Public Member Functions | List of all members
Laakkonen Class Reference

Model of Laakkonen et al. (2007). The total breakup rate is calculated by. More...

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Public Member Functions

 TypeName ("Laakkonen")
 Runtime type information. More...
 
 Laakkonen (const populationBalanceModel &popBal, const dictionary &dict)
 
virtual ~Laakkonen ()
 Destructor. More...
 
virtual void setBreakupRate (volScalarField &breakupRate, const label i)
 Set total breakupRate. More...
 
- Public Member Functions inherited from breakupModel
 TypeName ("breakupModel")
 Runtime type information. More...
 
 declareRunTimeSelectionTable (autoPtr, breakupModel, dictionary,(const populationBalanceModel &popBal, const dictionary &dict),(popBal, dict))
 
 breakupModel (const populationBalanceModel &popBal, const dictionary &dict)
 
autoPtr< breakupModel > clone () const
 
virtual ~breakupModel ()
 Destructor. More...
 
const populationBalanceModel & popBal () const
 Return reference to the populationBalanceModel. More...
 
const autoPtr< daughterSizeDistributionModel > & dsdPtr () const
 Return const-reference to daughter size distribution pointer. More...
 
autoPtr< daughterSizeDistributionModel > & dsdPtr ()
 Return reference to daughter size distribution pointer. More...
 
virtual void precompute ()
 Precompute diameter independent expressions. More...
 

Additional Inherited Members

- Static Public Member Functions inherited from breakupModel
static autoPtr< breakupModel > New (const word &type, const populationBalanceModel &popBal, const dictionary &dict)
 
- Protected Attributes inherited from breakupModel
const populationBalanceModel & popBal_
 Reference to the populationBalanceModel. More...
 
dictionary dict_
 Dictionary. More...
 
autoPtr< daughterSizeDistributionModel > dsd_
 Daughter size distribution model. More...
 

Detailed Description

Model of Laakkonen et al. (2007). The total breakup rate is calculated by.

\[ C_1 \epsilon_c^{1/3} \mathrm{erfc} \left( \sqrt { C_2 \frac{\sigma}{\rho_c \epsilon_c^{2/3} (6v_i/\pi)^{5/9}} + C_3 \frac{\mu_c}{\sqrt{\rho_c \rho_d} \epsilon_c^{1/3} (6v_i/\pi)^{4/9}} } \right) \]

where

$ \sigma $ = Surface tension [N/m]
$ v_i $ = Volume of mother bubble i [m3]
$ \epsilon_c $ = Turbulent dissipation rate of continuous phase [m^2/s^3]
$ \mu_c $ = Molecular dynamic viscosity of liquid phase [Pa s]
$ \rho_c $ = Density of continuous phase [kg/m^3]
$ \rho_d $ = Density of disperse phase [kg/m^3]

References: 

        Laakkonen, M., Moilanen, P., Alopaeus, V., & Aittamaa, J. (2007).
        Modelling local bubble size distributions in agitated vessels.
        Chemical Engineering Science, 62, 721–740.
Usage
Property Description Required Default value
C1 coefficient C1 no 2.25
C2 coefficient C2 no 0.04
C3 coefficient C3 no 0.01
daughterSizeDistributionModel inh. from breakupModel inherited
Source files

Definition at line 141 of file Laakkonen.H.

Constructor & Destructor Documentation

◆ Laakkonen()

Laakkonen ( const populationBalanceModel &  popBal,
const dictionary &  dict 
)

Definition at line 51 of file Laakkonen.C.

◆ ~Laakkonen()

virtual ~Laakkonen ( )
inlinevirtual

Destructor.

Definition at line 172 of file Laakkonen.H.

Member Function Documentation

◆ TypeName()

TypeName ( "Laakkonen"  )

Runtime type information.

◆ setBreakupRate()

void setBreakupRate ( volScalarField &  breakupRate,
const label  i 
)
virtual

Set total breakupRate.

Implements breakupModel.

Definition at line 77 of file Laakkonen.C.

References Foam::cbrt(), sizeGroup::dSph(), Foam::erfc(), fluidThermo::mu(), sizeGroup::phase(), Foam::pow(), phaseModel::rho(), Foam::sqrt(), and phaseModel::thermo().

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The documentation for this class was generated from the following files: