求cadfix

stonebrook

不知哪位大侠有?急用
谢谢

xjj

想请教 stonebrook 前辈一个问题，在cfx论坛里看到你模拟的单个气泡，我也想做单个气泡的模拟，按照您的相法，也做了一个模拟，气泡随着时间的增加，开始消失，不知道为什么，能否指教一下，谢谢！我的email xujjun2000@sohu.com
out文件如下：
+--------------------------------------------------------------------+
|                                                                    |
|                    CFX Command Language for Run                    |
|                                                                    |
+--------------------------------------------------------------------+
EXECUTION CONTROL:
   RUN DEFINITION:
     Definition File = D:/xjj/2mmbubble_009.res
     Interpolate Initial Values = Off
     Run Mode = Full
   END
   PARALLEL HOST LIBRARY:
     HOST DEFINITION: b
       Installation Root = C:\CFXb\CFX-%v
       Host Architecture String = intel_pentium_winnt5.1
     END
   END
   PARTITIONER STEP CONTROL:
     Multidomain Option = Independent Partitioning
     Runtime Priority = Standard
     MEMORY CONTROL:
       Memory Allocation Factor = 1.0
     END
     PARTITIONING TYPE:
       MeTiS Type = k-way
       Option = MeTiS
       Partition Size Rule = Automatic
       Partition Weight Factors = 0.500, 0.500
     END
   END
   SOLVER STEP CONTROL:
     Runtime Priority = Standard
     EXECUTABLE SELECTION:
       Double Precision = Off
     END
     MEMORY CONTROL:
       Memory Allocation Factor = 1.0
     END
     PARALLEL ENVIRONMENT:
       Number of Processes = 2
       Start Method = PVM Local Parallel
       Parallel Host List = b*2
     END
   END
END
LIBRARY:
   CEL:
     EXPRESSIONS:
       DenH = 1000 [kg m^-3]
       DownH1 = 0.048 [m]
       DownH2 = 0.0454 [m]
       Rbubble1 = 0.001 [m]
       dist1 = Rbubble1-sqrt((x-0.0025[m])^2+(z-0.002[m])^2)
       UpVFbubble1 = step((dist1)/1[m])
       UpVFwater1 = 1-UpVFbubble1
       Pres1 = DenH*g*UpVFwater1*DownH1
       Rbubble2 = 0.0006 [m]
       dist2 = Rbubble2-sqrt((x-0.0025[m])^2+(z-0.0046[m])^2)
       UpVFbubble2 = step((dist2)/1[m])
       UpVFwater2 = 1-UpVFbubble2
       pres2 = DenH*g*UpVFwater2*DownH2
     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
       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
         Reference Pressure = 1 [atm]
         Reference Specific Enthalpy = 0. [J/kg]
         Reference Specific Entropy = 0. [J/kg/K]
         Reference Temperature = 25 [C]
         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
   MATERIAL: Water
     Material Description = Water (liquid)
     Material Group = Water Data, Constant Property Liquids
     Option = Pure Substance
     Thermodynamic State = Liquid
     PROPERTIES:
       Option = General Material
       Thermal Expansivity = 2.57E-04 [K^-1]
       ABSORPTION COEFFICIENT:
         Absorption Coefficient = 1.0 [m^-1]
         Option = Value
       END
       DYNAMIC VISCOSITY:
         Dynamic Viscosity = 8.899E-4 [kg m^-1 s^-1]
         Option = Value
       END
       EQUATION OF STATE:
         Density = 997.0 [kg m^-3]
         Molar Mass = 18.02 [kg kmol^-1]
         Option = Value
       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
         Reference Pressure = 1 [atm]
         Reference Specific Enthalpy = 0.0 [J/kg]
         Reference Specific Entropy = 0.0 [J/kg/K]
         Reference Temperature = 25 [C]
         Specific Heat Capacity = 4181.7 [J kg^-1 K^-1]
         Specific Heat Type = Constant Pressure
       END
       THERMAL CONDUCTIVITY:
         Option = Value
         Thermal Conductivity = 0.6069 [W m^-1 K^-1]
       END
     END
   END
END
FLOW:
   DOMAIN: Domain 1
     Coord Frame = Coord 0
     Domain Type = Fluid
     Fluids List = Air at 25 C,Water
     Location = Assembly
     BOUNDARY: out
       Boundary Type = OPENING
       Location = OUTLET
       BOUNDARY CONDITIONS:
         FLOW DIRECTION:
           Option = Normal to Boundary Condition
         END
         FLOW REGIME:
           Option = Subsonic
         END
         MASS AND MOMENTUM:
           Option = Opening Pressure and Direction
           Relative Pressure = 0 [Pa]
         END
       END
       FLUID: Air at 25 C
         BOUNDARY CONDITIONS:
           VOLUME FRACTION:
             Option = Value
             Volume Fraction = 1
           END
         END
       END
       FLUID: Water
         BOUNDARY CONDITIONS:
           VOLUME FRACTION:
             Option = Value
             Volume Fraction = 0
           END
         END
       END
     END
     BOUNDARY: Domain 1 Default
       Boundary Type = WALL
       Location = INLET,SURFS A,SURFS B
       BOUNDARY CONDITIONS:
