- gas_mixture_whz(phase, T='pore.temperature', ks='pore.thermal_conductivity.*', MWs='param.molecular_weight.*')#
Calculates the viscosity of a gas mixture using the correlation in 
phase (OpenPNM Phase object) – The phase object to which this model is associated (i.e. attached). This controls the length of the calculated array(s), and also provides access to other necessary properties.
T (str (dict key) or numeric) – Name of the dictionary key on
phasecontaining the ndarray of temperature values, in units of [K]. If a numerical value is passed (i.e. a scalar or ndarray) it gets used directly.
ks (str (dict key) or numeric) –
MWs (str (dict key) or dict of numeric values for each species) –
 Wassiljew, Herning & Zipperer