Step 2 – Extend
Domain, Create Mesh, Assign material properties to FR4 and solve
Extend the Domain
1. Main Menu: Mesh - Key-Plane Edit - New Key-Plane…
Define Key Planes normal to X direction:
Enter Value for Coordinate: -0.1 and Apply, then 0.2 and Apply
Define Key Planes normal to Y direction:
Enter Value for Coordinate: -0.1 and Apply, then 0.2 and Apply
Define Key Plane normal to Z direction:
Enter Value for Coordinate: 0.1 and Apply
Close
The computational domain is now extended to include
air 10 cm around and 5 cm on top of the enclosure.
2. Main Menu: Mesh – Create Mesh…
This creates an automatic mesh, however, you can alter this mesh to optimize the tradeoff between the speed and accuracy of your model with any of our easy to use Meshing Tools
X-Z view of Model with Mesh shown
3. Main
Menu: Material - User Defined
Click on Othotropic
Enter Conductivity, Kx, Ky and Kz Values: 10, 10, 1
Apply
4. Main Menu:
Analysis: Create Analysis Deck and Run
5. Main
Menu: Analysis - Run Job
This file can be let run until it converges, though
this can be time consuming. But with
Eflo, you can let it run in Full CFD model for a couple of minutes, stop and
save it and then run it in non CFD mode, which is much faster. This gives you more accurate results than
non-CFD, but without the time of full CFD.