On the Pressure Drop Through a Uniform Snow Layer

An experimental study covering a mass flow rate ranging from 1 .62 to 67.45 gsq cm-s and snow density varying from 0.377 to 0.472 gcu cm has been conducted. Pressure drops ranging from 0.012 to 2.868 gsq cm were recorded. A plot of the friction factor f sub p vs Re sub p defined as the classical Reynolds number Re for fluid flow through conduits showed a good representation of all the experimental data. The least-squares analysis resulted in an expression of f sub p 118Re sub p to the 1.095 power for snow, in comparison with the expression f sub p 64Re sub p developed for fluid flow through porous media of randomly packed metallic and nonmetallic materials of spherical and nonspherical shapes. Keywords Air flow Thermal conductivity Vapor diffusivity Fluid flow Friction coefficient Porous media.