Exercise 5

Previous: Chapter 11 | Next: Chapter 12

This exercise teaches how to define the analysis parameters, to start the analysis, and to verify it is running correctly.

1. Right click off the model, and click Solve…

2. On the Control tab, Iterations to Run = 100.

3. On the Physics tab, enable Heat Transfer and Auto Forced Convection. Click Solve.

Note: Auto Forced Convection can reduce the analysis time by 40% by first solving the flow solution and then solving the thermal solution. (This option is not suitable for natural convection problems as the flow and heat transfer are interdependent.)

4. When startup processing is complete and the analysis has started, the solution progress is plotted on the Output Bar of the Convergence Monitor:

5. When this graph appears, right click off the model, expand Global Vector, and click Velocity Vector.

6. Change the view to Outline and confirm that flow is entering through the front of the cabin and exiting at the rear.

Note: The rear is where the pressure boundary conditions were applied.

7. If the vectors do not appear as shown above, right click, and select Solve.... Click Stop in the Solve dialog. Review material assignments, boundary conditions and flow directions, and mesh settings, and fix as necessary.

Note: If you make changes to the set up, you will need to run the analysis again. Set Continue From to 0 before clicking the Solve button.

8. Run the analysis to completion before proceeding to Chapter 12.

Note: The simulation should take approximately 20 minutes to complete, but your time may vary, depending upon your computer.

Note: When the analysis is complete, the Convergence Plot will close, and the last line of the Message Window will be “Analysis completed successfully.”

End of Exercise

Previous: Chapter 11 | Next: Chapter 12

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