Add nested FGMRES with BCGSTAB test case cfg

Author: eorbay-metu

TestCases/rans/naca0012_nested_fgmres/turb_NACA0012_sa_nested.cfg

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+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%                                                                              %
+% SU2 configuration file                                                       %
+% Case description: 2D NACA 0012 Airfoil Validation Case (compressible)        %
+%                   http://turbmodels.larc.nasa.gov/naca0012_val_sa.html       %
+% Author: Francisco Palacios                                                   %
+% Institution: Stanford University                                             %
+% Date: Feb 18th, 2013                                                         %
+% File Version 8.3.0 "Harrier"                                                 %
+%                                                                              %
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+% ------------- DIRECT, ADJOINT, AND LINEARIZED PROBLEM DEFINITION ------------%
+%
+SOLVER= RANS
+KIND_TURB_MODEL= SA
+SA_OPTIONS= NEGATIVE, EXPERIMENTAL
+MATH_PROBLEM= DIRECT
+RESTART_SOL= NO
+
+% -------------------- COMPRESSIBLE FREE-STREAM DEFINITION --------------------%
+%
+MACH_NUMBER= 0.05
+AOA= 0.0
+FREESTREAM_TEMPERATURE= 300.0
+REYNOLDS_NUMBER= 6.0E6
+REYNOLDS_LENGTH= 1.0
+
+% ---------------------- REFERENCE VALUE DEFINITION ---------------------------%
+%
+REF_ORIGIN_MOMENT_X = 0.25
+REF_ORIGIN_MOMENT_Y = 0.00
+REF_ORIGIN_MOMENT_Z = 0.00
+REF_LENGTH= 1.0
+REF_AREA= 1.0
+REF_DIMENSIONALIZATION= FREESTREAM_PRESS_EQ_ONE
+
+% -------------------- BOUNDARY CONDITION DEFINITION --------------------------%
+%
+MARKER_HEATFLUX= ( airfoil, 0.0 )
+MARKER_FAR= ( farfield )
+MARKER_PLOTTING= ( airfoil )
+MARKER_MONITORING= ( airfoil )
+
+% ------------- COMMON PARAMETERS DEFINING THE NUMERICAL METHOD ---------------%
+%
+NUM_METHOD_GRAD= WEIGHTED_LEAST_SQUARES
+NUM_METHOD_GRAD_RECON= LEAST_SQUARES
+CFL_NUMBER= 200.0
+MAX_DELTA_TIME= 1E10
+CFL_ADAPT= NO
+CFL_ADAPT_PARAM= ( 1.5, 0.5, 1.0, 100.0 )
+ITER= 99999
+
+% ----------------------- SLOPE LIMITER DEFINITION ----------------------------%
+VENKAT_LIMITER_COEFF= 0.03
+LIMITER_ITER= 99999
+
+% ------------------------ LINEAR SOLVER DEFINITION ---------------------------%
+%
+% ------------------------ LINEAR SOLVER DEFINITION ---------------------------%
+%
+LINEAR_SOLVER= FGMRES
+%
+% Use nested Krylov solver (YES, NO).
+% When YES: FGMRES uses an inner Krylov solver (e.g. BCGSTAB).
+LINEAR_SOLVER_NESTED= YES
+
+% Inner solver used only when LINEAR_SOLVER_NESTED = YES.
+% Options: BCGSTAB
+LINEAR_SOLVER_INNER= BCGSTAB
+
+LINEAR_SOLVER_PREC= LU_SGS
+LINEAR_SOLVER_ERROR= 1E-5
+LINEAR_SOLVER_ITER= 5
+
+% -------------------- FLOW NUMERICAL METHOD DEFINITION -----------------------%
+%
+CONV_NUM_METHOD_FLOW= ROE
+MUSCL_FLOW= YES
+JST_SENSOR_COEFF= ( 0.5, 0.02 )
+TIME_DISCRE_FLOW= EULER_IMPLICIT
+
+% -------------------- TURBULENT NUMERICAL METHOD DEFINITION ------------------%
+%
+CONV_NUM_METHOD_TURB= SCALAR_UPWIND
+MUSCL_TURB= YES
+SLOPE_LIMITER_TURB= NONE
+TIME_DISCRE_TURB= EULER_IMPLICIT
+CFL_REDUCTION_TURB= 1.0
+
+% --------------------------- CONVERGENCE PARAMETERS --------------------------%
+CONV_RESIDUAL_MINVAL= -12
+CONV_STARTITER= 10
+CONV_CAUCHY_ELEMS= 100
+CONV_CAUCHY_EPS= 1E-6
+
+% Output the performance summary to the console at the end of SU2_CFD
+WRT_PERFORMANCE= YES
+
+
+% ------------------------- INPUT/OUTPUT INFORMATION --------------------------%
+%
+MESH_FILENAME= n0012_897-257.su2
+MESH_FORMAT= SU2
+MESH_OUT_FILENAME= mesh_out
+SOLUTION_FILENAME= solution_flow_sa
+SOLUTION_ADJ_FILENAME= solution_adj
+TABULAR_FORMAT= CSV
+CONV_FILENAME= history
+RESTART_FILENAME= restart_flow
+RESTART_ADJ_FILENAME= restart_adj
+VOLUME_FILENAME= flow
+VOLUME_ADJ_FILENAME= adjoint
+GRAD_OBJFUNC_FILENAME= of_grad
+SURFACE_FILENAME= surface_flow
+SURFACE_ADJ_FILENAME= surface_adjoint
+OUTPUT_WRT_FREQ= 10000
+SCREEN_OUTPUT=(WALL_TIME, INNER_ITER, RMS_DENSITY, RMS_NU_TILDE, LIFT, DRAG, LINSOL_ITER, LINSOL_RESIDUAL, LINSOL_ITER_TURB, LINSOL_RESIDUAL_TURB, TOTAL_HEATFLUX)