{"id":42451,"date":"2020-04-04T10:41:23","date_gmt":"2020-04-04T10:41:23","guid":{"rendered":"\/forum\/forums\/topic\/propeller-modelling-compressibility-activate-energy-equation\/"},"modified":"2020-04-04T10:41:23","modified_gmt":"2020-04-04T10:41:23","slug":"propeller-modelling-compressibility-activate-energy-equation","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/propeller-modelling-compressibility-activate-energy-equation\/","title":{"rendered":"Propeller Modelling Compressibility. Activate Energy Equation?"},"content":{"rendered":"<p>Hi,<\/p>\n<p><\/p>\n<p>I am modelling the design of a fairly small propeller (Diameter of 1.1m) and performing some basic performance analysis in Fluent. I am analysing two rotational speeds giving maximum tip speeds of M~0.5 and M~0.8 &#8211; so nothing too close to supersonic ranges and only just verging into the transonic region. I believe that a pressure-based solver will be suitable as nowadays it can handle some compressibility effects reasonably well. What I don&#8217;t know is whether to activate the energy equation or not.<\/p>\n<p><\/p>\n<p>The point of my study is not to provide supremely accurate results especially due to coronavirus, I have no access to high-performance computers and so need to complete it on my laptop. From the Fluent User\/Theory Guides, I can&#8217;t work out whether it would be necessary to activate the energy equation for my setup as I don&#8217;t have time to perform my own tests to compare the two. Is it likely to make a non-negligible difference?<\/p>\n<p><\/p>\n<p>Any advice would be appreciated, cheers!<\/p>\n","protected":false},"template":"","class_list":["post-42451","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["14631"],"_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":["330"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["42451"],"_bbp_forum_id":["27792"],"_bbp_engagement":["118","173997"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["110305"],"_bbp_last_active_id":["110305"],"_bbp_last_active_time":["2020-04-06 13:01:26"]},"test":"tomascari"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/42451","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\/42451\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=42451"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}