convergence issues on steady state solver
i`m new to cfx. i have a converged solution on my course mesh (0.9M elements). however i am having a problem to get a convergence to my steady state solver in a finer mesh (1.2M elements) . i have already go through all the manual and help file that provide in this forum but i still cannot meet the loose convergence criteria (RMS < 1x104). i have started by fine tuning the mesh, use increase and decrease of auto timescale, physical time scale and local time scale factor but the residual remains above the 1x104 even my iteration have reached about 1500. however i have put lift and drag coefficient as my monitor point and it shows almost constant value after 300400 iteration. so i suspected, it maybe because of my BC. i would appreciate if somebody can give me some comments and suggestions on my BC as stated below. A part from of RMS residual variable what other value should i monitor in solver manager as guide towards convergence?
DOMAIN: Fluid Coord Frame = Coord 0 Domain Type = Fluid Location = B82 BOUNDARY: Airfoil Boundary Type = WALL Location = Airfoil BOUNDARY CONDITIONS: MASS AND MOMENTUM: Option = No Slip Wall END WALL ROUGHNESS: Option = Smooth Wall END END END BOUNDARY: Fluid Default Boundary Type = WALL Location = F83.82,F85.82,F86.82 BOUNDARY CONDITIONS: MASS AND MOMENTUM: Option = Free Slip Wall END END END BOUNDARY: Inlet Boundary Type = INLET Location = Inlet BOUNDARY CONDITIONS: FLOW REGIME: Option = Subsonic END MASS AND MOMENTUM: Option = Cartesian Velocity Components U = Ux V = Uy W = 0 [m s^1] END TURBULENCE: Fractional Intensity = 0.01 Option = Intensity and Auto Compute Length END END END BOUNDARY: Outlet Boundary Type = OUTLET Location = Outlet BOUNDARY CONDITIONS: FLOW REGIME: Option = Subsonic END MASS AND MOMENTUM: Option = Static Pressure Relative Pressure = 0 [Pa] END END END BOUNDARY: Symmetry Boundary Type = SYMMETRY Location = Symmetry END DOMAIN MODELS: BUOYANCY MODEL: Option = Non Buoyant END DOMAIN MOTION: Option = Stationary END MESH DEFORMATION: Option = None END REFERENCE PRESSURE: Reference Pressure = 1 [atm] END END FLUID DEFINITION: Fluid 1 Material = Air at 25 C Option = Material Library MORPHOLOGY: Option = Continuous Fluid END END FLUID MODELS: COMBUSTION MODEL: Option = None END HEAT TRANSFER MODEL: Fluid Temperature = 25 [C] Option = Isothermal END THERMAL RADIATION MODEL: Option = None END TURBULENCE MODEL: Option = SST END TURBULENT WALL FUNCTIONS: Option = Automatic END END END OUTPUT CONTROL: MONITOR OBJECTS: MONITOR BALANCES: Option = Full END MONITOR FORCES: Option = Full END MONITOR PARTICLES: Option = Full END MONITOR POINT: CD Expression Value = cD Option = Expression END MONITOR POINT: CL Expression Value = cL Option = Expression END MONITOR RESIDUALS: Option = Full END MONITOR TOTALS: Option = Full END END RESULTS: File Compression Level = Default Option = Standard END END SOLVER CONTROL: Turbulence Numerics = First Order ADVECTION SCHEME: Option = High Resolution END CONVERGENCE CONTROL: Local Timescale Factor = 0.01 Maximum Number of Iterations = 1000 Minimum Number of Iterations = 1 Timescale Control = Local Timescale Factor END CONVERGENCE CRITERIA: Residual Target = 1e04 Residual Type = RMS 

All times are GMT 4. The time now is 20:15. 