{"id":39200,"date":"2019-11-26T09:07:01","date_gmt":"2019-11-26T09:07:01","guid":{"rendered":"\/forum\/forums\/topic\/wall-velocity-and-clearance\/"},"modified":"2019-11-26T09:07:01","modified_gmt":"2019-11-26T09:07:01","slug":"wall-velocity-and-clearance","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/wall-velocity-and-clearance\/","title":{"rendered":"wall velocity and clearance"},"content":{"rendered":"<p>I&#8217;m trying to do flow analysis on the rotor with the tip clearance at the shroud. when I use no-slip wall it says memory allocated not sufficient, when I use counter-rotating wall it shows following error. I have done the meshing in turbogrid.<\/p>\n<p><\/p>\n<p>&nbsp;ERROR #002100080 has occurred in subroutine CHECK_NORMV.&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;|<\/p>\n<p><\/p>\n<p>&nbsp;| Message:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;|<\/p>\n<p><\/p>\n<p>&nbsp;| The specified velocity vector on the boundary patch&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |<\/p>\n<p><\/p>\n<p>&nbsp;|&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |<\/p>\n<p><\/p>\n<p>&nbsp;|&nbsp; R1 Shroud&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;|<\/p>\n<p><\/p>\n<p>&nbsp;|&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |<\/p>\n<p><\/p>\n<p>&nbsp;| has a significant normal component at one or more faces. One of&nbsp; &nbsp; |<\/p>\n<p><\/p>\n<p>&nbsp;| these face locations is&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |<\/p>\n<p><\/p>\n<p>&nbsp;|&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |<\/p>\n<p><\/p>\n<p>&nbsp;|&nbsp; (x,y,z) = ( 4.98395E-01, 4.00300E-02, 4.99807E-02).&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;|<\/p>\n<p><\/p>\n<p>&nbsp;|&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |<\/p>\n<p><\/p>\n<p>&nbsp;| The angle between the specified velocity and the element surface is|<\/p>\n<p><\/p>\n<p>&nbsp;|&nbsp; &nbsp;28.521 degrees at this face. This is considered an error because |<\/p>\n<p><\/p>\n<p>&nbsp;| it implies that the mesh is moving.&nbsp; The following are possible&nbsp; &nbsp; |<\/p>\n<p><\/p>\n<p>&nbsp;| reasons for the error message:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;|<\/p>\n<p><\/p>\n<p>&nbsp;| 1. There is a setup error; for example, an incorrect axis of&nbsp; &nbsp; &nbsp; &nbsp;|<\/p>\n<p><\/p>\n<p>&nbsp;|&nbsp; &nbsp; rotation.&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;|<\/p>\n<p><\/p>\n<p>&nbsp;| 2. There may be a meshing problem; for example, the nodes on a&nbsp; &nbsp; &nbsp;|<\/p>\n<p><\/p>\n<p>&nbsp;|&nbsp; &nbsp; rotating surface might not lie on the surface of revolution.&nbsp; &nbsp; |<\/p>\n<p><\/p>\n<p>&nbsp;| 3. The boundary is curved and the mesh is very coarse. In this&nbsp; &nbsp; &nbsp;|<\/p>\n<p><\/p>\n<p>&nbsp;|&nbsp; &nbsp; case, you may modify the tolerance by increasing the&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |<\/p>\n<p><\/p>\n<p>&nbsp;|&nbsp; &nbsp; expert parameter &#8216;tangential vector tolerance wall&#8217;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;|<\/p>\n<p><\/p>\n<p>&nbsp;|&nbsp; &nbsp; from its default of 20 degrees.&nbsp; &nbsp;<\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/d114727e-3c48-4931-81ed-ab110091dc5c\/60fd6e74-6204-427a-acd2-ab1100961895_annotation-2019-11-26-142646.jpg?width=690&amp;upscale=false\" alt=\"\"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-39200","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["11379"],"_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":["381"],"_bbp_subscription":["245294"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["39200"],"_bbp_forum_id":["27792"],"_bbp_engagement":["170939"],"_bbp_voice_count":["1"],"_bbp_reply_count":["0"],"_bbp_last_reply_id":["0"],"_bbp_last_active_id":["39200"],"_bbp_last_active_time":["2019-11-26 09:07:01"]},"test":"pradyumna"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/39200","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\/39200\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=39200"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}