sunfluidh:2d_channel_flow_with_heated_bar_incomp_flow_2
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- input3d.dat
=========================================================================== =========================================================================== MAIN INPUT DATA FILE : 2D CHANNEL FLOW WITH A SQUARE BAR INCOMPRESSIBLE FLOW THERMALLY CONDUCTIVE SQUARE BAR WARMED FROM THE TOP WALL CHANNEL WALLS AT Tc EXCEPT OVER THE CONTACT AREA (BAR-CHANNEL WALL) : A LOCAL HEAT FLUX IS IMPOSED TEMPERATURE OF THE INFLOW : Tc GRAVITY & BUOYANCY ARE NEGLECTED DIMENSIONLESS LAYOUT : Length scale : h (the channel height) Reynolds number Re_h= rho_0.U_0.h/nu= 100 dimensionless quantities : velocity U* = U/U_0 temperature T*= T/T0 with T0= Tc ---> Tc*= 1 kinetic viscosity= 1/Re_h Physical proprties of the bar : Cp*= 1, rho_solid*= 1 , lambda_solid*= 1 , heat flux from the wall Qo=1 dimensionless domain : Lx/h= 10 Initialisation = uniform velocity field inlet flowrate = uniform profil Tc Qo ------------------------------------------ | | |__| ---> inflow outflow ---> (Tc) ------------------------------------------ Tc J ^ | | ---->I =========================================================================== =========================================================================== &Version File_Version="VERSION2.0"/ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ GENERAL LAYOUT (DIMENSIONLESS) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ &Fluid_Properties Reference_Dynamic_Viscosity = 1.00D-02, Reference_Density= 1.0 , Heat_Transfer_Flow = .true., Reference_Temperature= 1.0, Prandtl = 0.71 / &Velocity_Initialization I_Velocity_Reference_Value = 1.0 , J_Velocity_Reference_Value = 0.0 , K_Velocity_Reference_Value = 0.0 / =========================================================================== DOMAIN FEATURES (DIMENSIONLESS) =========================================================================== &Domain_Features Start_Coordinate_I_Direction= 0.00 , End_Coordinate_I_Direction= 10.00, Start_Coordinate_J_Direction= 0.00 , End_Coordinate_J_Direction= 1.00, Start_Coordinate_K_Direction= 0.00 , End_Coordinate_K_Direction= 0.00, Cells_Number_I_Direction= 256 ,Cells_Number_J_Direction= 64 ,Cells_Number_K_Direction= 1, Regular_Mesh= .true. / ------------------------------------------------------- GEOMETRY OF THE IMMERSED BODIES ------------------------------------------------------- First immersed body (thermally conductive material) &Polyhedral_Immersed_Bodies Xi_1= 4.5 , Xj_1= 0.5 ,Xk_1= 0.0 , Xi_2= 5.5 , Xj_2= 0.5 ,Xk_2= 0.0 , Xi_3= 5.5 , Xj_3= 1.0 ,Xk_3= 0.0 , Xi_4= 4.5 , Xj_4= 1.0 ,Xk_4= 0.0 , Wall_BC_DataSetName ="Set2" / Second immersed body (body embedded in the front wall of the channel in order to define a local boundary condition at this place) Note : the low wall of the body (front wall) must fit the top wall of the domain (front wall) The coordinates of the top wall of the body must be located out of the computational domain and out of the ghost-cells &Polyhedral_Immersed_Bodies Xi_1= 4.5 , Xj_1= 1.0 ,Xk_1= 0.0 , Xi_2= 5.5 , Xj_2= 1.0 ,Xk_2= 0.0 , Xi_3= 5.5 , Xj_3= 2.0 ,Xk_3= 0.0 , Xi_4= 4.5 , Xj_4= 2.0 ,Xk_4= 0.0 , Wall_BC_DataSetName ="Set3" / ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ DEFINITION OF BOUNDARY CONDITIONS ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ============================================================================= WALL BOUNDARY CONDITION SETUP (DIMENSIONLESS) ============================================================================= --------------------------------------------------- DATA