|
[Sponsors] |
Simulation Refusing to Run Past 100 Iterations |
![]() |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
![]() |
![]() |
#1 |
New Member
Kamran
Join Date: Feb 2023
Posts: 10
Rep Power: 3 ![]() |
Hey, guys for some reason I cannot get my simulation to run past 100 iterations and I am confused about why. I get the following error message too and I have no idea what it means, help would be appreciated, here's the config file below!
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % SU2 configuration file % % Case description: NACA 0012 Rotor % % Author:K.Hussain % % Institution: University of Strathclyde % % Date: Feb 28th, 2023 % % File Version 7.5.1 "Blackbird" % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % ------------- DIRECT, ADJOINT, AND LINEARIZED PROBLEM DEFINITION ------------% % SOLVER= EULER % KIND_TURB_MODEL= NONE % MATH_PROBLEM= DIRECT % RESTART_SOL= NO % SYSTEM_MEASUREMENTS= SI % % -------------------- COMPRESSIBLE FREE-STREAM DEFINITION --------------------% % MACH_NUMBER= 0.0 % AOA= 7.0 % FREESTREAM_PRESSURE= 101327.0 % FREESTREAM_TEMPERATURE= 288.15 % FREESTREAM_DENSITY= 1.225 % FREESTREAM_OPTION= TEMPERATURE_FS %% REYNOLDS_NUMBER= 165389.9181 %% REYNOLDS_LENGTH= 0.05 %% INIT_OPTION= TD_CONDITIONS % REF_DIMENSIONALIZATION= DIMENSIONAL %% % ---------------------- REFERENCE VALUE DEFINITION ---------------------------% REF_ORIGIN_MOMENT_X = 0.00 %% REF_ORIGIN_MOMENT_Y = 0.00 %% REF_ORIGIN_MOMENT_Z = -0.1 % % REF_LENGTH= 0.05 % % REF_AREA= 0 % --------------------------------- FLUID MODEL -----------------------------------% % FLUID_MODEL= IDEAL_GAS %% GAMMA_VALUE= 1.4 %% GAS_CONSTANT= 287.06 % % --------------------------- VISCOSITY MODEL ---------------------------------% % VISCOSITY_MODEL= SUTHERLAND %% MU_CONSTANT= 1.716E-5 %% MU_REF= 1.716E-5 %% MU_T_REF= 273.15 %% SUTHERLAND_CONSTANT= 110.4 % % % -------------------- BOUNDARY CONDITION DEFINITION --------------------------% % MARKER_HEATFLUX= ( BLADE, 0.0 ) MARKER_FAR= ( FAR ) MARKER_INLET= ( INLET, 288.15, 101327, 0.0, 1.0, 0.0) MARKER_OUTLET= ( OUTLET, 101327) MARKER_PERIODIC= ( SIDE_1, SIDE_2, 0.0, 0.0, -0.1, 0.0, 120.0, 0.0, 0.0, 0.0, 0.0 ) %%% % ------------------------ SURFACES IDENTIFICATION ----------------------------% % MARKER_PLOTTING= ( BLADE ) % % MARKER_MONITORING= ( BLADE ) % ----------------------- DYNAMIC MESH DEFINITION -----------------------------% % GRID_MOVEMENT= ROTATING_FRAME % MACH_MOTION= 0.3456 % MOTION_ORIGIN= 0.0 0.0 -0.1 % ROTATION_RATE= 0.0, 62.44, 0.0 % ------------- COMMON PARAMETERS DEFINING THE NUMERICAL METHOD ---------------% % NUM_METHOD_GRAD= WEIGHTED_LEAST_SQUARES CFL_NUMBER= 0.01 %% CFL_ADAPT= NO %% CFL_ADAPT_PARAM= ( 0.1, 1.2, 10.0, 1000.0) %% RK_ALPHA_COEFF= ( 0.66667, 0.66667, 1.000000 ) % % ------------------------ LINEAR SOLVER DEFINITION ---------------------------% % LINEAR_SOLVER= FGMRES %% LINEAR_SOLVER_PREC= ILU %%% LINEAR_SOLVER_ERROR= 1E-16 %% LINEAR_SOLVER_ITER= 50 % % ----------------------- SLOPE LIMITER DEFINITION ----------------------------% % VENKAT_LIMITER_COEFF= 0.05 LIMITER_ITER= 999999 % % -------------------- FLOW NUMERICAL METHOD DEFINITION -----------------------% % CONV_NUM_METHOD_FLOW= JST % MUSCL_FLOW= NO % ENTROPY_FIX_COEFF= 0.001 % JST_SENSOR_COEFF= ( 0.5, 0.02 ) % SLOPE_LIMITER_FLOW= VENKATAKRISHNAN % TIME_DISCRE_FLOW= EULER_IMPLICIT % % --------------------------- SOLVER CONTROLS --------------------------% %convergeance criteria %%% TIME_DOMAIN= NO %% INNER_ITER= 999999 %%% ITER= 999999 %% CONV_RESIDUAL_MINVAL= 1E-8 %% CONV_STARTITER= 0 %% %% CONV_FIELD= (LIFT,DRAG) % % ------------------------- INPUT/OUTPUT INFORMATION --------------------------% % MESH_FILENAME= MARK1TALL.su2 % MESH_FORMAT= SU2 % MESH_OUT_FILENAME= MESH1_out.su2 % SOLUTION_FILENAME= restart_flow.csv % SOLUTION_ADJ_FILENAME= solution_adj.csv % TABULAR_FORMAT= CSV % OUTPUT_FILES= (PARAVIEW, SURFACE_PARAVIEW, RESTART_ASCII) % CONV_FILENAME= history % RESTART_FILENAME= restart_flow.csv % RESTART_ADJ_FILENAME= restart_adj.csv VOLUME_FILENAME= flow % VOLUME_ADJ_FILENAME= adjoint % VALUE_OBJFUNC_FILENAME= of_eval.csv % GRAD_OBJFUNC_FILENAME= of_grad.csv % SURFACE_FILENAME= surface_flow % SURFACE_ADJ_FILENAME= surface_adjoint %% OUTPUT_WRT_FREQ= 100 % % WRT_FORCES_BREAKDOWN = YES % HISTORY_OUTPUT = (ITER, RMS_RES, AERO_COEFF) SCREEN_OUTPUT = (INNER_ITER, RMS_DENSITY, LIFT, DRAG, CAUCHY_LIFT,CAUCHY_DRAG) as again any help is hugely appreciated! |
|
![]() |
![]() |
![]() |
![]() |
#2 |
Senior Member
bigfoot
Join Date: Dec 2011
Location: Netherlands
Posts: 596
Rep Power: 17 ![]() |
It looks like at 100 iterations it wants to write the skin friction to the paraview output files, put it cannot find this field. This might be a bug.
If you remove the surface_paraview output, does the problem go away? Code:
OUTPUT_FILES= (PARAVIEW, RESTART_ASCII) Code:
VOLUME_OUTPUT= (SOLUTION) |
|
![]() |
![]() |
![]() |
![]() |
#3 |
New Member
Kamran
Join Date: Feb 2023
Posts: 10
Rep Power: 3 ![]() |
I tried both but it didn't do anything, its a really strange bug I have never seen anything like it before on any of the forums
|
|
![]() |
![]() |
![]() |
![]() |
#4 |
Senior Member
Pedro Gomes
Join Date: Dec 2017
Posts: 466
Rep Power: 13 ![]() |
You cannot use MARKER_HEATFLUX with an Euler solver.
Euler is inviscid and MARKER_HEATFLUX is a no-slip boundary, you need to use MARKER_EULER instead. |
|
![]() |
![]() |
![]() |
![]() |
#5 |
New Member
Kamran
Join Date: Feb 2023
Posts: 10
Rep Power: 3 ![]() |
that did the trick, thank you, sir. I was initially using navier stokes but decided to just use Euler for the mesh convergence process, I just didn't remove the heat flux as I assumed it would run fine with it. You are a lifesaver thank you
![]() |
|
![]() |
![]() |
![]() |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
rhoSimpleFoam High Pressure Cell Crashes Simulation | NorthCFD | OpenFOAM Running, Solving & CFD | 0 | March 3, 2023 05:02 |
Help sought on axial compressor simulation | jyotir | OpenFOAM Running, Solving & CFD | 0 | November 17, 2021 10:49 |
Cannot run the code properly: very large time step continuity error | crst15 | OpenFOAM Running, Solving & CFD | 9 | December 14, 2014 18:17 |
calculation stops after few time steps | sivakumar | OpenFOAM Running, Solving & CFD | 7 | March 17, 2013 06:37 |
Error while running rhoPisoFoam.. | nileshjrane | OpenFOAM Running, Solving & CFD | 8 | August 26, 2010 12:50 |