{"id":312998,"date":"2023-10-24T10:22:30","date_gmt":"2023-10-24T10:22:30","guid":{"rendered":"\/forum\/forums\/topic\/simulation-of-pcm-encapsulated-in-plastic\/"},"modified":"2023-10-24T10:22:30","modified_gmt":"2023-10-24T10:22:30","slug":"simulation-of-pcm-encapsulated-in-plastic","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/simulation-of-pcm-encapsulated-in-plastic\/","title":{"rendered":"Simulation of PCM encapsulated in plastic"},"content":{"rendered":"<p>Hi Ansys help,<\/p>\n<p>I&#8217;m trying to simulate the freezing of PCM encapsulated in plastic, after prolonged contact with water.<br \/><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/10\/24-10-2023-1698141992-mceclip0.png\" width=\"392\" height=\"560\"><\/p>\n<p>I&#8217;ve reduced my model into 2D (not sure how to do it best in 3D). Green &#8211; water, Brown &#8211; plastic, Grey &#8211; PCM<\/p>\n<p>These are the conditions:<\/p>\n<ol>\n<li>water flow at 2mm\/min at 5 degreeC<\/li>\n<li>PCM initial temp at 9 degreeC<\/li>\n<li>PCM liquidus and solidus temp are 7 and 8 degreeC respectively<\/li>\n<\/ol>\n<p>My named selections are:<\/p>\n<ol>\n<li>face: inlet, outlet, water outer wall, pcm wall, plastic wall<\/li>\n<li>interior: water, plastic, pcm<\/li>\n<\/ol>\n<p>Material: <img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/10\/24-10-2023-1698142599-mceclip1.png\" width=\"671\" height=\"537\"><\/p>\n<p>Boundary Conditions:<\/p>\n<ol>\n<li>inlet with velocity and temp<\/li>\n<li>outlet: outflow<\/li>\n<li>wall: water wall temp of 5 degreeC<\/li>\n<\/ol>\n<p>Initialisation &#8211; 9 degreeC compute from PCM wall<\/p>\n<p>After running, the liq fraction of the PCM wall is always at 1 and the temp is always at 9 degreeC<\/p>\n<p>And when i try to set the pcm wall, plastic wall to coupled, the temp and liq fract graphs goes brrrr with floating point exception error<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/10\/24-10-2023-1698142839-mceclip2.png\" width=\"896\" height=\"389\"><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/10\/24-10-2023-1698142859-mceclip3.png\" width=\"904\" height=\"441\"><\/p>\n<p>I know I&#8217;m doing something (alot) wrong but I&#8217;m not sure what. Please help me, I would greatly appreciate it \ud83d\ude00<\/p>\n","protected":false},"template":"","class_list":["post-312998","topic","type-topic","status-closed","hentry","topic-tag-solidification"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["296357","199"],"_bbp_author_ip":["96.7.218.215"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["317"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["312998"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","296357"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["313071"],"_bbp_last_active_id":["313071"],"_bbp_last_active_time":["2023-10-24 15:19:10"]},"test":"e0540812u-nus-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/312998","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\/312998\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=312998"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}