[[sunfluidh:sunfluidh_examples_data_set|Click here to come back to the previous page]] =========================================================================== =========================================================================== MAIN INPUT DATA FILE : 2D EDDY ON A PERIODIC DOMAIN (DIMENSIONAL RELEASE) INCOMPRESSIBLE FLOW ISOTHERM DIMENSIONAL FORMULATION Initialization of the velocity field is carried out from the user's routine Eddy_Velocity_Field in the module named module_user_define_init_fields.f90 access by the data file ---> Initial_Field_Option_For_Velocity_I =========================================================================== =========================================================================== ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ GENERAL LAYOUT ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ &Version File_Version="VERSION2.0"/ =========================================================================== FLUID PROPERTIES =========================================================================== &Fluid_Properties Reference_Density= 860.0 , Reference_Dynamic_Viscosity = 43.D-03 / =========================================================================== INITIALIZATION OF THE VELOCITY COMPONENTS, THE TEMPERATURE AND SPECIES =========================================================================== Initial_Field_Option_For_Velocity_I : Special initialisation of a 2D eddy defined by the user's routine Eddy_Velocity_Field in the module named module_user_define_init_fields.f90 &Velocity_Initialization I_Velocity_Reference_Value= 0.00 , J_Velocity_Reference_Value= 0.00, K_Velocity_Reference_Value= 0.00 , Initial_Field_Option_For_Velocity_I= 5 / =========================================================================== GRAVITY =========================================================================== No gravity =========================================================================== DOMAIN FEATURES =========================================================================== &Domain_Features Geometric_Layout= 0, Start_Coordinate_I_Direction=-0.50 , End_Coordinate_I_Direction= 0.50, Start_Coordinate_J_Direction=-0.50 , End_Coordinate_J_Direction= 0.50, Start_Coordinate_K_Direction= 0.00 , End_Coordinate_K_Direction= 0.00, Cells_Number_I_Direction= 128 ,Cells_Number_J_Direction= 128 ,Cells_Number_K_Direction= 1, Regular_Mesh= .true. / ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ DEFINITION OF BOUNDARY CONDITIONS ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ============================================================================= WALL BOUNDARY CONDITION SETUP ============================================================================= No wall ============================================================================= INLET AND OUTLET BOUNDARY CONDITIONS ============================================================================= No inlet, No outlet ============================================================================= BORDER BOUNDARY CONDITIONS ============================================================================= Keep in mind that the domain is enclosed by default. The walls at the ends of the domain are here replaced by periodical conditions &Border_Domain_Boundary_Conditions West_BC_Name= "Periodic" , East_BC_Name= "Periodic" , Back_BC_Name= "Periodic" , Front_BC_Name= "Periodic" / ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 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 Relaxation_Coefficient= 1.8 , !--- Relaxation coefficient of the SOR method ( 1 <= Relaxation_Coefficient < 2) Number_max_Grid= 6, !--- Number of grid levels Number_max_Cycle= 5, !--- 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-10 / !--- convergence tolerance on the residu of the Poisson's equation ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ SIMULATION MANAGEMENT ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Time step calculated from a CFL coefficient &Simulation_Management Restart_Parameter= 0 , Steady_Flow_Stopping_Criterion_Enabled = .false. , Steady_Flow_Stopping_Criterion = 1.D-22, Temporal_Iterations_Number = 50000 , Final_Time = 2.0D+01 , TimeStep_Type = 1 , CFL_min= 0.25 , CFL_max= 0.25, Iterations_For_Timestep_Linear_Progress= 1 , Timestep_Min = 1.00 , Timestep_Max = 1.00 , Simulation_Backup_Rate = 200 , Simulation_Checking_Rate = 51 / ============================================================================= PROBES SETUP ============================================================================= 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= 0.0 , Xj= 0.0 , Xk= 0.0 / &Probe_Location Xi= 0.1 , Xj= 0.1 , Xk= 0.0 / &Simulation_Management Probe_TimeIterationRecordingRate= 1 , Probe_StartTimeIterationRecording= 0 , Probe_RecordingReset=.false. / ============================================================================= INSTANTANEOUS FIELD SETUP ============================================================================= &Field_Recording_Setup Precision_On_Instantaneous_Fields= 2 / &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 = "P" / Pressure related to the velocity field END OF FILE [[sunfluidh:sunfluidh_examples_data_set|Click here to come back to the previous page]]