{"id":237269,"date":"2022-10-09T19:24:30","date_gmt":"2022-10-09T19:24:30","guid":{"rendered":"\/forum\/forums\/topic\/getting-latent-heat-can-not-be-less-than-zero-error-in-condensation-simulation\/"},"modified":"2022-10-09T19:24:30","modified_gmt":"2022-10-09T19:24:30","slug":"getting-latent-heat-can-not-be-less-than-zero-error-in-condensation-simulation","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/getting-latent-heat-can-not-be-less-than-zero-error-in-condensation-simulation\/","title":{"rendered":"Getting &#8220;Latent Heat can not be less than zero&#8221; error in Condensation simulation"},"content":{"rendered":"<p>Hello,<\/p>\n<p>I am trying to simulate water-vapor condensation, using VOF model. When adding materials from Fluent database, I manually add the values of Latent Heat:<\/p>\n<p>Zero for water-liquid and for Air, and 43987714 j\/Kgmol for water-vapor.<\/p>\n<p>When starting the calculation, it gives &#8220;Latent Heat can not be less than zero&#8221; error.<\/p>\n<p>I tried running the same geometry as an Evaporation simulation (reversed BC and starting with water-liquid at inlet, instead of vapor), it did not give the Latent Heat related error and based on attached contour, seems that Evaporation is actually happening and there is water-vapor in the domain.<img decoding=\"async\" title=\"water-vapor-volume-fraction(1)\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2022\/10\/09-10-2022-1665343197-water-vapor-volume-fraction(1).png\" alt=\"\"><\/p>\n<p>I would appreciate any comment on this.<\/p>\n<p>Thanks<\/p>\n","protected":false},"template":"","class_list":["post-237269","topic","type-topic","status-closed","hentry","topic-tag-condensation-evaporation-1","topic-tag-condensation-of-vapour-1"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hello,I am trying to simulate water-vapor condensation, using VOF model. 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When adding materials from Fluent database, I manually add the values of Latent Heat:Zero for water-liquid and for Air, and 43987714 j\/Kgmol for water-vapor.When starting the calculation, it gives \"Latent Heat can not be less than zero\" error.I tried running the same geometry as an","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/getting-latent-heat-can-not-be-less-than-zero-error-in-condensation-simulation\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/getting-latent-heat-can-not-be-less-than-zero-error-in-condensation-simulation\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","position":1,"name":"Home","item":"https:\/\/innovationspace.ansys.com\/forum","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","position":2,"name":"Topics","item":"https:\/\/innovationspace.ansys.com\/forum\/topics\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/condensation-evaporation-1\/#listItem","name":"condensation-evaporation"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/condensation-evaporation-1\/#listItem","position":3,"name":"condensation-evaporation","item":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/condensation-evaporation-1\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/getting-latent-heat-can-not-be-less-than-zero-error-in-condensation-simulation\/#listItem","name":"Getting &#8220;Latent Heat can not be less than zero&#8221; error in Condensation simulation"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/getting-latent-heat-can-not-be-less-than-zero-error-in-condensation-simulation\/#listItem","position":4,"name":"Getting &#8220;Latent Heat can not be less than zero&#8221; error in Condensation simulation","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/condensation-evaporation-1\/#listItem","name":"condensation-evaporation"}}]},{"@type":"Organization","@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization","name":"Ansys Learning Forum","description":"Ansys Innovation Space","url":"https:\/\/innovationspace.ansys.com\/forum\/"},{"@type":"WebPage","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/getting-latent-heat-can-not-be-less-than-zero-error-in-condensation-simulation\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/getting-latent-heat-can-not-be-less-than-zero-error-in-condensation-simulation\/","name":"Getting \u201cLatent Heat can not be less than zero\u201d error in Condensation simulation | Ansys Learning Forum","description":"Hello,I am trying to simulate water-vapor condensation, using VOF model. 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When adding materials from Fluent database, I manually add the values of Latent Heat:Zero for water-liquid and for Air, and 43987714 j\/Kgmol for water-vapor.When starting the calculation, it gives &quot;Latent Heat can not be less than zero&quot; error.I tried running the same geometry as an","twitter:image":"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2022\/10\/09-10-2022-1665343197-water-vapor-volume-fraction(1).png"},"aioseo_meta_data":{"post_id":"237269","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"content","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":true,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"limit_modified_date":false,"created":"2024-10-28 19:01:43","updated":"2024-10-28 19:01:43","ai":null,"breadcrumb_settings":null,"seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\/topics\/\" title=\"Topics\">Topics<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/condensation-evaporation-1\/\" title=\"condensation-evaporation\">condensation-evaporation<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tGetting \u201cLatent Heat can not be less than zero\u201d error in Condensation simulation\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/forum"},{"label":"Topics","link":"https:\/\/innovationspace.ansys.com\/forum\/topics\/"},{"label":"condensation-evaporation","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/condensation-evaporation-1\/"},{"label":"Getting &#8220;Latent Heat can not be less than zero&#8221; error in Condensation simulation","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/getting-latent-heat-can-not-be-less-than-zero-error-in-condensation-simulation\/"}],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["216824","22555","29843"],"_bbp_author_ip":["23.192.164.14"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["3542"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["237269"],"_bbp_forum_id":["27792"],"_bbp_engagement":["22555","29843","216824"],"_bbp_voice_count":["3"],"_bbp_reply_count":["6"],"_bbp_last_reply_id":["291117"],"_bbp_last_active_id":["291117"],"_bbp_last_active_time":["2023-06-30 20:04:02"]},"test":"ahkhoshbooiemun-ca"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/237269","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\/237269\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=237269"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}