{"id":161661,"date":"2021-08-27T03:12:22","date_gmt":"2021-08-27T03:12:22","guid":{"rendered":"\/forum\/forums\/topic\/how-to-parametrize-a-general-impeller-geometry\/"},"modified":"2021-09-08T23:04:45","modified_gmt":"2021-09-08T23:04:45","slug":"how-to-parametrize-a-general-impeller-geometry","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-parametrize-a-general-impeller-geometry\/","title":{"rendered":"How to parametrize a general impeller geometry?"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hello folks,<\/p>\n<p>I need to confirm a few topics about Bladegen and DM software in the creation of turbomachinery geometry:<\/p>\n<p>(1) Are those 4 parameters sufficient to completely define a general impeller geometry on Bladegen?<\/p>\n<p>&#8211; Meridional profile<\/p>\n<p>&#8211; angle distribution (represented by beta or theta)<\/p>\n<p>&#8211; thickness distribution<\/p>\n<p>&#8211; number of blades<\/p>\n<p>(2) In the standard procedure for geometry creation, the angle distribution is defined in the 0% span layer and 100% span layer, how does Bladegen interpolate or create the angle distribution for the other 3 span layers (0.25\/0.5 and 0.75)<\/p>\n<p>(3) Why the blade-to-blade view uses the M&#039; vs theta coordinates system (or M vs R*theta; or M vs theta&#039;)? Usually, a see people defining the airfoil parameters in a 2D plane, where there is the axial chord, tangential chord, blade angles, leading-edge radius, and so on. I read that the beta angle is defined in the (m,s) coordinate systems, but still can&#039;t relate this to this blade-to-blade view. I get confused when converting cascade parameters from twisted rotors to 3D geometry in Bladegen.<\/p>\n","protected":false},"template":"","class_list":["post-161661","topic","type-topic","status-closed","hentry","topic-tag-bladegen-1","topic-tag-dm","topic-tag-turbomachinery"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":[""],"_bbp_old_reply_author_name_id":["Anonymous"],"_bbp_old_is_reply_anonymous_id":["false"],"_btv_view_count":["2399"],"_bbp_likes_count":["0"],"_bbp_subscription":["253568"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["161661"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","68667","179458"],"_bbp_voice_count":["3"],"_bbp_reply_count":["4"],"_bbp_last_reply_id":["190114"],"_bbp_last_active_id":["190114"],"_bbp_last_active_time":["2021-09-08 23:04:45"]},"test":"joaoalex"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/161661","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\/161661\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=161661"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}