{"id":222679,"date":"2022-07-29T11:04:30","date_gmt":"2022-07-29T11:04:30","guid":{"rendered":"\/forum\/forums\/reply\/222679\/"},"modified":"2022-07-29T11:04:30","modified_gmt":"2022-07-29T11:04:30","slug":"222679","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/222679\/","title":{"rendered":"Reply To: Time scale constant in DPM injection setting"},"content":{"rendered":"<p>&lt;p&gt;My feeling is that the time-scale constant CL &asymp; 0.15 is an approximation of CL = Cmu^(3\/4), where Cmu = 0.09 for the standard k-epsilon model [1]. In OpenFOAM the DRW model uses CL = &lt;span id=&#8221;cwos&#8221; class=&#8221;qv3Wpe&#8221;&gt;0.16431 instead.&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&lt;span class=&#8221;qv3Wpe&#8221;&gt;For the RSM model I&#8217;m not sure why they use CL &asymp; 0.30, but I believe that the rationale behind it may be similar to the one of the standard k-epsilon model. They might have used some constant of the RSM model instead.&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;div class=&#8221;gs_citr&#8221; tabindex=&#8221;0&#8243;&gt;[1] Gosman, A. D., and E. Loannides. &#8220;Aspects of computer simulation of liquid-fueled combustors.&#8221; <em>Journal of energy<\/em> 7.6 (1983): 482-490.&lt;\/div&gt;&lt;div class=&#8221;gs_citr&#8221; tabindex=&#8221;0&#8243;&gt;&nbsp;&lt;\/div&gt;<\/p>\n","protected":false},"template":"","class_list":["post-222679","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"My feeling is that the time-scale constant CL \u2248 0.15 is an approximation of CL = Cmu^(3\/4), where Cmu = 0.09 for the standard k-epsilon model [1]. In OpenFOAM the DRW model uses CL = 0.16431 instead.For the RSM model I&#039;m not sure why they use CL \u2248 0.30, but I believe\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/222679\/\" \/>\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=\"Reply To: Time scale constant in DPM injection setting | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"My feeling is that the time-scale constant CL \u2248 0.15 is an approximation of CL = Cmu^(3\/4), where Cmu = 0.09 for the standard k-epsilon model [1]. In OpenFOAM the DRW model uses CL = 0.16431 instead.For the RSM model I&#039;m not sure why they use CL \u2248 0.30, but I believe\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/222679\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2022-07-29T11:04:30+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2022-07-29T11:04:30+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Time scale constant in DPM injection setting | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"My feeling is that the time-scale constant CL \u2248 0.15 is an approximation of CL = Cmu^(3\/4), where Cmu = 0.09 for the standard k-epsilon model [1]. In OpenFOAM the DRW model uses CL = 0.16431 instead.For the RSM model I&#039;m not sure why they use CL \u2248 0.30, but I believe\" \/>\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\\\/reply\\\/222679\\\/#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\\\/forums\\\/reply\\\/222679\\\/#listItem\",\"name\":\"Reply To: Time scale constant in DPM injection setting\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/222679\\\/#listItem\",\"position\":2,\"name\":\"Reply To: Time scale constant in DPM injection setting\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}}]},{\"@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\\\/reply\\\/222679\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/222679\\\/\",\"name\":\"Reply To: Time scale constant in DPM injection setting | Ansys Learning Forum\",\"description\":\"My feeling is that the time-scale constant CL \\u2248 0.15 is an approximation of CL = Cmu^(3\\\/4), where Cmu = 0.09 for the standard k-epsilon model [1]. In OpenFOAM the DRW model uses CL = 0.16431 instead.For the RSM model I'm not sure why they use CL \\u2248 0.30, but I believe\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/222679\\\/#breadcrumblist\"},\"datePublished\":\"2022-07-29T11:04:30+00:00\",\"dateModified\":\"2022-07-29T11:04:30+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":"Reply To: Time scale constant in DPM injection setting | Ansys Learning Forum","description":"My feeling is that the time-scale constant CL \u2248 0.15 is an approximation of CL = Cmu^(3\/4), where Cmu = 0.09 for the standard k-epsilon model [1]. In OpenFOAM the DRW model uses CL = 0.16431 instead.For the RSM model I'm not sure why they use CL \u2248 0.30, but I believe","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/222679\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/222679\/#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\/forums\/reply\/222679\/#listItem","name":"Reply To: Time scale constant in DPM injection setting"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/222679\/#listItem","position":2,"name":"Reply To: Time scale constant in DPM injection setting","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","name":"Home"}}]},{"@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\/reply\/222679\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/222679\/","name":"Reply To: Time scale constant in DPM injection setting | Ansys Learning Forum","description":"My feeling is that the time-scale constant CL \u2248 0.15 is an approximation of CL = Cmu^(3\/4), where Cmu = 0.09 for the standard k-epsilon model [1]. In OpenFOAM the DRW model uses CL = 0.16431 instead.For the RSM model I'm not sure why they use CL \u2248 0.30, but I believe","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/222679\/#breadcrumblist"},"datePublished":"2022-07-29T11:04:30+00:00","dateModified":"2022-07-29T11:04:30+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":"Reply To: Time scale constant in DPM injection setting | Ansys Learning Forum","og:description":"My feeling is that the time-scale constant CL \u2248 0.15 is an approximation of CL = Cmu^(3\/4), where Cmu = 0.09 for the standard k-epsilon model [1]. In OpenFOAM the DRW model uses CL = 0.16431 instead.For the RSM model I'm not sure why they use CL \u2248 0.30, but I believe","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/222679\/","article:published_time":"2022-07-29T11:04:30+00:00","article:modified_time":"2022-07-29T11:04:30+00:00","twitter:card":"summary_large_image","twitter:title":"Reply To: Time scale constant in DPM injection setting | Ansys Learning Forum","twitter:description":"My feeling is that the time-scale constant CL \u2248 0.15 is an approximation of CL = Cmu^(3\/4), where Cmu = 0.09 for the standard k-epsilon model [1]. 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