{"id":45431,"date":"2020-06-24T14:06:46","date_gmt":"2020-06-24T14:06:46","guid":{"rendered":"\/forum\/forums\/topic\/frost-sublimation-modelling-with-udf\/"},"modified":"2020-06-24T14:06:46","modified_gmt":"2020-06-24T14:06:46","slug":"frost-sublimation-modelling-with-udf","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/frost-sublimation-modelling-with-udf\/","title":{"rendered":"Frost sublimation modelling with UDF"},"content":{"rendered":"<p>Hello,<\/p>\n<p><\/p>\n<p>I am trying to simulate frost formation onto a vertical surface with a DEFINE_MASS_TRANSFER UDF. The temperature of frost (modeled as ice&lt;s&#038;gt<img decoding=\"async\" src=\"\/content\/images\/emoticons\/wink-emoticon.png\" alt=\"\" class=\"emoticon\" \/>&nbsp;reaches&nbsp;5000K (see picture). The ambient air is 295K and the cold surface temperature is 77K. My suspicion is that there is an issue with how the model treats the sensible\/latent heat. Anyone mind offering any advice on how to address the problem? Thank you.<img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/40f2eb95-15f1-4f70-a564-abe4006f2287\/b0e71b5b-371a-497b-85be-abe400e88728_temperature-profile.jpg?width=690&amp;upscale=false\" alt=\"\"><\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-45431","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["17612"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0"],"_btv_view_count":["1164"],"_bbp_subscription":["15879","294048"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["45431"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","22555","178869","294048"],"_bbp_voice_count":["4"],"_bbp_reply_count":["11"],"_bbp_last_reply_id":["309530"],"_bbp_last_active_id":["309530"],"_bbp_last_active_time":["2023-09-30 13:31:24"]},"test":"joshwong96"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/45431","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\/45431\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=45431"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}