{"id":388691,"date":"2024-10-09T03:40:34","date_gmt":"2024-10-09T03:40:34","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/problem-with-working-out-the-cese-ls-dyna-model\/"},"modified":"2024-10-09T03:40:34","modified_gmt":"2024-10-09T03:40:34","slug":"problem-with-working-out-the-cese-ls-dyna-model","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/problem-with-working-out-the-cese-ls-dyna-model\/","title":{"rendered":"Problem with working out the CESE LS-Dyna model"},"content":{"rendered":"<p>&lt;p&gt;I have a problem with working out the ICFD LS-Dyna model.When running the file, there is a problem with temperature not converging. How can this be resolved? How is the &#8220;cv&nbsp; &nbsp;cp&nbsp; &nbsp;c1&nbsp; &nbsp; c2&nbsp; &nbsp; pr &#8220;in the *CESE_EOS_IDEAL_GAS and *CESE_MAT_GAS keywords obtained, and how should the parameters of the mixed gas at different temperature and pressure be calculated?I would like to upload the complete document for you to see how to proceed?&lt;\/p&gt;&lt;p&gt;*CONTROL_TERMINATION&lt;br&gt;$# &nbsp;endtim &nbsp; &nbsp;endcyc &nbsp; &nbsp; dtmin &nbsp; &nbsp;endeng &nbsp; &nbsp;endmas &nbsp; &nbsp; nosol&lt;br&gt;&nbsp; &nbsp; &nbsp;0.001 &nbsp; &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; 0.0 &nbsp; &nbsp; &nbsp; 0.01.000000E8 &nbsp; &nbsp; &nbsp; &nbsp; 0&lt;br&gt;*CONTROL_TIMESTEP&lt;br&gt;$# &nbsp;dtinit &nbsp; &nbsp;tssfac &nbsp; &nbsp; &nbsp;isdo &nbsp; &nbsp;tslimt &nbsp; &nbsp; dt2ms &nbsp; &nbsp; &nbsp;lctm &nbsp; &nbsp; erode &nbsp; &nbsp; ms1st&lt;br&gt;1.00000E-7 &nbsp; &nbsp; &nbsp; 0.6 &nbsp; &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; 0.0 &nbsp; &nbsp; &nbsp; 0.0 &nbsp; &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; &nbsp; 0&lt;br&gt;*DATABASE_BINARY_D3DUMP&lt;br&gt;$# &nbsp; &nbsp;cycl &nbsp; &nbsp; &nbsp;lcdt &nbsp; &nbsp; &nbsp;beam &nbsp; &nbsp; npltc &nbsp; &nbsp;psetid&lt;br&gt;&nbsp; 100000.0 &nbsp; &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; &nbsp; 0&lt;br&gt;*DATABASE_BINARY_D3PLOT&lt;br&gt;$# &nbsp; &nbsp; &nbsp;dt &nbsp; &nbsp; &nbsp;lcdt &nbsp; &nbsp; &nbsp;beam &nbsp; &nbsp; npltc &nbsp; &nbsp;psetid&lt;br&gt;1.00000E-6 &nbsp; &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; &nbsp; 0&lt;br&gt;*CESE_CONTROL_LIMITER&lt;br&gt;$# &nbsp; idlmt &nbsp; &nbsp; &nbsp;alfa &nbsp; &nbsp; beta &nbsp; &nbsp; &nbsp; epsr&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;0 &nbsp; &nbsp; &nbsp; 2.0 &nbsp; &nbsp; &nbsp; 1.0 &nbsp; &nbsp; &nbsp; 0.5&lt;br&gt;*CESE_CONTROL_SOLVER&lt;br&gt;$# &nbsp; icese &nbsp; &nbsp; iflow &nbsp; &nbsp; igeom &nbsp; &nbsp;iframe&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp;200 &nbsp; &nbsp; &nbsp; &nbsp; 1 &nbsp; &nbsp; &nbsp; &nbsp; 3 &nbsp; &nbsp; &nbsp; &nbsp; 0&lt;br&gt;*CESE_CONTROL_TIMESTEP&lt;br&gt;$# &nbsp; &nbsp;iddt &nbsp; &nbsp; &nbsp; cfl &nbsp; &nbsp; dtint&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1 &nbsp; &nbsp; &nbsp; 0.51.00000E-7&lt;br&gt;*CESE_INITIAL_CHEMISTRY&lt;br&gt;$# &nbsp;chemid &nbsp; &nbsp;compid&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;5 &nbsp; &nbsp; &nbsp; &nbsp;11&lt;br&gt;$# &nbsp; &nbsp; uic &nbsp; &nbsp; &nbsp; vic &nbsp; &nbsp; &nbsp; wic &nbsp; &nbsp; rhoic &nbsp; &nbsp; &nbsp; pic &nbsp; &nbsp; &nbsp; tic &nbsp; &nbsp; &nbsp; hic&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp;0.0 &nbsp; &nbsp; &nbsp; 0.0 &nbsp; &nbsp; &nbsp; 0.0 &nbsp; &nbsp;16.708 &nbsp; 2000000 &nbsp; &nbsp; 300.0 &nbsp; &nbsp; &nbsp; 0.0&lt;br&gt;*CESE_INITIAL_CHEMISTRY_SET&lt;br&gt;$# &nbsp; setid &nbsp; &nbsp;chemid &nbsp; &nbsp;compid&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp;102 &nbsp; &nbsp; &nbsp; &nbsp; 5 &nbsp; &nbsp; &nbsp; &nbsp;11&lt;br&gt;$# &nbsp; &nbsp; uic &nbsp; &nbsp; &nbsp; vic &nbsp; &nbsp; &nbsp; wic &nbsp; &nbsp; rhoic &nbsp; &nbsp; &nbsp; pic &nbsp; &nbsp; &nbsp; tic &nbsp; &nbsp; &nbsp; hic&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp;0.0 &nbsp; &nbsp; &nbsp; 0.0 &nbsp; &nbsp; &nbsp; 0.0 &nbsp; &nbsp; &nbsp; 1.03.000000E7 &nbsp; &nbsp;3000.0 &nbsp; &nbsp; &nbsp; 0.0&lt;br&gt;*CESE_PART&lt;br&gt;$# &nbsp; &nbsp; pid &nbsp; &nbsp; &nbsp; mid &nbsp; &nbsp; eosid&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;2 &nbsp; &nbsp; &nbsp; &nbsp; 1 &nbsp; &nbsp; &nbsp; &nbsp; 1&lt;br&gt;*CESE_BOUNDARY_NON_REFLECTIVE_SET&lt;br&gt;$# &nbsp; &nbsp;ssid&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1&lt;br&gt;*CESE_EOS_IDEAL_GAS&lt;br&gt;$# &nbsp; eosid &nbsp; &nbsp; &nbsp; &nbsp;cv &nbsp; &nbsp; &nbsp; &nbsp;cp&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1 &nbsp; &nbsp; 997.0 &nbsp; &nbsp;1418.0&lt;br&gt;*CESE_MAT_GAS&lt;br&gt;$# &nbsp; &nbsp; mid &nbsp; &nbsp; &nbsp; &nbsp;c1 &nbsp; &nbsp; &nbsp; &nbsp;c2 &nbsp; 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