{"id":44709,"date":"2020-06-03T13:32:53","date_gmt":"2020-06-03T13:32:53","guid":{"rendered":"\/forum\/forums\/topic\/maximum-aspect-ratio-of-mesh\/"},"modified":"2020-06-03T13:32:53","modified_gmt":"2020-06-03T13:32:53","slug":"maximum-aspect-ratio-of-mesh","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/maximum-aspect-ratio-of-mesh\/","title":{"rendered":"maximum aspect ratio of mesh"},"content":{"rendered":"<p>Hi all,<\/p>\n<p><\/p>\n<p>I am doing a methane combustion simulation with fluent. I followed the node distribution in literature and drew the same mesh with the author.&nbsp;<\/p>\n<p><\/p>\n<p>Because the geometry is a very thin channel, the final mesh has very large aspect ratio with maximum aspect ratio 150.&nbsp;<\/p>\n<p><\/p>\n<p>I used this mesh to continue my simulation. Divergence did not happen with this mesh. However, I can not ignite the mixture like the author did. Temperature would increase to a high temperature and then drop to room temperature.&nbsp;<\/p>\n<p><\/p>\n<p>I am wondering could this mesh with high aspect ratio be the reason why I can not ignite the mixture? will large aspect ratio mesh effect results accuracy?&nbsp;<\/p>\n<p><\/p>\n<p>Can somebody who has combustion simulation experience give me some suggestions?<\/p>\n<p><\/p>\n<p>Best regards<\/p>\n<p><\/p>\n<p>Weiqiang<\/p>\n","protected":false},"template":"","class_list":["post-44709","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["16890"],"_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":["3240"],"_bbp_subscription":["236081"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["44709"],"_bbp_forum_id":["27792"],"_bbp_engagement":["125","156533"],"_bbp_voice_count":["2"],"_bbp_reply_count":["4"],"_bbp_last_reply_id":["117626"],"_bbp_last_active_id":["117626"],"_bbp_last_active_time":["2020-06-13 03:26:30"]},"test":"weiqiang-liu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/44709","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\/44709\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=44709"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}