{"id":30841,"date":"2018-10-10T17:15:58","date_gmt":"2018-10-10T17:15:58","guid":{"rendered":"\/forum\/forums\/topic\/evaporation-condensation-model\/"},"modified":"2018-10-10T17:15:58","modified_gmt":"2018-10-10T17:15:58","slug":"evaporation-condensation-model","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/evaporation-condensation-model\/","title":{"rendered":"Evaporation-condensation model"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/9021e3e9-4676-4762-afcb-a84800f89dfe\/ec0e4357-bfaa-493a-8bfe-a97501187129_1.jpg?width=690&amp;upscale=false\" alt=\"biomass static temperature after initialization and after performing few time steps\">Hi All,&nbsp;<\/p>\n<p><\/p>\n<p>I am simulation biomass drying using thermal phase change evaporation-condensation&nbsp; model (eulerian multiphase).<\/p>\n<p><\/p>\n<p>initial conditions:<\/p>\n<p><\/p>\n<p>Biomass initial volume fraction: 0.6, Temperature: 300 K<\/p>\n<p><\/p>\n<p>Air: initial temperature 300k&#8230; gradually increasing with time<\/p>\n<p><\/p>\n<p>after initializing, i check contours of static temperature of biomass. It shows 300 k throughout the domain.&nbsp;<\/p>\n<p><\/p>\n<p>when i run simulation for 1 time step (or even more), i check the contours. It shows 300 K where biomass is patched and the rest of the domain shows 373 K. Attached pics.&nbsp;<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>Then I tried with the energy equation turned off in the beginning, and later&nbsp;I turned&nbsp;on the energy equation. The instant I turn ON the energy equation, the warning comes..<\/p>\n<p><\/p>\n<p>Temperature limited to 1.000000e+00 in 15337 cells on zone 2 in domain 3<\/p>\n<p><\/p>\n<p>and the area weighted average of biomass-temperature drops to less than 50 K from 300 K.&nbsp;<img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/9021e3e9-4676-4762-afcb-a84800f89dfe\/1b119aef-b5a2-4428-bc35-a975011c6cbf_img-20181010-190137-resized-20181010-071213906.jpg?width=690&amp;upscale=false\" alt=\"area weighted average of biomass static temperature\"><\/p>\n<p><\/p>\n<p>Can someone please address this issue. the temperature should be 300K throughout the domain. I have checked again and again by turning off the evaporation condensation model. when i turn off the model, there is no such problem.<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>Thanks<\/p>\n","protected":false},"template":"","class_list":["post-30841","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["3013"],"_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","0","0","0","0"],"_btv_view_count":["2666"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["30841"],"_bbp_forum_id":["27792"],"_bbp_engagement":["22555","155351","157440"],"_bbp_voice_count":["3"],"_bbp_reply_count":["14"],"_bbp_last_reply_id":["66862"],"_bbp_last_active_id":["66862"],"_bbp_last_active_time":["2018-10-17 21:14:19"]},"test":"maliuzair"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/30841","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\/30841\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=30841"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}