Liquid & Gas Properties Module Updates

New Method for Computing Viscosity: The Davidson Viscosity Model

For users of the Liquid & Gas Properties Module, COMSOL Multiphysics® version 6.0 brings a new Davidson model for computing viscosity in multicomponent mixtures based on the different components' contributions to the momentum of a gas in the system. The only data required for computing viscosity in the Davidson model are the molecular weights and the viscosities of the pure components at the given temperature and pressure. The Davidson model is computationally efficient and is as accurate as the best available models for estimating the viscosity of binary gas mixtures.

A monolithic reactor model showing the temperature conversion in the Rainbow color table. Isosurfaces showing the conversion of NO in a monolithic reactor.