December 1, 2020 at 6:21 pmRudraishwaryaSubscriberI was trying to conduct thermal analysis of an antenna in Ansys Icepak. I have assigned opening in all the six faces of the airbox. There is no airflow. We will be using chips for the antenna and the chips are the main source of heat in our structure. I have assigned source to a small surface attached to the antenna. I have assigned EM Loss to the aluminium structure of the antenna. But our result doesn't look realistic. Please suggest whether my thermal assignment is right or wrong. Also please let me know whether we can include dielectric in Icepac structure or not?n
December 2, 2020 at 3:37 pmSatyajeet PadhiAnsys EmployeeHi Rudraishwaryanwhat version of Icepak are you using? Is it Icepak in Workbench environment or Icepak in Electronics Desktop environment?nI would recommend you to check the mesh quality and improve the mesh if needed. If there is dielectric in your HFSS simulation, then you would need to include that in the Icepak simulation as well. From your problem description, it seems you are trying to run a natural convection problem. If yes, specify a gravity direction and use laminar for flow turbulence resolution. Provide a small velocity (0.01*g) m/s in the direction opposite to gravity for flow initialization. Add a few temperature monitor points in the model and run the model until you get convergence (residuals go down below a specified threshold and monitor points flatten out). nSatyajeetn
December 3, 2020 at 5:32 pmRudraishwaryaSubscriberI am assigned EM loss to the Aluminium structure. If I include dielectrics, then what thermal assignment will be right for dielectrics? Thanksn
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