CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   CFX (http://www.cfd-online.com/Forums/cfx/)
-   -   How to use / How to find IPMT? (http://www.cfd-online.com/Forums/cfx/82310-how-use-how-find-ipmt.html)

camoesas November 23, 2010 05:37

How to use / How to find IPMT?
 
Hello Everybody,

I am simulating a cavitating multiphase simulation with Ansys 12.1
And I want to monitor and Postprocess the Interphase Mass Transfer Rate (IPMT) The Ansys User guide says that IPMT is accessible in the extended variable list. But it isnt!

In the Steam Jet Tutorial it is necessary to import the variable via CCL File. My CCL File:

Code:

RULES:
  PARAMETER: Output Variables List
    Parameter Type = String List
    Solver Name = CVAR: \
                    VARIABLE, \
                    ADDITIONAL VARIABLE, \
                    FLUID DEFINITION.VARIABLE, \
                    PARTICLE DEFINITION.VARIABLE, \
                    PARTICLE DEFINITION.MATERIAL.VARIABLE, \
                    FLUID DEFINITION.ADDITIONAL VARIABLE, \
                    SOLID DEFINITION.VARIABLE, \
                    SOLID DEFINITION.ADDITIONAL VARIABLE, \
                    MATERIAL.VARIABLE, \
                    REACTION.VARIABLE, \
                    FLUID DEFINITION.MATERIAL.VARIABLE, \
                    FLUID DEFINITION.REACTION.VARIABLE, \
                    ADDITIONAL VARIABLE.VARIABLE, \
                    FLUID DEFINITION.ADDITIONAL VARIABLE.VARIABLE, \
                    SOLID DEFINITION.ADDITIONAL VARIABLE.VARIABLE, \
                    POLYDISPERSED FLUID.VARIABLE, \
                    POLYDISPERSED FLUID.SIZE GROUP.VARIABLE, \
                    FLUID DEFINITION.GRAY GAS.VARIABLE, \
                    SOLID DEFINITION.GRAY GAS.VARIABLE, \
                    FLUID DEFINITION.SPECTRAL BAND.VARIABLE, \
                    SOLID DEFINITION.SPECTRAL BAND.VARIABLE, \
                    FLUID PAIR.VARIABLE
    Dynamic Reread Item = Yes
  END
END
LIBRARY:
  VARIABLE: ipmt rate
    Option = Definition
    MMS Name = IPMT_MTOT
    Long Name = Interphase Mass Transfer Rate
    Tensor Type = SCALAR
    Quantity = Mass Source
    Status = DR
    CEL Root = /FLOW/PHYSICS/{Zone}/{PhasePair}
    User Level = 3
    Output to Jobfile = Yes
    Output to Postprocessor = Yes
    Physical Availability = MULTIPHASE
    Variable Scope = PHASE
    General Availability = CEL, RESULTS
 END
END
LIBRARY:
  ADDITIONAL VARIABLE: MassTransfer
    Option = Definition
    Tensor Type = SCALAR
    Units = [kg/s/m^3]
    Variable Type = Specific
  END
END
FLOW: Flow Analysis 1
  DOMAIN: Aussen
    FLUID MODELS:
      ADDITIONAL VARIABLE: MassTransfer
        Option = Fluid Dependent
      END
      FLUID: Fluid 1
        ADDITIONAL VARIABLE: MassTransfer
          Additional Variable Value = Fluid 1 | Fluid 2.Interphase Mass Transfer Rate
          Option = Algebraic Equation
        END
      END
    END
  END
END
FLOW: Flow Analysis 1
  DOMAIN: Innen
    FLUID MODELS:
      ADDITIONAL VARIABLE: MassTransfer
        Option = Fluid Dependent
      END
      FLUID: Fluid 1
        ADDITIONAL VARIABLE: MassTransfer
          Additional Variable Value = Fluid 1 | Fluid 2.Interphase Mass Transfer Rate
          Option = Algebraic Equation
        END
      END
    END
  END
END

I always get the Error Message, that I must have two Fluid Definitions. Which I have indeed! ("Error: At least one sub-object of type 'FLUID DEFINITION' is required in /FLOW: ...")

Is anybody expierienced in Using IPMT-Rate and can give hints? Ive searched the wiki and this forum but without any hit.

Thanks
Simon

ghorrocks November 23, 2010 06:12

But you have not defined fluid 2.

Start with the cavitation example in the tutorials and modify it to your case.

camoesas November 23, 2010 07:36

1 Attachment(s)
Yes I have defined Fluid 2!

But nevertheless I will review the tutorial


All times are GMT -4. The time now is 03:27.