Hi everybody,<\/p>\n
I have a coupled field (CF) simulation with thermal and structural as selected physics.<\/p>\n
Previously I had a transient thermal and a transient structural analysis system linked, with the disadvantage that the structural analysis only started once the thermal analysis was completed. Since I have one material with a very high expansion rate (more than tenfold) I had to “adjust” the lambda values for the expansion I’d expect at a certain temperature.<\/p>\n
Then I tried to use a CF to calculate both physics in each timestep. I thought I had to use the “real” lambda values now since my material has now the correct expansion (in this case the correct thickness) for the calculation of the heat conductance. Looking at my simulation results I saw temperatures that were way to high on the “cold” side. My suspicion was that the expansion at a certain timestep in my simulation wasn’t taken into consideration for the calculation of the heat conduction. To confirm this I tried another run with the SCTE close to glass (=way lower) and I got the exact same temperature on the “cold” side again.<\/p>\n
So my question: Am I doing sth. wrong (e.g. missing a check somewhere) or isn’t the CF analysis able to take variing lenghts\/thicknesses during a simulation into consideration when calculating the heat conduction?<\/p>\n
Thank you,<\/p>\n
Christian<\/p>\n","protected":false},"template":"","class_list":["post-357628","topic","type-topic","status-closed","hentry","topic-tag-ansys-transient-thermal-2","topic-tag-coupled-field-1","topic-tag-mechanical","topic-tag-transient-structural"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["36261","490","240","58821"],"_bbp_author_ip":["96.7.218.223"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["1221"],"_bbp_topic_status":["unanswered"],"_edit_lock":["1710773430:198964"],"_bbp_status":["publish"],"_bbp_topic_id":["357628"],"_bbp_forum_id":["27791"],"_bbp_engagement":["240","490","36261","58821"],"_bbp_voice_count":["4"],"_bbp_reply_count":["5"],"_bbp_last_reply_id":["358150"],"_bbp_last_active_id":["358150"],"_bbp_last_active_time":["2024-03-20 13:51:50"]},"test":"christian-neuertugraz-at"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/357628","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":2,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/357628\/revisions"}],"predecessor-version":[{"id":357661,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/357628\/revisions\/357661"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=357628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}