SET FOR THE WALL BOUNDARY CONDITIONS --------------------------------------------------- First set of wall boundary conditions (applied to the walls of the channel) : imposed temperature : Tc= 0 &Heat_Wall_Boundary_Condition_Setup Wall_BC_DataSetName ="Set1", West_Heat_BC_Option = 0 , East_Heat_BC_Option = 0 , Back_Heat_BC_Option = 0 , Front_Heat_BC_Option = 0 , West_Wall_BC_Value= 0.0 , East_Wall_BC_Value= 0.0 , Back_Wall_BC_Value= 0.0 , Front_Wall_BC_Value= 0.0 / ------------------------------------------ Second set of wall boundary conditions (applied to the square bar) : Special case : the solid is thermally conductive Note : Every xxx_Heat_BC_Option must be set to 2 &Heat_Wall_Boundary_Condition_Setup Wall_BC_DataSetName ="Set2", West_Heat_BC_Option = 2 , East_Heat_BC_Option = 2 , Back_Heat_BC_Option = 2 , Front_Heat_BC_Option = 2 , Material_Thermal_Conductivity= 1.00 , Material_Mass_Heat_Capacity= 1.00 , Material_Density= 1.00 / ------------------------------------------ Third set of wall boundary conditions (applied to the solid embedded in the front wall of the channel in order to define loccally an other boundary condition : imposed Heat flux : Qc= -1.) Note : The flux is < 0 for heating the computational domain and > 0 for cooling it. Only the front wall needs to be define as boundary condition; Others walls do not adjoin the domain &Heat_Wall_Boundary_Condition_Setup Wall_BC_DataSetName ="Set3", West_Heat_BC_Option = , East_Heat_BC_Option = 0 , Back_Heat_BC_Option = 0 , Front_Heat_BC_Option = 1 , West_Wall_BC_Value= 0.0 , East_Wall_BC_Value= 0.0 , Back_Wall_BC_Value= 0.0 , Front_Wall_BC_Value=-1.0 / ------------------------------------------ The usual wall boundary conditions for the velocity are used (no-slip and impermeability conditions). As they are the conditions by default, they are not explicitly written ============================================================================= INLET AND OUTLET BOUNDARY CONDITIONS (DIMENSIONLESS) ============================================================================= Keep in mind that the domain is enclosed by default. Here the inlet and outlet conditions are located at the ends of the domain. They replace the walls by default over the insterested areas. Inlet : Uniform flowrate profil &Inlet_Boundary_Conditions Type_of_BC= "INLET", Direction_Normal_Plan= 1 , Flow_Direction= 1 , Plan_Location_Coordinate= 0.0 , Start_Coordinate_of_First_Span = 0.00 , End_Coordinate_of_First_Span = 1.00 , Start_Coordinate_of_Second_Span= 0.0 , End_Coordinate_of_Second_Span= 0.0 , Normal_Velocity_Reference_Value= 1.0 , Temperature_Reference_Value= 1.0 / &Outlet_Boundary_Conditions Type_of_BC= "OUTLET", Direction_Normal_Plan= 1 , Flow_Direction= 1 , Plan_Location_Coordinate= 10.0 , Start_Coordinate_of_First_Span = 0.00 , End_Coordinate_of_First_Span = 1.00 , Start_Coordinate_of_Second_Span= 0.0 , End_Coordinate_of_Second_Span= 0.0 / ============================================================================= BORDER BOUNDARY CONDITIONS ============================================================================= !--- No new boundary conditions are defined at the ends of the domain : walls by default are preserved, the inlet and outlet previously are defined above) !--- As "None" is the default setting for this namelist, it can be removed &Border_Domain_Boundary_Conditions West_BC_Name= "None" , East_BC_Name= "None" , Back_BC_Name= "None" , Front_BC_Name= "None" , North_BC_Name= "None" , South_BC_Name= "None" / ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ NUMERICAL METHODS ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ &Numerical_Methods NS_NumericalMethod= "BDF2-SchemeO2" , !