When using proⅡ to calculate the pressure drop in pipelines, where should the material viscosity data be entered?
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When using proⅡ to calculate the pipe pressure drop, where do I enter the material viscosity data?
Don’t viscosity data need to be entered when defining the system’s substances? It is temperature-dependent; the viscosity of a pure substance is already known, while for mixtures, it is calculated according to the rules of mixing.