{"id":356209,"date":"2024-03-09T17:04:11","date_gmt":"2024-03-09T17:04:11","guid":{"rendered":"\/forum\/?post_type=topic&#038;p=356209"},"modified":"2024-03-09T17:04:11","modified_gmt":"2024-03-09T17:04:11","slug":"rov-propeller-simulation","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/rov-propeller-simulation\/","title":{"rendered":"ROV propeller simulation"},"content":{"rendered":"<p class=\"MsoNormal\" style=\"text-align: justify\"><span style=\"font-size: 12.0pt;line-height: 107%;font-family: 'Times New Roman',serif\">I am simulating an ROV ducted propeller (underwater) to study thrust force behaviour with the changing duct angle. <\/span><\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify\"><span style=\"font-size: 12.0pt;line-height: 107%;font-family: 'Times New Roman',serif\">There is a significant discrepancy between the experimental thrust force and the results obtained from our computational fluid dynamics (CFD) simulations for the T200 thruster. Our experimental data, based on the technical details provided by Blue Robotics, indicates an expected thrust force of approximately 14.5 N at 1900 rpm.<\/span><\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify\"><span style=\"font-size: 12.0pt;line-height: 107%;font-family: 'Times New Roman',serif\">However, our CFD simulations yielded a significantly lower thrust force of approximately 5.7 N.<\/span><\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify\"><span style=\"font-size: 12.0pt;line-height: 107%;font-family: 'Times New Roman',serif\">Simulation details,<\/span><\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify\"><span style=\"font-size: 12.0pt;line-height: 107%;font-family: 'Times New Roman',serif\">Ansys CFX was used.<\/span><\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify\"><span style=\"font-size: 12.0pt;line-height: 107%;font-family: 'Times New Roman',serif\">I created two domains, stationary and rotary. I used a steady state with a frozen rotor approach.<\/span><\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify\"><span style=\"font-size: 12.0pt;line-height: 107%;font-family: 'Times New Roman',serif\">Inlet velocity is zero. wall and outlet were set as openings. <span style=\"font-size: 12.0pt;line-height: 107%;font-family: 'Times New Roman',serif\">k-epsilon model was used.<\/span><\/span><\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify\"><span style=\"font-size: 12.0pt;line-height: 107%;font-family: 'Times New Roman',serif\">1)What may be the&nbsp;<\/span><span style=\"font-family: 'Times New Roman', serif;font-size: 12pt\">re<\/span><span style=\"font-family: 'Times New Roman', serif;font-size: 12pt\">ason for this deviation?<\/span><\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify\"><span style=\"font-size: 12.0pt;line-height: 107%;font-family: 'Times New Roman',serif\">2)Are my boundary conditions correct for this type of application?<\/span><\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify\"><span style=\"font-size: 12.0pt;line-height: 107%;font-family: 'Times New Roman',serif\">Thank you.<\/span><\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify\"><span style=\"font-size: 12.0pt;line-height: 107%;font-family: 'Times New Roman',serif\"><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/09-03-2024-1709999859-Boundry condition.png\" alt=\"\" width=\"418\" height=\"235\"><\/span><\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify\"><span style=\"font-size: 12.0pt;line-height: 107%;font-family: 'Times New Roman',serif\"><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/09-03-2024-1709999964-Monitor 1.png\" alt=\"\" width=\"404\" height=\"227\"><\/span><\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify\"><span style=\"font-size: 12.0pt;line-height: 107%;font-family: 'Times New Roman',serif\"><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/09-03-2024-1710000099-mesh.jpg\" alt=\"\" width=\"478\" height=\"269\"><\/span><\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify\"><span style=\"font-size: 12.0pt;line-height: 107%;font-family: 'Times New Roman',serif\"><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/09-03-2024-1710000224-monitor 3.png\" alt=\"\" width=\"515\" height=\"290\"><\/span><\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify\">&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-356209","topic","type-topic","status-closed","hentry","topic-tag-ansys-cfx","topic-tag-propeller-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":["23.52.43.16"],"_bbp_subscription":["292539","39507"],"_btv_view_count":["466"],"_bbp_topic_status":["unanswered"],"_bbp_likes_count":["0"],"_bbp_topic_id":["356209"],"_bbp_forum_id":["27792"],"_bbp_engagement":["39507","292539"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["356591"],"_bbp_last_active_id":["356591"],"_bbp_last_active_time":["2024-03-12 10:29:10"]},"test":"lahirumadu55gmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/356209","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":1,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/356209\/revisions"}],"predecessor-version":[{"id":356210,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/356209\/revisions\/356210"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=356209"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}