{"id":341470,"date":"2023-12-21T08:18:46","date_gmt":"2023-12-21T08:18:46","guid":{"rendered":"\/forum\/forums\/topic\/calculating-the-kv-value-of-a-valve\/"},"modified":"2023-12-21T08:18:46","modified_gmt":"2023-12-21T08:18:46","slug":"calculating-the-kv-value-of-a-valve","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/calculating-the-kv-value-of-a-valve\/","title":{"rendered":"Calculating the Kv value of a valve"},"content":{"rendered":"<p>Hi, I have been trying to calculate a Kv value of a valve by this formula:<\/p>\n<p>Kv = Q\/dP, where Q is flow and dP is pressure drop.<\/p>\n<p>My input is (shown in image): 5bar at inlet and 4 bar at outlet. With these values I would get dP = 1, so the formulas comes to this:<\/p>\n<p>Kv = Q.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/12\/21-12-2023-1703146584-input values.png\" alt=\"\" width=\"891\" height=\"557\"><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/12\/21-12-2023-1703146652-report setup.png\" alt=\"\" width=\"890\" height=\"556\"><\/p>\n<p>The Kv value that I should get should be around 230 m3\/h (0.0638 m3\/s). This has been confirmed with real tests. I have already did a simulation in SolidWorks Flow and it worked. But with Fluent I keep getting a big volume flow rate 7300800 m3\/h (2.023 m3\/s).<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/12\/21-12-2023-1703146700-inlet flow plot.png\" alt=\"\" width=\"887\" height=\"498\"><\/p>\n<p>What could be the problem?<\/p>\n","protected":false},"template":"","class_list":["post-341470","topic","type-topic","status-closed","hentry","topic-tag-fluent","topic-tag-valve"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi, I have been trying to calculate a Kv value of a valve by this formula:Kv = Q\/dP, where Q is flow and dP is pressure drop.My input is (shown in image): 5bar at inlet and 4 bar at outlet. With these values I would get dP = 1, so the formulas comes to this:Kv\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/calculating-the-kv-value-of-a-valve\/\" \/>\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=\"Calculating the Kv value of a valve | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Hi, I have been trying to calculate a Kv value of a valve by this formula:Kv = Q\/dP, where Q is flow and dP is pressure drop.My input is (shown in image): 5bar at inlet and 4 bar at outlet. With these values I would get dP = 1, so the formulas comes to this:Kv\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/calculating-the-kv-value-of-a-valve\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2023\/12\/21-12-2023-1703146584-input%20values.png\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2023\/12\/21-12-2023-1703146584-input%20values.png\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2023-12-21T08:18:46+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2023-12-21T08:18:46+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Calculating the Kv value of a valve | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Hi, I have been trying to calculate a Kv value of a valve by this formula:Kv = Q\/dP, where Q is flow and dP is pressure drop.My input is (shown in image): 5bar at inlet and 4 bar at outlet. With these values I would get dP = 1, so the formulas comes to this:Kv\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2023\/12\/21-12-2023-1703146584-input values.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\\\/calculating-the-kv-value-of-a-valve\\\/#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\\\/calculating-the-kv-value-of-a-valve\\\/#listItem\",\"name\":\"Calculating the Kv value of a valve\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/calculating-the-kv-value-of-a-valve\\\/#listItem\",\"position\":4,\"name\":\"Calculating the Kv value of a valve\",\"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\\\/calculating-the-kv-value-of-a-valve\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/calculating-the-kv-value-of-a-valve\\\/\",\"name\":\"Calculating the Kv value of a valve | Ansys Learning Forum\",\"description\":\"Hi, I have been trying to calculate a Kv value of a valve by this formula:Kv = Q\\\/dP, where Q is flow and dP is pressure drop.My input is (shown in image): 5bar at inlet and 4 bar at outlet. With these values I would get dP = 1, so the formulas comes to this:Kv\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/calculating-the-kv-value-of-a-valve\\\/#breadcrumblist\"},\"datePublished\":\"2023-12-21T08:18:46+00:00\",\"dateModified\":\"2023-12-21T08:18:46+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":"Calculating the Kv value of a valve | Ansys Learning Forum","description":"Hi, I have been trying to calculate a Kv value of a valve by this formula:Kv = Q\/dP, where Q is flow and dP is pressure drop.My input is (shown in image): 5bar at inlet and 4 bar at outlet. With these values I would get dP = 1, so the formulas comes to this:Kv","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/calculating-the-kv-value-of-a-valve\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/calculating-the-kv-value-of-a-valve\/#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\/calculating-the-kv-value-of-a-valve\/#listItem","name":"Calculating the Kv value of a valve"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/calculating-the-kv-value-of-a-valve\/#listItem","position":4,"name":"Calculating the Kv value of a valve","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\/calculating-the-kv-value-of-a-valve\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/calculating-the-kv-value-of-a-valve\/","name":"Calculating the Kv value of a valve | Ansys Learning Forum","description":"Hi, I have been trying to calculate a Kv value of a valve by this formula:Kv = Q\/dP, where Q is flow and dP is pressure drop.My input is (shown in image): 5bar at inlet and 4 bar at outlet. With these values I would get dP = 1, so the formulas comes to this:Kv","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/calculating-the-kv-value-of-a-valve\/#breadcrumblist"},"datePublished":"2023-12-21T08:18:46+00:00","dateModified":"2023-12-21T08:18:46+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":"Calculating the Kv value of a valve | Ansys Learning Forum","og:description":"Hi, I have been trying to calculate a Kv value of a valve by this formula:Kv = Q\/dP, where Q is flow and dP is pressure drop.My input is (shown in image): 5bar at inlet and 4 bar at outlet. With these values I would get dP = 1, so the formulas comes to this:Kv","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/calculating-the-kv-value-of-a-valve\/","og:image":"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2023\/12\/21-12-2023-1703146584-input%20values.png","og:image:secure_url":"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2023\/12\/21-12-2023-1703146584-input%20values.png","article:published_time":"2023-12-21T08:18:46+00:00","article:modified_time":"2023-12-21T08:18:46+00:00","twitter:card":"summary_large_image","twitter:title":"Calculating the Kv value of a valve | Ansys Learning Forum","twitter:description":"Hi, I have been trying to calculate a Kv value of a valve by this formula:Kv = Q\/dP, where Q is flow and dP is pressure drop.My input is (shown in image): 5bar at inlet and 4 bar at outlet. With these values I would get dP = 1, so the formulas comes to this:Kv","twitter:image":"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2023\/12\/21-12-2023-1703146584-input values.png"},"aioseo_meta_data":{"post_id":"341470","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 17:08:26","updated":"2024-10-28 17:08:26","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\tCalculating the Kv value of a valve\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":"Calculating the Kv value of a valve","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/calculating-the-kv-value-of-a-valve\/"}],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["33919","15476","199"],"_bbp_author_ip":["96.7.218.215"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["586"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["341470"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","15476","33919"],"_bbp_voice_count":["3"],"_bbp_reply_count":["5"],"_bbp_last_reply_id":["343170"],"_bbp_last_active_id":["343170"],"_bbp_last_active_time":["2024-01-04 13:59:11"]},"test":"frane-calusicimi-hydronic-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/341470","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\/341470\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=341470"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}