Multisalt-Version of viscosity calculation according to Zhang et al 1997: Considers NaCl and CaCl, with geometric mixture rule
function dynamicViscosity_Zhang1997_pTXd input SI.Pressure p_Pa; input SI.Temp_K T_K; input SI.MassFraction X[:] "mass fraction m_NaCl/m_Sol"; input SI.Density d; input SI.MolarMass MM[:]; output SI.DynamicViscosity eta; end dynamicViscosity_Zhang1997_pTXd;