Hello everybody.<\/p>\n
<\/p>\n
I am trying to run a Compressible (Ma=0.2) flow case around an object using ANSYS Fluent v18. I have been succesful running Compressible Flow around a 2D and 3D cylinder. Now, however, I want to run a much larger case: the case file (fluentcase.cas) is almost 17 GB.<\/p>\n
<\/p>\n
I can read the case and I can set the simulation up. I choose the time discretization, the spatial discretization, the CFL number, etc., and I even initialize the case. However, when I select ‘calculate’ and the solver starts computing the first iteration, I get the following error before the first iteration is computed:<\/p>\n
<\/p>\n
> <\/span>iter <\/span>continuity <\/span>x-velocity <\/span>y-velocity <\/span>z-velocity <\/span>energy<\/span><\/p>\n <\/p>\n Error: <\/span>received a fatal signal (Segmentation fault).<\/span><\/p>\n <\/p>\n <\/p>\n <\/p>\n Error: <\/span>received a fatal signal (Segmentation fault).<\/span><\/p>\n <\/p>\n Error Object: #f<\/span><\/p>\n <\/p>\n <\/p>\n <\/p>\n <\/span>time\/iter<\/span><\/p>\n <\/p>\n <\/p>\n <\/p>\n After several days, I can not find the source of the problem. I am approaching it as a steady problem just to do a first assessment of the solution and see if Fluent – even if it is not the right answer – can handle the case. Can it be a memory issue?<\/span><\/p>\n <\/p>\n Help much appreciated. Thank you for reading.<\/span><\/p>\n","protected":false},"template":"","class_list":["post-29853","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["2022"],"_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":["4149"],"_bbp_subscription":["115250"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["29853"],"_bbp_forum_id":["27792"],"_bbp_engagement":["25","158032"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["64801"],"_bbp_last_active_id":["64801"],"_bbp_last_active_time":["2018-09-24 20:58:25"]},"test":"oobiols"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/29853","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\/29853\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=29853"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}