{"id":167066,"date":"2023-04-05T14:32:48","date_gmt":"2023-04-05T14:32:48","guid":{"rendered":"\/knowledge\/forums\/topic\/can-i-use-a-chemkin-mechanism-to-read-in-my-eddy-dissipation-reactions-rather-than-entering-them-by-hand-this-seems-not-to-be-supported-i-can-read-in-the-mechanism-but-when-i-switch-to-eddy-dissi\/"},"modified":"2023-07-31T12:27:53","modified_gmt":"2023-07-31T12:27:53","slug":"can-i-use-a-chemkin-mechanism-to-read-in-my-eddy-dissipation-reactions-rather-than-entering-them-by-hand-this-seems-not-to-be-supported-i-can-read-in-the-mechanism-but-when-i-switch-to-eddy-dissi","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/can-i-use-a-chemkin-mechanism-to-read-in-my-eddy-dissipation-reactions-rather-than-entering-them-by-hand-this-seems-not-to-be-supported-i-can-read-in-the-mechanism-but-when-i-switch-to-eddy-dissi\/","title":{"rendered":"Can I use A Chemkin mechanism to read in my Eddy Dissipation reactions rather than entering them by hand?  This seems not to be supported.  I can read in the mechanism, but when I switch to Eddy Dissipation, the A and B coefficients are greyed out and zeroed."},"content":{"rendered":"<p>This behavior is due a defect in the Fluent GUI. (Will be fixed at V 19.3).  Once you import the Chemkin mechanism, edit the Mixture material and visit the Reactions panel once (without changing anything) and click the OK button.  After this, you can switch to Eddy-dissipation or Finite-Rate\/Eddy-Dissipation model as usual<\/p>\n","protected":false},"template":"","class_list":["post-167066","topic","type-topic","status-publish","hentry","topic-tag-19-2","topic-tag-eddy-dissipation","topic-tag-fluent","topic-tag-fluid-dynamics","topic-tag-general","topic-tag-species-reactions"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"This behavior is due a defect in the Fluent GUI. (Will be fixed at V 19.3). Once you import the Chemkin mechanism, edit the Mixture material and visit the Reactions panel once (without changing anything) and click the OK button. 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I can read in the mechanism, but when I switch to Eddy Dissipation, the A and B coefficients are greyed out and zeroed. | Ansys Knowledge\" \/>\n\t\t<meta property=\"og:description\" content=\"This behavior is due a defect in the Fluent GUI. (Will be fixed at V 19.3). Once you import the Chemkin mechanism, edit the Mixture material and visit the Reactions panel once (without changing anything) and click the OK button. After this, you can switch to Eddy-dissipation or Finite-Rate\/Eddy-Dissipation model as usual\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/can-i-use-a-chemkin-mechanism-to-read-in-my-eddy-dissipation-reactions-rather-than-entering-them-by-hand-this-seems-not-to-be-supported-i-can-read-in-the-mechanism-but-when-i-switch-to-eddy-dissi\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2023-04-05T14:32:48+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2023-07-31T12:27:53+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Can I use A Chemkin mechanism to read in my Eddy Dissipation reactions rather than entering them by hand? This seems not to be supported. I can read in the mechanism, but when I switch to Eddy Dissipation, the A and B coefficients are greyed out and zeroed. | Ansys Knowledge\" \/>\n\t\t<meta name=\"twitter:description\" content=\"This behavior is due a defect in the Fluent GUI. (Will be fixed at V 19.3). Once you import the Chemkin mechanism, edit the Mixture material and visit the Reactions panel once (without changing anything) and click the OK button. After this, you can switch to Eddy-dissipation or Finite-Rate\/Eddy-Dissipation model as usual\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/can-i-use-a-chemkin-mechanism-to-read-in-my-eddy-dissipation-reactions-rather-than-entering-them-by-hand-this-seems-not-to-be-supported-i-can-read-in-the-mechanism-but-when-i-switch-to-eddy-dissi\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"position\":2,\"name\":\"Topics\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/fluent\\\/#listItem\",\"name\":\"fluent\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/fluent\\\/#listItem\",\"position\":3,\"name\":\"fluent\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/fluent\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/can-i-use-a-chemkin-mechanism-to-read-in-my-eddy-dissipation-reactions-rather-than-entering-them-by-hand-this-seems-not-to-be-supported-i-can-read-in-the-mechanism-but-when-i-switch-to-eddy-dissi\\\/#listItem\",\"name\":\"Can I use A Chemkin mechanism to read in my Eddy Dissipation reactions rather than entering them by hand?  This seems not to be supported.  I can read in the mechanism, but when I switch to Eddy Dissipation, the A and B coefficients are greyed out and zeroed.