CFD Online Discussion Forums - wall velocity not zero

I don't know if this will help but here is the command, the mesh, and the velocity profile at the opening. You can see that the velocity is not zero at the wall. The same problem happens at the inlet.
Code:
 LIBRARY:



CEL:



EXPRESSIONS:



velocity = 2.65258[m*s^-1]*(1-(x^2+y^2)/(400E-6[m])^2)



END



END



MATERIAL: Air at 25 C



Material Description = Air at 25 C and 1 atm (dry)



Material Group = Air Data, Constant Property Gases



Option = Pure Substance



Thermodynamic State = Gas



PROPERTIES:



Option = General Material



Thermal Expansivity = 0.003356 [K^-1]



ABSORPTION COEFFICIENT:



Absorption Coefficient = 0.01 [m^-1]



Option = Value



END



DYNAMIC VISCOSITY:



Dynamic Viscosity = 1.831E-05 [kg m^-1 s^-1]



Option = Value



END



EQUATION OF STATE:



Density = 1.185 [kg m^-3]



Molar Mass = 28.96 [kg kmol^-1]



Option = Value



END



REFERENCE STATE:



Option = Specified Point



Reference Pressure = 1 [atm]



Reference Specific Enthalpy = 0. [J/kg]



Reference Specific Entropy = 0. [J/kg/K]



Reference Temperature = 25 [C]



END



REFRACTIVE INDEX:



Option = Value



Refractive Index = 1.0 [m m^-1]



END



SCATTERING COEFFICIENT:



Option = Value



Scattering Coefficient = 0.0 [m^-1]



END



SPECIFIC HEAT CAPACITY:



Option = Value



Specific Heat Capacity = 1.0044E+03 [J kg^-1 K^-1]



Specific Heat Type = Constant Pressure



END



THERMAL CONDUCTIVITY:



Option = Value



Thermal Conductivity = 2.61E-02 [W m^-1 K^-1]



END



END



END END FLOW:



SOLUTION UNITS:



Angle Units = [rad]



Length Units = [m]



Mass Units = [kg]



Solid Angle Units = [sr]



Temperature Units = [K]



Time Units = [s]



END



SIMULATION TYPE:



Option = Steady State



EXTERNAL SOLVER COUPLING:



Option = None



END



END



DOMAIN: Domain 1



Coord Frame = Coord 0



Domain Type = Fluid



Fluids List = Air at 25 C



Location = B13



BOUNDARY: inlet



Boundary Type = INLET



Location = inlet



BOUNDARY CONDITIONS:



FLOW REGIME:



Option = Subsonic



END



MASS AND MOMENTUM:



Normal Speed = velocity



Option = Normal Speed



END



END



END



BOUNDARY: opening



Boundary Type = OPENING



Location = opening



BOUNDARY CONDITIONS:



FLOW REGIME:



Option = Subsonic



END



MASS AND MOMENTUM:



Option = Static Pressure for Entrainment



Relative Pressure = 0 [Pa]



END



END



END



BOUNDARY: sym1



Boundary Type = SYMMETRY



Location = sym1



END



BOUNDARY: sym2



Boundary Type = SYMMETRY



Location = sym2



END



BOUNDARY: wall



Boundary Type = WALL



Location = wall



BOUNDARY CONDITIONS:



WALL INFLUENCE ON FLOW:



Option = No Slip



END



END



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 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 = Laminar



END



END



END



OUTPUT CONTROL:



RESULTS:



File Compression Level = Default



Option = Standard



END



END



SOLVER CONTROL:



ADVECTION SCHEME:



Option = High Resolution



END



CONVERGENCE CONTROL:



Length Scale Option = Conservative



Maximum Number of Iterations = 400



Timescale Control = Auto Timescale



Timescale Factor = 1.0



END



CONVERGENCE CRITERIA:



Residual Target = 0.000001



Residual Type = RMS



END



DYNAMIC MODEL CONTROL:



Global Dynamic Model Control = On



END



END END COMMAND FILE:



Version = 11.0



Results Version = 11.0 END EXECUTION CONTROL:



INTERPOLATOR STEP CONTROL:



Runtime Priority = Standard



EXECUTABLE SELECTION:



Double Precision = Off



END



MEMORY CONTROL:



Memory Allocation Factor = 1.0



END



END



PARALLEL HOST LIBRARY:



HOST DEFINITION: dolve20103



Host Architecture String = intel_xeon64.sse2_winnt5.1



Installation Root = C:\Program Files\ANSYS Inc\v%v\CFX



END



END



PARTITIONER STEP CONTROL:



Multidomain Option = Independent Partitioning



Runtime Priority = Standard



EXECUTABLE SELECTION:



Use Large Problem Partitioner = Off



END



MEMORY CONTROL:



Memory Allocation Factor = 1.0



END



PARTITIONING TYPE:



MeTiS Type = k-way



Option = MeTiS



Partition Size Rule = Automatic



END



END



RUN DEFINITION:



Definition File = C:/Temp/nozzle/nozzle400.def



Interpolate Initial Values = Off



Run Mode = Full



END



SOLVER STEP CONTROL:



Runtime Priority = Standard



EXECUTABLE SELECTION:



Double Precision = Off



END



LICENSE CONTROL:



Preferred License = 178



Shared License Port = 1958



END



MEMORY CONTROL:



Memory Allocation Factor = 1.0



END



PARALLEL ENVIRONMENT:



Number of Processes = 1



Start Method = Serial



END



END END
http://img374.imageshack.us/my.php?i...400meshns2.jpg

http://img383.imageshack.us/my.php?i...yprofilin2.jpg