{"id":311952,"date":"2023-10-18T05:45:46","date_gmt":"2023-10-18T05:45:46","guid":{"rendered":"\/forum\/forums\/topic\/steady-state-thermal-analysis-simulation-of-led\/"},"modified":"2023-10-18T05:45:46","modified_gmt":"2023-10-18T05:45:46","slug":"steady-state-thermal-analysis-simulation-of-led","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/steady-state-thermal-analysis-simulation-of-led\/","title":{"rendered":"Steady state thermal analysis Simulation of LED"},"content":{"rendered":"

Hi,<\/p>\n

I am performing the simulation of Steady state thermal for A lamp which is illuminated by number of LED’s.<\/p>\n

Providing voluemtric heat generation rate in ANSYS workbench, with Radiation boundary condition to LENS of 0.85 Emissivity.<\/p>\n

What i Found is, the temperature are higher at the middle and then get lowered as they move from center.<\/p>\n

This is quite not understanding as all the LED of same dimensions, volumetric heat flux is same for all the LED.<\/p>\n

Then why temperature contour showing maximum temperature at center and lower temperature at end of domain.<\/p>\n

As it is steady state simulation the Temperature generated by the LED and heat flow should be constant at every instant of geometry. Attached are the images for reference. <\/p>\n

 <\/p>\n

<\/p>\n

As we can see in above image that, LED are generating equal temperature distribution along the thickness. <\/p>\n

<\/p>\n

In above image which on the reflectors, the Temperature rise at middle is at 57.9 and at end its 57.04. Why?<\/p>\n","protected":false},"template":"","class_list":["post-311952","topic","type-topic","status-closed","hentry","topic-tag-thermal-radiation-1","topic-tag-steady-state-thermal","topic-tag-steady-statethermalmodel-1","topic-tag-Steadystatethermalsimulation-1","topic-tag-workbench"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["4770","18096"],"_bbp_author_ip":["23.52.43.88"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["850"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["311952"],"_bbp_forum_id":["27792"],"_bbp_engagement":["4770","18096"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["318144"],"_bbp_last_active_id":["318144"],"_bbp_last_active_time":["2023-11-17 09:43:54"]},"test":"shubcgodrej-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/311952","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/311952\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=311952"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}