{"id":42704,"date":"2020-04-12T06:41:23","date_gmt":"2020-04-12T06:41:23","guid":{"rendered":"\/forum\/forums\/topic\/vof-to-dpm-phase-interaction-model-transition-mechanism-release-2020-r1-academic-student\/"},"modified":"2020-04-12T06:41:23","modified_gmt":"2020-04-12T06:41:23","slug":"vof-to-dpm-phase-interaction-model-transition-mechanism-release-2020-r1-academic-student","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/vof-to-dpm-phase-interaction-model-transition-mechanism-release-2020-r1-academic-student\/","title":{"rendered":"VOF to DPM Phase Interaction Model Transition Mechanism Release 2020 R1 Academic Student"},"content":{"rendered":"<p>Hello ANSYS Community,<\/p>\n<p><\/p>\n<p>I am new to spray simulation and I was trying to follow the VOF-to-DPM methodology used in this video for a simple 2D single nozzle spray simulation &#8211;<\/p>\n<p><\/p>\n<p><iframe loading=\"lazy\" title=\"ANSYS Fluent: Efficient Modeling of Spray Breakup using VOF-to-DPM Transition\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/S0MUu2svgQ8?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p><\/p>\n<p>Unfortunately, the video describes a setting that I am unable to find in the current Release 2020 R1 Academic version.<\/p>\n<p><\/p>\n<p>At around the 2:03 mark in the video, the video describes setting the &#8216;model transition mechanism&#8217; to the &#8216;injection&#8217; previously created. In the current release, there is no &#8216;model transition&nbsp;tab&#8217; in the &#8216;Phase Interaction&#8217; dialog box&nbsp;as such but there is a &#8216;Heat,Mass,Reactions&#8217; tab within the&nbsp;&#8216;Phase Interaction&#8217; tab of the &#8216;Multiphase Model&#8217;&nbsp;dialog box (See attached image). I am assuming this is&nbsp;same as the model transition section earlier.&nbsp;But here when I try to set the mechanism, it does not show the previously created injection. The only options available are &#8211; constant-rate, cavitation, evaporation-condensation, user-defined, New Input Parameter.<\/p>\n<p><\/p>\n<p>I have tried using the user-defined option but it shows this error &#8211;<\/p>\n<p><\/p>\n<blockquote><p><\/p>\n<p style=\"margin: 0px;\"><span style=\"color: #ff0000;\">Error: No user-defined functions of type udf-type-linearized-mass-transfer have been loaded.<\/span><\/p>\n<p><\/p>\n<p style=\"margin: 0px;\"><span style=\"color: #ff0000;\">For user-defined mass transfer, linearized mass transfer UDFs are enabled.<\/span><\/p>\n<p><\/p>\n<p style=\"margin: 0px;\"><span style=\"color: #ff0000;\">If needed, use &#8216;\/solve\/set\/expert&#8217; in the TUI to switch to non-linearized mass transfer UDFs.<\/span><\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p style=\"margin: 0px;\"><span style=\"color: #ff0000;\">Error Object: #f<\/span><\/p>\n<p>\n<\/p><\/blockquote>\n<p><\/p>\n<p>I would appreciate any help&nbsp;in understanding this problem better and finding a way to fix it.<\/p>\n<p><\/p>\n<p>I have attached an image of the interface available to me in FLUENT Release 2020 R1 Academic Student.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/afc90282-2716-4fbc-873e-ab9a0079bc7a\/a9a68a9f-b243-49da-b5bb-ab9c005d0dc4_release-2020-r1-screenshot.jpg?width=690&amp;upscale=false\" alt=\"\"><\/p>\n<p><\/p>\n<p>Thank you.<\/p>\n","protected":false},"template":"","class_list":["post-42704","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["14884"],"_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"],"_oembed_8c40dab08e43b99c5a50f7f5bd555057":["<iframe title=\"ANSYS Fluent: Efficient Modeling of Spray Breakup using VOF-to-DPM Transition\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/S0MUu2svgQ8?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>"],"_oembed_time_8c40dab08e43b99c5a50f7f5bd555057":["1638818819"],"_bbp_likes_count":["0"],"_btv_view_count":["1836"],"_bbp_subscription":["249744"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["42704"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","172258","175582","175923"],"_bbp_voice_count":["4"],"_bbp_reply_count":["5"],"_oembed_ea2e6c0a2456d02af70feba7f028772b":["<iframe title=\"ANSYS Fluent: Efficient Modeling of Spray Breakup using VOF-to-DPM Transition\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/S0MUu2svgQ8?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>"],"_oembed_time_ea2e6c0a2456d02af70feba7f028772b":["1733164530"],"_bbp_last_reply_id":["141535"],"_bbp_last_active_id":["141535"],"_bbp_last_active_time":["2021-02-08 11:53:11"]},"test":"unicrey"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/42704","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\/42704\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=42704"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}