{"id":359480,"date":"2024-03-28T15:45:27","date_gmt":"2024-03-28T15:45:27","guid":{"rendered":"\/forum\/?post_type=topic&#038;p=359480"},"modified":"2024-03-28T15:45:27","modified_gmt":"2024-03-28T15:45:27","slug":"solid291-elements-option-error","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/solid291-elements-option-error\/","title":{"rendered":"SOLID291 Elements Option Error"},"content":{"rendered":"<p>Hi all. I am running a Steady-State Thermal simulation involving conduction and radiation. I have previously obtained solutions without any problem. Yesterday, I added some Surface-to-Surface radiation. No change to the mesh. Then, I faced this error when I tried to run Solve:<\/p>\n<pre class=\"aLF-aPX-K0-aPE\">The element option SOLID291 was either not ordered with this ANSYS      \n installation or the appropriate product was not selected for this       \n session.                                         <\/pre>\n<p><a href=\"https:\/\/www.researchgate.net\/profile\/Hamidreza-Ahmadi-Moghaddam\/post\/Where_I_can_find_Ansys_Solid185_theoretical_formulation\/attachment\/60f86925181c2e4f4a7a6e83\/AS%3A1048077599244288%401626892580519\/download\/Ansys_Mechanical_APDL_Element_Reference.pdf\">This document<\/a> says SOLID291 is not included in ANSYS Mechanical Enterprise PrepPost, which is the version I have. How can I work around this? Why did it work previously and not anymore? Can I run the simulation with a different element option (not SOLID291)? Thanks in advance!<\/p>\n","protected":false},"template":"","class_list":["post-359480","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi all. I am running a Steady-State Thermal simulation involving conduction and radiation. I have previously obtained solutions without any problem. Yesterday, I added some Surface-to-Surface radiation. No change to the mesh. 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No change to the mesh. Then, I faced this error when I tried to run Solve:The element option SOLID291 was either not ordered with this ANSYS installation or\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/solid291-elements-option-error\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-03-28T15:45:27+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-03-28T15:45:27+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"SOLID291 Elements Option Error | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Hi all. I am running a Steady-State Thermal simulation involving conduction and radiation. I have previously obtained solutions without any problem. Yesterday, I added some Surface-to-Surface radiation. No change to the mesh. 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I am running a Steady-State Thermal simulation involving conduction and radiation. I have previously obtained solutions without any problem. Yesterday, I added some Surface-to-Surface radiation. No change to the mesh. 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I am running a Steady-State Thermal simulation involving conduction and radiation. I have previously obtained solutions without any problem. Yesterday, I added some Surface-to-Surface radiation. No change to the mesh. 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I am running a Steady-State Thermal simulation involving conduction and radiation. I have previously obtained solutions without any problem. Yesterday, I added some Surface-to-Surface radiation. No change to the mesh. Then, I faced this error when I tried to run Solve:The element option SOLID291 was either not ordered with this ANSYS installation or","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/solid291-elements-option-error\/","article:published_time":"2024-03-28T15:45:27+00:00","article:modified_time":"2024-03-28T15:45:27+00:00","twitter:card":"summary_large_image","twitter:title":"SOLID291 Elements Option Error | Ansys Learning Forum","twitter:description":"Hi all. I am running a Steady-State Thermal simulation involving conduction and radiation. I have previously obtained solutions without any problem. Yesterday, I added some Surface-to-Surface radiation. No change to the mesh. 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