{"id":251049,"date":"2023-02-22T16:29:36","date_gmt":"2023-02-22T16:29:36","guid":{"rendered":"\/forum\/forums\/reply\/251049\/"},"modified":"2023-02-22T16:30:49","modified_gmt":"2023-02-22T16:30:49","slug":"251049","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/251049\/","title":{"rendered":"Reply To: Fluid velocity in dpm_drag"},"content":{"rendered":"<p>&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;Using PP_CELL or TP_CELL doesn&rsquo;t make a difference.I am not sure I understand the difference correctly but from my understanding TP_ should be correct.&lt;\/p&gt;&lt;p&gt;I agree, the link the cell is likely the problem. I tested if &#8220;cell = TP_CELL(p)&#8221; works by outputting &#8220;Message(&ldquo;cellid %d&rdquo;, cell);&#8221; and it looks plausible (values between 0 and my max cell count). For the thread &#8220;t0 = TP_CELL_THREAD(tp)&#8221; I first checked &#8220;if (NULLP(t0)) Message(&ldquo;Nullpointer&rdquo;);&#8221; and it did not trigger. However &#8220;if (NULLP(THREAD_STORAGE(t0,SV_U))) Message(&ldquo;Nullpointer&rdquo;);&#8221; triggers. From my understanding this should be the location were C_U(c,t) looks for the data.&lt;\/p&gt;&lt;p&gt;So I am wondering, if I am referencing a Thread but not the correct one? Or is the storage location wrong? Do I need to account for any Subthreads? I have one Eulerian Phase and one DPM phase in my case.&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-251049","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=\"Using PP_CELL or TP_CELL doesn\u2019t make a difference.I am not sure I understand the difference correctly but from my understanding TP_ should be correct.I agree, the link the cell is likely the problem. I tested if &quot;cell = TP_CELL(p)&quot; works by outputting &quot;Message(\u201ccellid %d\u201d, cell);&quot; and it looks plausible (values between 0 and my max\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/251049\/\" \/>\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: Fluid velocity in dpm_drag | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Using PP_CELL or TP_CELL doesn\u2019t make a difference.I am not sure I understand the difference correctly but from my understanding TP_ should be correct.I agree, the link the cell is likely the problem. I tested if &quot;cell = TP_CELL(p)&quot; works by outputting &quot;Message(\u201ccellid %d\u201d, cell);&quot; and it looks plausible (values between 0 and my max\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/251049\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2023-02-22T16:29:36+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2023-02-22T16:30:49+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Fluid velocity in dpm_drag | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Using PP_CELL or TP_CELL doesn\u2019t make a difference.I am not sure I understand the difference correctly but from my understanding TP_ should be correct.I agree, the link the cell is likely the problem. I tested if &quot;cell = TP_CELL(p)&quot; works by outputting &quot;Message(\u201ccellid %d\u201d, cell);&quot; and it looks plausible (values between 0 and my max\" \/>\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\\\/251049\\\/#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\\\/251049\\\/#listItem\",\"name\":\"Reply To: Fluid velocity in dpm_drag\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/251049\\\/#listItem\",\"position\":2,\"name\":\"Reply To: Fluid velocity in dpm_drag\",\"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\\\/251049\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/251049\\\/\",\"name\":\"Reply To: Fluid velocity in dpm_drag | Ansys Learning Forum\",\"description\":\"Using PP_CELL or TP_CELL doesn\\u2019t make a difference.I am not sure I understand the difference correctly but from my understanding TP_ should be correct.I agree, the link the cell is likely the problem. 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