{"id":370366,"date":"2024-07-03T19:58:10","date_gmt":"2024-07-03T19:58:10","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/atomization-floating-point-exception\/"},"modified":"2024-07-03T19:58:10","modified_gmt":"2024-07-03T19:58:10","slug":"atomization-floating-point-exception","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/atomization-floating-point-exception\/","title":{"rendered":"Atomization- floating point exception"},"content":{"rendered":"<p>I am currently simulating ultrasonic atomization by applying a dynamic mesh to the bottom wall. Although the simulation initially converges, I encounter a floating-point exception after approximately 200 time steps. The oscillation frequency is very high at 1.7 MHz, which may contribute to the error. However, I experience the same issue even when using a lower frequency. I aim to continue the simulation for a longer duration and would appreciate any suggestions for resolving the floating-point error. The mesh is structured and of very high quality. Additionally, I have reduced the time step to 1.84e-8, which should be sufficiently small. The dynamic was defined as&nbsp;sinusoidal oscillation with UDF. The explicit <img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/03-07-2024-1720036653-Picture1.png\" alt=\"\">VOF with implicit body force was used to track the interface.&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-370366","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_btv_view_count":["137"],"_bbp_topic_status":["unanswered"],"_bbp_subscription":["199","276653"],"_bbp_topic_id":["370366"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","276653"],"_bbp_voice_count":["2"],"_bbp_reply_count":["7"],"_bbp_last_reply_id":["371873"],"_bbp_last_active_id":["371873"],"_bbp_last_active_time":["2024-07-15 10:39:00"]},"test":"mfamildardashtiwpi-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/370366","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\/370366\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=370366"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}