\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/can-i-use-a-chemkin-mechanism-to-read-in-my-eddy-dissipation-reactions-rather-than-entering-them-by-hand-this-seems-not-to-be-supported-i-can-read-in-the-mechanism-but-when-i-switch-to-eddy-dissi\\\/#listItem\",\"position\":4,\"name\":\"Can I use A Chemkin mechanism to read in my Eddy Dissipation reactions rather than entering them by hand?  This seems not to be supported.  I can read in the mechanism, but when I switch to Eddy Dissipation, the A and B coefficients are greyed out and zeroed.\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/fluent\\\/#listItem\",\"name\":\"fluent\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/#organization\",\"name\":\"Ansys Knowledge\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/can-i-use-a-chemkin-mechanism-to-read-in-my-eddy-dissipation-reactions-rather-than-entering-them-by-hand-this-seems-not-to-be-supported-i-can-read-in-the-mechanism-but-when-i-switch-to-eddy-dissi\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/can-i-use-a-chemkin-mechanism-to-read-in-my-eddy-dissipation-reactions-rather-than-entering-them-by-hand-this-seems-not-to-be-supported-i-can-read-in-the-mechanism-but-when-i-switch-to-eddy-dissi\\\/\",\"name\":\"Can I use A Chemkin mechanism to read in my Eddy Dissipation reactions rather than entering them by hand? This seems not to be supported. I can read in the mechanism, but when I switch to Eddy Dissipation, the A and B coefficients are greyed out and zeroed. | Ansys Knowledge\",\"description\":\"This behavior is due a defect in the Fluent GUI. (Will be fixed at V 19.3). Once you import the Chemkin mechanism, edit the Mixture material and visit the Reactions panel once (without changing anything) and click the OK button. 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This seems not to be supported. I can read in the mechanism, but when I switch to Eddy Dissipation, the A and B coefficients are greyed out and zeroed. | Ansys Knowledge","description":"This behavior is due a defect in the Fluent GUI. (Will be fixed at V 19.3). Once you import the Chemkin mechanism, edit the Mixture material and visit the Reactions panel once (without changing anything) and click the OK button. After this, you can switch to Eddy-dissipation or Finite-Rate\/Eddy-Dissipation model as usual","canonical_url":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/can-i-use-a-chemkin-mechanism-to-read-in-my-eddy-dissipation-reactions-rather-than-entering-them-by-hand-this-seems-not-to-be-supported-i-can-read-in-the-mechanism-but-when-i-switch-to-eddy-dissi\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/can-i-use-a-chemkin-mechanism-to-read-in-my-eddy-dissipation-reactions-rather-than-entering-them-by-hand-this-seems-not-to-be-supported-i-can-read-in-the-mechanism-but-when-i-switch-to-eddy-dissi\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge#listItem","position":1,"name":"Home","item":"https:\/\/innovationspace.ansys.com\/knowledge","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/#listItem","position":2,"name":"Topics","item":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/fluent\/#listItem","name":"fluent"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/fluent\/#listItem","position":3,"name":"fluent","item":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/fluent\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/can-i-use-a-chemkin-mechanism-to-read-in-my-eddy-dissipation-reactions-rather-than-entering-them-by-hand-this-seems-not-to-be-supported-i-can-read-in-the-mechanism-but-when-i-switch-to-eddy-dissi\/#listItem","name":"Can I use A Chemkin mechanism to read in my Eddy Dissipation reactions rather than entering them by hand?  This seems not to be supported.  I can read in the mechanism, but when I switch to Eddy Dissipation, the A and B coefficients are greyed out and zeroed."},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/can-i-use-a-chemkin-mechanism-to-read-in-my-eddy-dissipation-reactions-rather-than-entering-them-by-hand-this-seems-not-to-be-supported-i-can-read-in-the-mechanism-but-when-i-switch-to-eddy-dissi\/#listItem","position":4,"name":"Can I use A Chemkin mechanism to read in my Eddy Dissipation reactions rather than entering them by hand?  This seems not to be supported.  