Create Resistance Material for the Baffle
To open the Material quick edit dialog, click Edit from the Materials context menu:
Type = Resistance
On the Material line, Click Edit...
Enter the name Baffle in the Name field.
Select My Materials from the Save to database menu.
Click the Through-Flow K button
Variation Method = Free Area Ratio
Value = 0.25
Click Apply.
Click the Normal direction 1 K button
Variation Method = Free Area Ratio
Value = 0.
Click Apply.
Click the Normal direction 2 K button
Variation Method = Free Area Ratio
Value = 0.
Click Apply.
Click the Conductivity button.
Value = 0.2 W/mm-K
Click Apply.
Click Save.
Click OK.
For more about Distributed Resistance Materials