         WALL INFLUENCE ON FLOW:
           Option = No Slip
         END
       END
       FLUID PAIR: Air at 25 C | Water
         BOUNDARY CONDITIONS:
           WALL ADHESION:
             Option = None
           END
         END
       END
     END
     BOUNDARY: sym1
       Boundary Type = SYMMETRY
       Location = FRONT
     END
     BOUNDARY: sym2
       Boundary Type = SYMMETRY
       Location = BACK
     END
     DOMAIN MODELS:
       BUOYANCY MODEL:
         Buoyancy Reference Density = 1.3 [kg m^-3]
         Gravity X Component = 0 [m s^-2]
         Gravity Y Component = 0 [m s^-2]
         Gravity Z Component = -9.8 [m s^-2]
         Option = Buoyant
         BUOYANCY REFERENCE LOCATION:
           Option = Automatic
         END
       END
       DOMAIN MOTION:
         Option = Stationary
       END
       MESH DEFORMATION:
         Option = None
       END
       REFERENCE PRESSURE:
         Reference Pressure = 1 [atm]
       END
     END
     FLUID: Air at 25 C
       FLUID MODELS:
         FLUID BUOYANCY MODEL:
           Option = Density Difference
         END
         MORPHOLOGY:
           Option = Continuous Fluid
         END
       END
     END
     FLUID: Water
       FLUID MODELS:
         FLUID BUOYANCY MODEL:
           Option = Density Difference
         END
         MORPHOLOGY:
           Option = Continuous Fluid
         END
       END
     END
     FLUID MODELS:
       COMBUSTION MODEL:
         Option = None
       END
       HEAT TRANSFER MODEL:
         Fluid Temperature = 25 [C]
         Homogeneous Model = True
         Option = Isothermal
       END
       THERMAL RADIATION MODEL:
         Option = None
       END
       TURBULENCE MODEL:
         Option = Laminar
       END
     END
     FLUID PAIR: Air at 25 C | Water
       Surface Tension Coefficient = 0.07256 [N m^-1]
       INTERPHASE TRANSFER MODEL:
         Option = Free Surface
       END
       MASS TRANSFER:
         Option = None
       END
       SURFACE TENSION MODEL:
         Option = Continuum Surface Force
         Primary Fluid = Air at 25 C
         Volume Fraction Smoothing Type = Volume-Weighted
       END
     END
     MULTIPHASE MODELS:
       Homogeneous Model = On
       FREE SURFACE MODEL:
         Option = Standard
       END
     END
   END
   INITIALISATION:
     Option = Automatic
     FLUID: Air at 25 C
       INITIAL CONDITIONS:
         VOLUME FRACTION:
           Option = Automatic with Value
           Volume Fraction = UpVFbubble1
         END
       END
     END
     FLUID: Water
       INITIAL CONDITIONS:
         VOLUME FRACTION:
           Option = Automatic with Value
           Volume Fraction = UpVFwater1
         END
       END
     END
     INITIAL CONDITIONS:
       Velocity Type = Cartesian
       CARTESIAN VELOCITY COMPONENTS:
         Option = Automatic with Value
         U = 0 [m s^-1]
         V = 0 [m s^-1]
         W = 0 [m s^-1]
       END
       STATIC PRESSURE:
         Option = Automatic with Value
         Relative Pressure = Pres1
       END
     END
   END
   OUTPUT CONTROL:
     RESULTS:
       File Compression Level = Default
       Option = Standard
     END
     TRANSIENT RESULTS: Transient Results 1
       File Compression Level = Default
       Option = Standard
       Time Interval = 0.002
     END
   END
   SIMULATION TYPE:
     Option = Transient
     INITIAL TIME:
       Option = Automatic with Value
       Time = 0
     END
     TIME DURATION:
       Option = Total Time
       Total Time = 1
     END
     TIME STEPS:
       Option = Timesteps
       Timesteps = 0.0001
     END
   END
   SOLUTION UNITS:
     Angle Units = [rad]
     Length Units = [m]
     Mass Units = [kg]
     Solid Angle Units = [sr]
     Temperature Units = [K]
     Time Units =
   END
   SOLVER CONTROL:
     ADVECTION SCHEME:
       Option = High Resolution
     END
     CONVERGENCE CONTROL:
       Maximum Number of Coefficient Loops = 15
       Timescale Control = Coefficient Loops
     END
     CONVERGENCE CRITERIA:
       Residual Target = 0.00001
       Residual Type = RMS
     END
     TRANSIENT SCHEME:
       Option = Second Order Backward Euler
     END
   END
END
COMMAND FILE:
   Version = 10.0
   Results Version = 10.0
END

+--------------------------------------------------------------------+
|                                                                    |
|                            Partitioning                            |
|                                                                    |
+--------------------------------------------------------------------+