{"id":164974,"date":"2023-03-17T08:59:08","date_gmt":"2023-03-17T08:59:08","guid":{"rendered":"\/knowledge\/forums\/topic\/is-there-a-way-to-get-the-volume-of-a-register-using-expression\/"},"modified":"2023-07-31T12:26:39","modified_gmt":"2023-07-31T12:26:39","slug":"is-there-a-way-to-get-the-volume-of-a-register-using-expression","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/is-there-a-way-to-get-the-volume-of-a-register-using-expression\/","title":{"rendered":"Is there a way to get the volume of a register using expression ?"},"content":{"rendered":"<p>Cell registers are available as Booleans in the expression system. Simply calculate the sum over the register with an if-condition.  Sum(IF(<register>, 1, 0), [<locations>], Weight=&#8221;Volume&#8221;)  <register> is the name of the cell register and <locations> is the list of cell zones. If the name of the register is &#8220;myregister&#8221; and the affected cell zones &#8220;fluid1&#8221; and &#8220;fluid2&#8243; the expression is:  Sum(IF(myregister, 1, 0), [&#8216;fluid1&#8217;, &#8216;fluid2&#8217;], Weight=&#8221;Volume&#8221;)<\/p>\n","protected":false},"template":"","class_list":["post-164974","topic","type-topic","status-publish","hentry","topic-tag-2020-r2","topic-tag-fluent","topic-tag-fluid-dynamics","topic-tag-general-fluent","topic-tag-hpc-gpu-cloud"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Cell registers are available as Booleans in the expression system. Simply calculate the sum over the register with an if-condition. Sum(IF(, 1, 0), [], Weight=&quot;Volume&quot;) is the name of the cell register and is the list of cell zones. If the name of the register is &quot;myregister&quot; and the affected cell zones &quot;fluid1&quot; and &quot;fluid2&quot;\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/is-there-a-way-to-get-the-volume-of-a-register-using-expression\/\" \/>\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 Knowledge | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Is there a way to get the volume of a register using expression ? | Ansys Knowledge\" \/>\n\t\t<meta property=\"og:description\" content=\"Cell registers are available as Booleans in the expression system. Simply calculate the sum over the register with an if-condition. Sum(IF(, 1, 0), [], Weight=&quot;Volume&quot;) is the name of the cell register and is the list of cell zones. If the name of the register is &quot;myregister&quot; and the affected cell zones &quot;fluid1&quot; and &quot;fluid2&quot;\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/is-there-a-way-to-get-the-volume-of-a-register-using-expression\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2023-03-17T08:59:08+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2023-07-31T12:26:39+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Is there a way to get the volume of a register using expression ? | Ansys Knowledge\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Cell registers are available as Booleans in the expression system. Simply calculate the sum over the register with an if-condition. Sum(IF(, 1, 0), [], Weight=&quot;Volume&quot;) is the name of the cell register and is the list of cell zones. If the name of the register is &quot;myregister&quot; and the affected cell zones &quot;fluid1&quot; and &quot;fluid2&quot;\" \/>\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\\\/knowledge\\\/forums\\\/topic\\\/is-there-a-way-to-get-the-volume-of-a-register-using-expression\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"position\":2,\"name\":\"Topics\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/fluent\\\/#listItem\",\"name\":\"fluent\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/fluent\\\/#listItem\",\"position\":3,\"name\":\"fluent\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/fluent\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/is-there-a-way-to-get-the-volume-of-a-register-using-expression\\\/#listItem\",\"name\":\"Is there a way to get the volume of a register using expression ?\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/is-there-a-way-to-get-the-volume-of-a-register-using-expression\\\/#listItem\",\"position\":4,\"name\":\"Is there a way to get the volume of a register using expression ?\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/fluent\\\/#listItem\",\"name\":\"fluent\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/#organization\",\"name\":\"Ansys Knowledge\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/is-there-a-way-to-get-the-volume-of-a-register-using-expression\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/is-there-a-way-to-get-the-volume-of-a-register-using-expression\\\/\",\"name\":\"Is there a way to get the volume of a register using expression ? | Ansys Knowledge\",\"description\":\"Cell registers are available as Booleans in the expression system. 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