--- BDF2 + 2nd order centered scheme MomentumConvection_Scheme="Centered-O2-Conservative" , !--- conservative form for solving the velocity (momentum) equation Poisson_NumericalMethod="Home-SORMultigrid-ConstantMatrixCoef" / !--- SOR + multigrid method (homemade release) for solving the Poisson's equation with constant coefficient matrix &HomeData_PoissonSolver SolverName="SOR" , !--- Successive Over-Relaxation (SOR) method based on the red-black algorithm Relaxation_Coefficient= 1.7 , !--- Relaxation coefficient of the SOR method ( 1 <= Relaxation_Coefficient < 2) Number_max_Grid= 4, !--- Number of grid levels Number_max_Cycle= 10, !--- Number of multigrid cycles Number_Iteration= 0, !--- Maximum number of SOR iterations method applied for any grid level, if 0 (or removed) the 3 next data are considered Number_Iteration_FineToCoarseGrid= 15, !--- number of SOR iterations applied on any grid level during the restriction step (before the coarsest grid computation) Number_Iteration_CoarseToFineGrid= 15, !--- number of SOR iterations applied on any grid level during the prolongation step (after the Coarsest grid computation) Number_Iteration_CoarsestGrid= 15 , !--- number of SOR iterations applied on the coarsest grid Convergence_Criterion= 1.D-08 / !--- convergence tolerance on the residu of the Poisson's equation ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ SIMULATION MANAGEMENT ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ The numerical time step is imposed &Simulation_Management Restart_Parameter= 0 , Steady_Flow_Stopping_Criterion_Enabled = .true. , Steady_Flow_Stopping_Criterion = 1.D-16, Temporal_Iterations_Number = 100000 , Final_Time = 2.D+01 , TimeStep_Type = 1 , Timestep_Max = 5.D-03 , CFL_Max= 0.5 , Simulation_Backup_Rate = 1000 , Simulation_Checking_Rate = 101 / ============================================================================= PROBES MANAGEMENT ============================================================================= Probes order U , V , W , T , P , RHO &Probe_Quantities_Enabled Temporal_Series_For_Quantity_Enabled(:) = .true., .true., .false., .false., .true. , .false. / &Probe_Location Xi= 3.0 , Xj= 0.5 , Xk= 0.0 / &Probe_Location Xi= 6.0 , Xj= 0.5 , Xk= 0.0 / &Simulation_Management Probe_TimeIterationRecordingRate= 10 , Probe_StartTimeIterationRecording= 0 , Probe_RecordingReset=.false. / ============================================================================= FIELDS RECORDING SETUP ============================================================================= &Field_Recording_Setup Precision_On_Instantaneous_Fields= 2 / !--- Snapshots &Simulation_Management InstantaneousFields_RecordingReset=.false. , InstantaneousFields_TimeRecordingRate= 1.0E+00 , InstantaneousFields_RecordingStartTime= 0.D-00 / &Instantaneous_Fields_Listing Name_of_Field = "U " / First velocity component &Instantaneous_Fields_Listing Name_of_Field = "V " / Second velocity component &Instantaneous_Fields_Listing Name_of_Field = "T " / Temperature !--- Statistics &Simulation_Management Start_Time_For_Statistics= 1.D+03 , Time_Range_Statistic_Calculation = 5.D+00 / &Statistical_Fields_Listing Name_of_Field = "<U> "/ &Statistical_Fields_Listing Name_of_Field = "<V> "/
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sunfluidh/2d_channel_flow_with_heated_bar_incomp_flow_2.txt · Dernière modification : 2020/01/30 12:32 de yann