Transport Properties¶
Transport¶

class
Transport
(r, th, model, loglevel)¶ Transport class constructor.
Create a new instance of class
Transport()
. One, three, or four arguments may be supplied. If one argument is given, it must be an instance of classTransport()
, and a copy will be returned. If three or four arguments are given, the first two must be an instance of classXML_Node()
and an instance of classThermoPhase()
respectively. The third argument is the type of modeling desired, specified by the string'default'
,'Mix'
or'Multi'
.'default'
uses the default transport specified in theXML_Node()
. The fourth argument is the logging level desired.Parameters:  r – Either an instance of class
Transport()
or an instance of classXML_Node()
 th – Instance of class
ThermoPhase()
 model – String indicating the transport model to use. Possible values
are
'default'
,'Mix'
, and'Multi'
 loglevel – Level of diagnostic logging. Default if not specified is 4.
Returns: Instance of class
Transport()

binDiffCoeffs
(a)¶ Get the binary diffusion coefficents.
Parameters: a – Instance of class Transport()
(or another object derived from Transport) for which binary diffusion coefficients are desired.Returns: A matrix of binary diffusion coefficients. The matrix is symmetric: d(i,j) = d(j,i). Units: m**2/s

electricalConductivity
(a)¶ Get the electrical conductivity.
Parameters: a – Instance of class Transport()
(or another object derived from Transport) for which the electrical conductivity is desired.Returns: Electrical conductivity in S/m

mixDiffCoeffs
(a)¶ Get the mixtureaveraged diffusion coefficients.
Object
a
must belong to a class derived from Transport, and that was constructed by specifying the'Mix'
option. If'Mix'
was not specified, you will get the error message**** Method getMixDiffCoeffs not implemented. ****
In this case, try method
multiDiffCoeffs()
, or create a new gas mixture model that uses a mixtureaveraged transport manager, for example:>> gas = GRI30('Mix');
See also:
MultiDiffCoeffs()
Parameters: a – Instance of class Transport()
(or another object derived from Transport) for which mixtureaveraged diffusion coefficients are desired.Returns: Vector of length nSpecies with the mixtureaveraged diffusion coefficients. Units: m**2/s

multiDiffCoeffs
(a)¶ Get the multicomponent diffusion coefficients.
Object
a
must belong to a class derived from Transport, and that was constructed by specifying the'Multi'
option. If'Multi'
was not specified, you will get the error message**** Method getMultiDiffCoeffs not implemented. ****
In this case, try method
mixDiffCoeffs()
, or create a new gas mixture model that uses a mixtureaveraged transport manager, for example:>> gas = GRI30('Multi');
Parameters: a – Instance of class Transport()
(or another object derived from Transport) for which multicomponent diffusion coefficients are desired.Returns: Vector of length nSpecies with the multicomponent diffusion coefficients. Units: m**2/s

setParameters
(tr, type, k, p)¶ Set the parameters.
Set parameters of the
Transport()
instance. Not defined for all transport types.Parameters:  tr – Instance of class
Transport()
(or another object derived from Transport)  type –
 k –
 p –
 tr – Instance of class

setThermalConductivity
(tr, lam)¶ Set the thermal conductivity.
This method can only be used with transport models that support directly setting the value of the thermal conductivity.
Parameters:  tr – Instance of class
Transport()
(or another object derived from Transport)  lam – Thermal conductivity in W/(mK)
 tr – Instance of class

thermalConductivity
(a)¶ Get the thermal conductivity.
Parameters: a – Instance of class Transport()
(or another object derived from Transport) for which the thermal conductivity is desired.Returns: Thermal conductivity. Units: W/mK

thermalDiffCoeffs
(a)¶ Get the thermal diffusion coefficients.
Object
a
must belong to a class derived from Transport, and that was constructed by specifying the'Multi'
option. If'Multi'
was not specified, the returned values will all be zero.Parameters: a – Instance of class Transport()
(or another object derived from Transport) for which the thermal diffusion coefficients are desired.Returns: Vector of thermal diffusion coefficients of length nSpecies

viscosity
(a)¶ Get the dynamic viscosity.
Parameters: a – Instance of class Transport()
(or another object derived from Transport) for which the viscosity is desired.Returns: Dynamic viscosity. Units: Pa*s
 r – Either an instance of class