{"id":383829,"date":"2024-09-23T19:37:20","date_gmt":"2024-09-23T19:37:20","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/drone-zero-lift-help\/"},"modified":"2024-10-09T15:53:39","modified_gmt":"2024-10-09T15:53:39","slug":"drone-zero-lift-help","status":"answered","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/drone-zero-lift-help\/","title":{"rendered":"Drone zero lift help"},"content":{"rendered":"<p>&lt;p&gt;hello&lt;br&gt;Im trying to simulate a drone as a school project, the issue is im getting zero lift force.&lt;br&gt;to my understanding is that the thrust should only be applied byt the quadcopter&#8217;s rotors and not through the velocity inlet.&lt;br&gt;I have tried steady state with angular velocity given the rotor&#8217;s walls, and I have tried MRF using rotating mesh, at an rpm of 10000.&lt;br&gt;the report definition measuring the forces on the walls.&lt;br&gt;the drone is inclined forwards with a pitch of 30 degress&lt;br&gt;velocity&nbsp; inlet at the front with speed = 0, or pressure outlet it gave the same result.&lt;br&gt;rear face of the domain is a pressure outlet&lt;br&gt;all the walls around the exterior of the domain aside from these two are symmetry.&lt;br&gt;I am stuck as I dont know what else am I missing.&lt;br&gt;using my sense the rotor&#8217;s rotation should be enough to provide measurable thrust to move the drone upwards and forwards.&lt;br&gt;&lt;br&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/09\/23-09-2024-1727119367-mceclip1.png\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-383829","topic","type-topic","status-answered","hentry","topic-tag-fluent","topic-tag-lift","topic-tag-mrf","topic-tag-rotor-1","topic-tag-spaceclaim"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"helloIm trying to simulate a drone as a school project, the issue is im getting zero lift force.to my understanding is that the thrust should only be applied byt the quadcopter&#039;s rotors and not through the velocity inlet.I have tried steady state with angular velocity given the rotor&#039;s walls, and I have tried MRF using\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/drone-zero-lift-help\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Drone zero lift help | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"helloIm trying to simulate a drone as a school project, the issue is im getting zero lift force.to my understanding is that the thrust should only be applied byt the quadcopter&#039;s rotors and not through the velocity inlet.I have tried steady state with angular velocity given the rotor&#039;s walls, and I have tried MRF using\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/drone-zero-lift-help\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/09\/23-09-2024-1727119367-mceclip1.png\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/09\/23-09-2024-1727119367-mceclip1.png\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-09-23T19:37:20+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-10-09T15:53:39+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Drone zero lift help | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"helloIm trying to simulate a drone as a school project, the issue is im getting zero lift force.to my understanding is that the thrust should only be applied byt the quadcopter&#039;s rotors and not through the velocity inlet.I have tried steady state with angular velocity given the rotor&#039;s walls, and I have tried MRF using\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/09\/23-09-2024-1727119367-mceclip1.png\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/drone-zero-lift-help\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"position\":2,\"name\":\"Topics\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/fluent\\\/#listItem\",\"name\":\"fluent\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/fluent\\\/#listItem\",\"position\":3,\"name\":\"fluent\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/fluent\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/drone-zero-lift-help\\\/#listItem\",\"name\":\"Drone zero lift help\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/drone-zero-lift-help\\\/#listItem\",\"position\":4,\"name\":\"Drone zero lift help\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/fluent\\\/#listItem\",\"name\":\"fluent\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/drone-zero-lift-help\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/drone-zero-lift-help\\\/\",\"name\":\"Drone zero lift help | Ansys Learning Forum\",\"description\":\"helloIm trying to simulate a drone as a school project, the issue is im getting zero lift force.to my understanding is that the thrust should only be applied byt the quadcopter's rotors and not through the velocity inlet.I have tried steady state with angular velocity given the rotor's walls, and I have tried MRF using\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/drone-zero-lift-help\\\/#breadcrumblist\"},\"datePublished\":\"2024-09-23T19:37:20+00:00\",\"dateModified\":\"2024-10-09T15:53:39+00:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"inLanguage\":\"en-US\",\"publisher\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"Drone zero lift help | Ansys Learning Forum","description":"helloIm trying to simulate a drone as a school project, the issue is im getting zero lift force.to my understanding is that the thrust should only be applied byt the quadcopter's rotors and not through the velocity inlet.I have tried steady state with angular velocity given