Development of machines for hydraulic transportation of snow

Part 3: Ditch end snow mixing machine

Abstract

In order to develop a combined system of open channels and pipes for transportation of snow, the optimum shape, dimension and operating condition of blades, which are to be installed at the end of an open channel to crush the snow lumps to mix with water, have been experimentally investigated. A modified grass cutter type of blades has been developed and its performance expressed in terms of the flow ratio of snow to water as R^s = 1.74×10^-4·N/ F^r for F^r of 0.2 to 0.4. Where N is the number of revolution per minute of the blades, and Fr the Froude number of the open channel. Use of this equation is shown to give the actual dimension and the number of revolution for a snow dumping open channel under practical use.