I can read in the mechanism, but when I switch to Eddy Dissipation, the A and B coefficients are greyed out and zeroed.","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/fluent\/#listItem","name":"fluent"}}]},{"@type":"Organization","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/#organization","name":"Ansys Knowledge","description":"Ansys Innovation Space","url":"https:\/\/innovationspace.ansys.com\/knowledge\/"},{"@type":"WebPage","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/can-i-use-a-chemkin-mechanism-to-read-in-my-eddy-dissipation-reactions-rather-than-entering-them-by-hand-this-seems-not-to-be-supported-i-can-read-in-the-mechanism-but-when-i-switch-to-eddy-dissi\/#webpage","url":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/can-i-use-a-chemkin-mechanism-to-read-in-my-eddy-dissipation-reactions-rather-than-entering-them-by-hand-this-seems-not-to-be-supported-i-can-read-in-the-mechanism-but-when-i-switch-to-eddy-dissi\/","name":"Can I use A Chemkin mechanism to read in my Eddy Dissipation reactions rather than entering them by hand? This seems not to be supported. I can read in the mechanism, but when I switch to Eddy Dissipation, the A and B coefficients are greyed out and zeroed. | Ansys Knowledge","description":"This behavior is due a defect in the Fluent GUI. (Will be fixed at V 19.3). Once you import the Chemkin mechanism, edit the Mixture material and visit the Reactions panel once (without changing anything) and click the OK button. 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This seems not to be supported. I can read in the mechanism, but when I switch to Eddy Dissipation, the A and B coefficients are greyed out and zeroed. | Ansys Knowledge","og:description":"This behavior is due a defect in the Fluent GUI. (Will be fixed at V 19.3). Once you import the Chemkin mechanism, edit the Mixture material and visit the Reactions panel once (without changing anything) and click the OK button. After this, you can switch to Eddy-dissipation or Finite-Rate\/Eddy-Dissipation model as usual","og:url":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/can-i-use-a-chemkin-mechanism-to-read-in-my-eddy-dissipation-reactions-rather-than-entering-them-by-hand-this-seems-not-to-be-supported-i-can-read-in-the-mechanism-but-when-i-switch-to-eddy-dissi\/","article:published_time":"2023-04-05T14:32:48+00:00","article:modified_time":"2023-07-31T12:27:53+00:00","twitter:card":"summary_large_image","twitter:title":"Can I use A Chemkin mechanism to read in my Eddy Dissipation reactions rather than entering them by hand? This seems not to be supported. I can read in the mechanism, but when I switch to Eddy Dissipation, the A and B coefficients are greyed out and zeroed. | Ansys Knowledge","twitter:description":"This behavior is due a defect in the Fluent GUI. (Will be fixed at V 19.3). Once you import the Chemkin mechanism, edit the Mixture material and visit the Reactions panel once (without changing anything) and click the OK button. After this, you can switch to Eddy-dissipation or Finite-Rate\/Eddy-Dissipation model as usual"},"aioseo_meta_data":{"post_id":"167066","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":"default","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":false,"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":"2025-10-17 23:31:27","updated":"2026-07-29 21:37:05","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\/knowledge\" 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\/knowledge\/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\/knowledge\/forums\/topic-tag\/fluent\/\" title=\"fluent\">fluent<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tCan I use A Chemkin mechanism to read in my Eddy Dissipation reactions rather than entering them by hand?  This seems not to be supported.  I can read in the mechanism, but when I switch to Eddy Dissipation, the A and B coefficients are greyed out and zeroed.\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/knowledge"},{"label":"Topics","link":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/"},{"label":"fluent","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/fluent\/"},{"label":"Can I use A Chemkin mechanism to read in my Eddy Dissipation reactions rather than entering them by hand?  This seems not to be supported.  I can read in the mechanism, but when I switch to Eddy Dissipation, the A and B coefficients are greyed out and zeroed.","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/can-i-use-a-chemkin-mechanism-to-read-in-my-eddy-dissipation-reactions-rather-than-entering-them-by-hand-this-seems-not-to-be-supported-i-can-read-in-the-mechanism-but-when-i-switch-to-eddy-dissi\/"}],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"_bbp_last_active_time":["5\/4\/2023 20:20"],"_bbp_forum_id":["27784"],"_bbp_author_ip":["209.182.204.162"],"_btv_view_count":["522"],"siebel_km_number":["2056438"],"product_version":["19.2"],"km_published_date":["2018-09-20T00:00:00.000Z"],"family":["Fluid Dynamics"],"application_name":["FLUENT"]},"test":"articlesansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/167066","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/167066\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=167066"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}