{"id":378157,"date":"2024-08-13T14:27:58","date_gmt":"2024-08-13T14:27:58","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/378157\/"},"modified":"2024-08-13T14:27:58","modified_gmt":"2024-08-13T14:27:58","slug":"378157","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/378157\/","title":{"rendered":"Reply To: Partial slip for rarefied flow regime"},"content":{"rendered":"<p>&lt;p&gt;This is my setup. I reaaly could not find out what problem there is, but maybe you can see it?&nbsp;&lt;br&gt;Fluent&lt;br&gt;Version: 3d, dp, dbns imp, lam (3d, double precision, density-based implicit, laminar)&lt;br&gt;Release: 24.1.0&lt;br&gt;Title:&nbsp;&lt;\/p&gt;&lt;p&gt;Models&lt;br&gt;&#8212;&#8212;&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp;Model &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Settings &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-&lt;br&gt;&nbsp; &nbsp;Space &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;3D &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp;Time &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Steady &nbsp; &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp;Viscous &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Laminar &nbsp; &nbsp;&lt;br&gt;&nbsp; &nbsp;Heat Transfer &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Enabled &nbsp; &nbsp;&lt;br&gt;&nbsp; &nbsp;Solidification and Melting &nbsp; Disabled &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp;Radiation &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;None &nbsp; &nbsp; &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp;Species &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Disabled &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp;Coupled Dispersed Phase &nbsp; &nbsp; &nbsp;Disabled &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp;NOx Pollutants &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Disabled &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp;SOx Pollutants &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Disabled &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp;Soot &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Disabled &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp;Mercury Pollutants &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Disabled &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp;Structure &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Disabled &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp;Acoustics &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Disabled &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp;Eulerian Wall Film &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Disabled &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp;Potential\/Electrochemistry &nbsp; Disabled &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp;Multiphase &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Disabled &nbsp;&nbsp;&lt;\/p&gt;&lt;p&gt;Material Properties&lt;br&gt;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp;Material: air (fluid)&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; Property &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Units &nbsp; &nbsp; &nbsp;Method &nbsp; &nbsp; Value(s) &nbsp; &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-&lt;br&gt;&nbsp; &nbsp; &nbsp; Density &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;kg\/m^3 &nbsp; &nbsp; constant &nbsp; 1.225 &nbsp; &nbsp; &nbsp; &nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; Cp (Specific Heat) &nbsp; &nbsp; J\/(kg K) &nbsp; constant &nbsp; 1006.43 &nbsp; &nbsp; &nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; Thermal Conductivity &nbsp; W\/(m K) &nbsp; &nbsp;constant &nbsp; 0.0242 &nbsp; &nbsp; &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; Viscosity &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;kg\/(m s) &nbsp; constant &nbsp; 1.7894e-05 &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; Molecular Weight &nbsp; &nbsp; &nbsp; kg\/kmol &nbsp; &nbsp;constant &nbsp; 28.966 &nbsp; &nbsp; &nbsp;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp;Material: aluminum (solid)&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; Property &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Units &nbsp; &nbsp; &nbsp;Method &nbsp; &nbsp; Value(s) &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;&lt;br&gt;&nbsp; &nbsp; &nbsp; Density &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;kg\/m^3 &nbsp; &nbsp; constant &nbsp; 2719 &nbsp; &nbsp; &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; Cp (Specific Heat) &nbsp; &nbsp; J\/(kg K) &nbsp; constant &nbsp; 871 &nbsp; &nbsp; &nbsp; &nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; Thermal Conductivity &nbsp; W\/(m K) &nbsp; &nbsp;constant &nbsp; 202.4 &nbsp; &nbsp; &nbsp;&lt;\/p&gt;&lt;p&gt;Cell Zone Conditions&lt;br&gt;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp;Zones&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; name &nbsp; &nbsp;id &nbsp; type &nbsp; &nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&lt;br&gt;&nbsp; &nbsp; &nbsp; fluid &nbsp; 11 &nbsp; fluid &nbsp;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp;Setup Conditions&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; fluid&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Condition &nbsp; &nbsp; &nbsp; Value &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Frame Motion? &nbsp; no &nbsp; &nbsp; &nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Mesh Motion? &nbsp; &nbsp;no &nbsp; &nbsp; &nbsp;&lt;\/p&gt;&lt;p&gt;Boundary Conditions&lt;br&gt;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp;Zones&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; name &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;id &nbsp; type &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&lt;br&gt;&nbsp; &nbsp; &nbsp; bottom_plane &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;14 &nbsp; symmetry &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; nozzle_side_wall &nbsp; &nbsp; &nbsp;15 &nbsp; wall &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; nozzle_profile_wall &nbsp; 16 &nbsp; wall &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; plume_midplane &nbsp; &nbsp; &nbsp; &nbsp;19 &nbsp; symmetry &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; nozzle_midplane &nbsp; &nbsp; &nbsp; 17 &nbsp; symmetry &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; inlet &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 13 &nbsp; pressure-inlet &nbsp; &nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; outlet &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;18 &nbsp; pressure-outlet &nbsp;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp;Setup Conditions&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; bottom_plane&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Condition &nbsp; Value &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; nozzle_side_wall&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Condition &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Value &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Thermal BC Type &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Temperature &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Temperature [K] &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;453.15 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Wall Motion &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Stationary Wall &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Shear Boundary Condition &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Partial Slip For Rarefied Gases &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Momentum Accommodation Coefficient &nbsp; 0.8 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Thermal Accommodation Coefficient &nbsp; &nbsp;0.85 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; nozzle_profile_wall&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Condition &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Value &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Thermal BC Type &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Temperature &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Temperature [K] &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;453.15 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Wall Motion &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Stationary Wall &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Shear Boundary Condition &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Partial Slip For Rarefied Gases &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Momentum Accommodation Coefficient &nbsp; 0.8 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Thermal Accommodation Coefficient &nbsp; &nbsp;0.85 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; plume_midplane&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Condition &nbsp; Value &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; nozzle_midplane&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Condition &nbsp; Value &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; inlet&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Condition &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Value &nbsp; &nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Gauge Total Pressure [Pa] &nbsp; 200 &nbsp; &nbsp; &nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Total Temperature [K] &nbsp; &nbsp; &nbsp; 453.15 &nbsp;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; outlet&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Condition &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Value &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&lt;br&gt;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Gauge Pressure [Pa] &nbsp; 20 &nbsp; &nbsp; &nbsp;&lt;\/p&gt;&lt;p&gt;Solver Settings&lt;br&gt;&#8212;&#8212;&#8212;&#8212;&#8212;&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp;Equations&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; Equation &nbsp; Solved &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &#8212;&#8212;&#8212;&#8212;&#8212;&#8211;&lt;br&gt;&nbsp; &nbsp; &nbsp; Flow &nbsp; &nbsp; &nbsp; yes &nbsp; &nbsp; &nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp;Numerics&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; Numeric &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Enabled &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&lt;br&gt;&nbsp; &nbsp; &nbsp; Absolute Velocity Formulation &nbsp; yes &nbsp; &nbsp; &nbsp;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp;Under-Relaxation Factors&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; Variable &nbsp; Relaxation Factor &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-&lt;br&gt;&nbsp; &nbsp; &nbsp; Solid &nbsp; &nbsp; &nbsp;1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp;Linear Solver&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; Variable &nbsp; Solver Type &nbsp; Termination Criterion &nbsp; Residual Reduction Tolerance &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;&lt;br&gt;&nbsp; &nbsp; &nbsp; Flow &nbsp; &nbsp; &nbsp; F-Cycle &nbsp; &nbsp; &nbsp; 0.1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp;Discretization Scheme&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; Variable &nbsp; Scheme &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&lt;br&gt;&nbsp; &nbsp; &nbsp; Flow &nbsp; &nbsp; &nbsp; Second Order Upwind &nbsp;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp;Time Marching&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; Parameter &nbsp; &nbsp; &nbsp; &nbsp;Value &nbsp; &nbsp; &nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-&lt;br&gt;&nbsp; &nbsp; &nbsp; Solver &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Implicit &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; Courant Number &nbsp; 5 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp;Solution Limits&lt;\/p&gt;&lt;p&gt;&nbsp; &nbsp; &nbsp; Quantity &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Limit &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;&lt;br&gt;&nbsp; &nbsp; &nbsp; Minimum Absolute Pressure [Pa] &nbsp; 1 &nbsp; &nbsp; &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; Maximum Absolute Pressure [Pa] &nbsp; 5e+10 &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; Minimum Static Temperature [K] &nbsp; 1 &nbsp; &nbsp; &nbsp;&nbsp;&lt;br&gt;&nbsp; &nbsp; &nbsp; Maximum Static Temperature [K] &nbsp; 5000 &nbsp; &nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-378157","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=\"This is my setup. I reaaly could not find out what problem there is, but maybe you can see it? FluentVersion: 3d, dp, dbns imp, lam (3d, double precision, density-based implicit, laminar)Release: 24.1.0Title: Models------ Model Settings ------------------------------------- Space\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/378157\/\" \/>\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: Partial slip for rarefied flow regime | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"This is my setup. I reaaly could not find out what problem there is, but maybe you can see it? 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