{"id":163369,"date":"2021-10-25T17:52:02","date_gmt":"2021-10-25T17:52:02","guid":{"rendered":"\/forum\/forums\/topic\/thermal-em-analysis-in-aedt\/"},"modified":"2021-11-30T17:58:20","modified_gmt":"2021-11-30T17:58:20","slug":"thermal-em-analysis-in-aedt","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/thermal-em-analysis-in-aedt\/","title":{"rendered":"Thermal-EM analysis in AEDT"},"content":{"rendered":"
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I want to run thermal analysis using mechanical feature coupled with HFSS in AEDT. I first run HFSS and use EM loss as a thermal excitation to import EM loss data from HFSS to Thermal module. My model consists of biological tissues, which vary from 37C-40C and electronics, which have a temperature of 24C (also an ambient temp – room temp). <\/p>\n

I have questions regarding the boundaries. <\/p>\n

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  1. My model has multiple layer embedded in each other, mimicking a rat head . I use convection as a boundary for the outermost layer because all faces of this layer are in contact with air. I only know this layer's convection coefficient. Should I also assign convection for the inner layers? <\/li>\n
  2. Is there a way to assign an initial temperature for the components? I used temperature as a boundary for the inner layers, but it gave me overlapping issues with EMloss. But using temperature (aka assigning a fixed temp) might not be correct because I expect the temperature to rise as a result of the simulation.<\/li>\n
  3. I included the result of my first attempt below. I think the the temperature map is incorrect. I expected the temperature at the device's site to be 41-42C (based on literature of my project) , and the ambient temp should remain at 24C. The temperature inside the tissues is also too high. <\/li>\n<\/ol>\n
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    \n\"Capture2.PNG.jpg\"
    \n<\/a><\/p>\n","protected":false},"template":"","class_list":["post-163369","topic","type-topic","status-closed","hentry","topic-tag-ansys-mechanical","topic-tag-co-simulation","topic-tag-hfss","topic-tag-thermal"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t