sunfluidh:2d_channel_flow_with_heated_bar_incomp_flow
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MAIN INPUT DATA FILE : 2D CHANNEL FLOW WITH A SQUARE BAR (OBSTACLE)
INCOMPRESSIBLE FLOW
HEATED SQUARE BAR AT TEMPERATURE Th = 2.Tc
OTHER WALLS AT Tc
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 and Th*= 2
kinetic viscosity= 1/Re_h
dimensionless domain : Lx/h= 10
Initialisation = uniform velocity field
inlet flowrate = uniform profil
INCOMPRESSIBLE DOWNSTEP FLOW
Tc
------------------------------------------
|Th|
|__|
---> inflow outflow --->
(Tc)
------------------------------------------
Tc
J
^
|
|
---->I
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&Version File_Version="VERSION2.0"/
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GENERAL LAYOUT
(DIMENSIONLESS)
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&Fluid_Properties Reference_Dynamic_Viscosity = 1.00D-02, Reference_Density= 1.0 , Reference_Temperature= 1.0 /
&Velocity_Initialization I_Velocity_Reference_Value = 1.0 , J_Velocity_Reference_Value = 0.0 , K_Velocity_Reference_Value = 0.0 /
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DOMAIN FEATURES
(DIMENSIONLESS)
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&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. /
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DEFINITION OF BOUNDARY CONDITIONS
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=============================================================================
WALL BOUNDARY CONDITION SETUP
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No wall
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INLET AND OUTLET BOUNDARY CONDITIONS
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No inlet, No outlet
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BORDER BOUNDARY CONDITIONS
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&Border_Domain_Boundary_Conditions West_Border= 4 , East_Border= 4 , Back_Border= 4 , Front_Border= 4 , North_Border = 0 , South_Border = 0 /
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NUMERICAL METHODS
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Default initialization:
Numerical scheme for Navier-Stokes equations : 2nd centrered order in space, 2nd order in time (BDF2 : 2nd oder Backward Differentiation Formulation)
for Poisson equation : SOR iterative method coupled with a multigrid approach
Parameters for solving Poisson equation (multigrid parameters) :
&Numerical_Methods Numerical_Scheme= 1 ,
Convective_Flux_Discretization_Type = 1
Numerical_Method_Poisson_Equation= 1,
Number_max_Grid= 6 , Number_max_Cycle= 5 , Number_Iteration= 15 ,
Relaxation_Coefficient = 1.80 , Convergence_Criterion = 1.D-10 /
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SIMULATION MANAGEMENT
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Time step calculated from a CFL coefficient
&Simulation_Management Restart_Parameter= 0 ,
Steady_Flow_Stopping_Criterion_Enabled = .true. , 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 = 2.D-01 , Timestep_Max = 2.D-01 ,
Simulation_Backup_Rate = 200 , Simulation_Checking_Rate = 51 /
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PROBES MANAGEMENT
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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 , End_of_Data_Block= .true. /
&Simulation_Management Probe_Recording_Rate = 1 /
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FIELDS RECORDING DECLARATION
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&Field_Recording_Setup Precision_On_Instantaneous_Fields= 2 /
&Simulation_Management Fields_Recording_Rate = 1.0D-00 /
&Instantaneous_Fields_Listing Name_of_Field = "U" , Recording_Enabled = .true. / First velocity component
&Instantaneous_Fields_Listing Name_of_Field = "V" , Recording_Enabled = .true. / Second velocity component
&Instantaneous_Fields_Listing Name_of_Field = "W" , Recording_Enabled = .false. / Third velocity component
&Instantaneous_Fields_Listing Name_of_Field = "P" , Recording_Enabled = .true. / Pressure related to the velocity field
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sunfluidh/2d_channel_flow_with_heated_bar_incomp_flow.1480501867.txt.gz · Dernière modification : 2016/11/30 11:31 de yann