{"id":30811,"date":"2018-10-09T10:17:43","date_gmt":"2018-10-09T10:17:43","guid":{"rendered":"\/forum\/forums\/topic\/floating-point-exception\/"},"modified":"2018-10-09T10:17:43","modified_gmt":"2018-10-09T10:17:43","slug":"floating-point-exception","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/floating-point-exception\/","title":{"rendered":"Floating point exception"},"content":{"rendered":"<p style=\"margin: 0px;\"><span style=\"color: #ff0000;\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/034b6358-d655-4018-9a94-a97400a66228\/7973d660-df63-4b42-bb80-a97400e2e348_casing-boolean.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/034b6358-d655-4018-9a94-a97400a66228\/af15b554-b2d3-4b70-85b8-a97400e1097a_bare.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/034b6358-d655-4018-9a94-a97400a66228\/49baa64d-34e6-48be-bd32-a97400e115db_casing-close.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/034b6358-d655-4018-9a94-a97400a66228\/e83f81e6-3c6c-441e-b2ee-a97400e12f74_casing-mesh.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/034b6358-d655-4018-9a94-a97400a66228\/0adb34c5-9ad9-432a-90d1-a97400e13db3_casing-pressure.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/034b6358-d655-4018-9a94-a97400a66228\/2c5b53a7-bf25-4d56-8517-a97400e15f39_casing-velocity.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/034b6358-d655-4018-9a94-a97400a66228\/c1907b87-6d3d-45af-ae46-a97400e178c0_entire-mesh.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/034b6358-d655-4018-9a94-a97400a66228\/119b4191-5137-497a-babd-a97400e18c24_geometry.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/034b6358-d655-4018-9a94-a97400a66228\/7d85980b-6a3c-4060-a3de-a97400e19e16_inlet.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/034b6358-d655-4018-9a94-a97400a66228\/cd0c9087-5c9e-40c6-9ffb-a97400e1b476_whole-mesh.jpg?width=690&amp;upscale=false\" alt=\"\">I keep getting this error:<\/span><\/p>\n<p><\/p>\n<p style=\"margin: 0px;\">&nbsp;<\/p>\n<p><\/p>\n<p style=\"margin: 0px;\"><span style=\"color: #ff0000;\">&#8220;Error: floating point exception<\/span><\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p style=\"margin: 0px;\"><span style=\"color: #ff0000;\">Error Object: #f&#8221;<\/span><\/p>\n<p><\/p>\n<p style=\"margin: 0px;\">&nbsp;<\/p>\n<p><\/p>\n<p style=\"margin: 0px;\"><span style=\"color: #ff0000;\">I am simulating a porous-jump turbine with a casing attached to determine the drag and power coefficient using k-epsilon model. If I set the casing to be &#8220;interior&#8221;, the simulation runs &#8220;correctly&#8221; but then the&nbsp;incompressible gas flows through the casing wall, thereby negating its presence. But when I try to set the casing to be a wall boundary, the error occurs and all but one tiny section of the domain is zero velocity.<\/span><\/p>\n<p><\/p>\n<p style=\"margin: 0px;\">&nbsp;<\/p>\n<p><\/p>\n<p style=\"margin: 0px;\"><span style=\"color: #ff0000;\">I can&#8217;t seem to understand why the wall function causes errors when the mesh doesn&#8217;t change but the boundary condition does.&nbsp;<\/span><\/p>\n","protected":false},"template":"","class_list":["post-30811","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["2983"],"_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":["2375"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["30811"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","158563","159371"],"_bbp_voice_count":["3"],"_bbp_reply_count":["10"],"_bbp_last_reply_id":["66220"],"_bbp_last_active_id":["66220"],"_bbp_last_active_time":["2018-10-11 06:09:40"]},"test":"chad-gouws"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/30811","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\/30811\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=30811"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}