{"id":163410,"date":"2021-10-26T16:12:00","date_gmt":"2021-10-26T16:12:00","guid":{"rendered":"\/forum\/forums\/topic\/reciprocating-compressor-valves-porous-zone-mimic\/"},"modified":"2021-11-17T14:52:42","modified_gmt":"2021-11-17T14:52:42","slug":"reciprocating-compressor-valves-porous-zone-mimic","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/reciprocating-compressor-valves-porous-zone-mimic\/","title":{"rendered":"RECIPROCATING COMPRESSOR VALVES &#8211; POROUS ZONE MIMIC"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hi everyone!<\/p>\n<p>Currently, I&#039;m simulating the transient behavior in a reciprocating compressor. For this, I implemented the use of a UDF to open or close the compressor valves through Porous Zone (Changing the viscous resistance) based on a average pressure. This code works great, but the problem is that in the animation of total pressure, the behavior of that pressure is totally uniform, wich doesn&#039;t make sense. I would like to ask you if anyone of you knows what is causing this problem and how I can fix it?<\/p>\n","protected":false},"template":"","class_list":["post-163410","topic","type-topic","status-closed","hentry","topic-tag-compressor","topic-tag-fluent","topic-tag-porous-zone-1","topic-tag-udf","topic-tag-udf-fluent"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi everyone!Currently, I&#039;m simulating the transient behavior in a reciprocating compressor. For this, I implemented the use of a UDF to open or close the compressor valves through Porous Zone (Changing the viscous resistance) based on a average pressure. This code works great, but the problem is that in the animation of total pressure, the\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/reciprocating-compressor-valves-porous-zone-mimic\/\" \/>\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=\"RECIPROCATING COMPRESSOR VALVES \u2013 POROUS ZONE MIMIC | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Hi everyone!Currently, I&#039;m simulating the transient behavior in a reciprocating compressor. For this, I implemented the use of a UDF to open or close the compressor valves through Porous Zone (Changing the viscous resistance) based on a average pressure. This code works great, but the problem is that in the animation of total pressure, the\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/reciprocating-compressor-valves-porous-zone-mimic\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2021-10-26T16:12:00+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2021-11-17T14:52:42+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"RECIPROCATING COMPRESSOR VALVES \u2013 POROUS ZONE MIMIC | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Hi everyone!Currently, I&#039;m simulating the transient behavior in a reciprocating compressor. For this, I implemented the use of a UDF to open or close the compressor valves through Porous Zone (Changing the viscous resistance) based on a average pressure. This code works great, but the problem is that in the animation of total pressure, the\" \/>\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\\\/reciprocating-compressor-valves-porous-zone-mimic\\\/#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\\\/reciprocating-compressor-valves-porous-zone-mimic\\\/#listItem\",\"name\":\"RECIPROCATING COMPRESSOR VALVES &#8211; POROUS ZONE MIMIC\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/reciprocating-compressor-valves-porous-zone-mimic\\\/#listItem\",\"position\":4,\"name\":\"RECIPROCATING COMPRESSOR VALVES &#8211; POROUS ZONE MIMIC\",\"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\\\/reciprocating-compressor-valves-porous-zone-mimic\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/reciprocating-compressor-valves-porous-zone-mimic\\\/\",\"name\":\"RECIPROCATING COMPRESSOR VALVES \\u2013 POROUS ZONE MIMIC | Ansys Learning Forum\",\"description\":\"Hi everyone!Currently, I'm simulating the transient behavior in a reciprocating compressor. 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