vectors are solved.
     

  • Unless specified in the list below, the default conditions will be applied.
     

 

Analysis Space

Item

Settings

Analysis Space

3D

Model unit

mm

 

Analysis Conditions

Item

Settings

Solvers

Thermal Analysis [Watt]

Analysis Type

Steady-state analysis

Options

N/A

 

Model

A disc is placed in between two plates.

The temperature of the bottom face of the lower plate is fixed at 1000[deg]. The top face of the upper plate is set with natural convection.

How the disc affects the radiation is analyzed.

Body Attributes and Materials

Body Number/Type

Body Attribute Name

Material Name

0/Solid

Body_Attribute_001

008_Cu

1/Solid

Body_Attribute_003

002_Polycarbonate(PC)

2/Solid

Body_Attribute_002

002_Polycarbonate(PC)

Boundary Conditions

The boundary conditions are set as follows:

Boundary Condition Name/Topology

Tab

Boundary Condition Type

Settings

Radiation/Face

Thermal

Body-to-body radiation

Radiation rate: 0.5
Group Number : 1

Ambient temperature out of the radiation group: 25[deg]

Radiation2/Face

Thermal

Body-to-body radiation

Radiation rate: 0.99
Group Number : 1

Ambient temperature out of the radiation group: 25[deg]

HighTemperatureWall/Face

Thermal

Temperature

1000[deg]

0/Face

Thermal

Temperature

0[deg]

NaturalConvection/Face

Thermal

Heat Transfer/Ambient Radiation

Natural convection (automatic calculation)

Room temperature 25[deg]

Results

The diagram below shows the temperature distribution of the upper plate.

The other bodies are hidden for the results display, and “Exclude hidden bodies” is selected at Minimum/Maximum Values on the Contour tab of Graphics Setup.

 

 

The center area is around 260[deg] whereas the other area is over 400[deg].

The disc is blocking the heat radiation.

 

The plot below indicates the temperature across the two points: (5, 0, 5) and (5, 10,5).