the rotor's walls, and I have tried MRF using","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/drone-zero-lift-help\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/drone-zero-lift-help\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","position":1,"name":"Home","item":"https:\/\/innovationspace.ansys.com\/forum","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","position":2,"name":"Topics","item":"https:\/\/innovationspace.ansys.com\/forum\/topics\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/fluent\/#listItem","name":"fluent"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/fluent\/#listItem","position":3,"name":"fluent","item":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/fluent\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/drone-zero-lift-help\/#listItem","name":"Drone zero lift help"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/drone-zero-lift-help\/#listItem","position":4,"name":"Drone zero lift help","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/fluent\/#listItem","name":"fluent"}}]},{"@type":"Organization","@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization","name":"Ansys Learning Forum","description":"Ansys Innovation Space","url":"https:\/\/innovationspace.ansys.com\/forum\/"},{"@type":"WebPage","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/drone-zero-lift-help\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/drone-zero-lift-help\/","name":"Drone zero lift help | Ansys Learning Forum","description":"helloIm trying to simulate a drone as a school project, the issue is im getting zero lift force.to my understanding is that the thrust should only be applied byt the quadcopter's rotors and not through the velocity inlet.I have tried steady state with angular velocity given the rotor's walls, and I have tried MRF using","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/drone-zero-lift-help\/#breadcrumblist"},"datePublished":"2024-09-23T19:37:20+00:00","dateModified":"2024-10-09T15:53:39+00:00"},{"@type":"WebSite","@id":"https:\/\/innovationspace.ansys.com\/forum\/#website","url":"https:\/\/innovationspace.ansys.com\/forum\/","name":"Ansys Learning Forum","description":"Ansys Innovation Space","inLanguage":"en-US","publisher":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization"}}]},"og:locale":"en_US","og:site_name":"Ansys Learning Forum | Ansys Innovation Space","og:type":"article","og:title":"Drone zero lift help | Ansys Learning Forum","og:description":"helloIm trying to simulate a drone as a school project, the issue is im getting zero lift force.to my understanding is that the thrust should only be applied byt the quadcopter's rotors and not through the velocity inlet.I have tried steady state with angular velocity given the rotor's walls, and I have tried MRF using","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/drone-zero-lift-help\/","og:image":"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/09\/23-09-2024-1727119367-mceclip1.png","og:image:secure_url":"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/09\/23-09-2024-1727119367-mceclip1.png","article:published_time":"2024-09-23T19:37:20+00:00","article:modified_time":"2024-10-09T15:53:39+00:00","twitter:card":"summary_large_image","twitter:title":"Drone zero lift help | Ansys Learning Forum","twitter:description":"helloIm trying to simulate a drone as a school project, the issue is im getting zero lift force.to my understanding is that the thrust should only be applied byt the quadcopter's rotors and not through the velocity inlet.I have tried steady state with angular velocity given the rotor's walls, and I have tried MRF using","twitter:image":"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/09\/23-09-2024-1727119367-mceclip1.png"},"aioseo_meta_data":{"post_id":"383829","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"content","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":true,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"limit_modified_date":false,"created":"2024-10-28 16:28:13","updated":"2024-10-28 16:28:13","ai":null,"breadcrumb_settings":null,"seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\/topics\/\" title=\"Topics\">Topics<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/fluent\/\" title=\"fluent\">fluent<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tDrone zero lift help\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/forum"},{"label":"Topics","link":"https:\/\/innovationspace.ansys.com\/forum\/topics\/"},{"label":"fluent","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/fluent\/"},{"label":"Drone zero lift help","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/drone-zero-lift-help\/"}],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["266911","199"],"_bbp_author_ip":["41.254.71.28"],"_btv_view_count":["421"],"_bbp_topic_status":["answered"],"_edit_lock":["1727126961:266911"],"_bbp_likes_count":["1"],"_bbp_topic_id":["383829"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","266911"],"_bbp_voice_count":["2"],"_bbp_last_reply_id":["388799"],"_bbp_last_active_id":["388799"],"_bbp_last_active_time":["2024-10-09 15:51:25"]},"test":"eng-26248uob-edu-ly"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/383829","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\/383829\/revisions"}],"predecessor-version":[{"id":388800,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/383829\/revisions\/388800"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=383829"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}