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Title: A research hydraulic flume for modeling drifting snow: design, construction and calibration
Authors: Calkins, Darryl J.
Keywords: Flumes
Hydraulic models
Model basins
Model tests
Sediment transport
Snow removal
Hydraulic structures
Laboratory equipment
Laboratory techniques
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Research report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 251.
Description: Technical Report
Abstract: A fluvial bed hydraulic flume was designed and constructed for the purpose of modeling drifting snow. Basic design data were taken from the literature but the design of each particular section was tailored to the needs of the user and the type of experiments being planned. Each section has bolted connections which allow flexibility if a section needs to be modified. For example, glass viewing panels are individually clamped at the top so a single sheet can be replaced with minimal difficulty. The facility took approximately one year to build from the time the working drawings were completed. An experienced welder and steel fitter were essential, as the alignment of the outside structural tees and floor plate was critical due to the requirement for the glass viewing panels to be perpendicular and in line along the flume. Lightweight spiral-weld pipe, precut and pre-galvanized, saved many hours, especially when using the Victaulic type couplings. Butterfly valves were more economical than standard gate valves, being easier to position and requiring less space. The operation of the flume facility was designed to be simple. Three butterfly valves control the operation of the storage tank system, and a variable-speed control on the pump-motor unit permits a wide range of flow velocities for any given depth. The discharge can be monitored continuously from a differential-pressure transducer which is connected to the venturi. Ease of operation cannot be overemphasized as it allows for a greater flexibility in the design of experiments in the hydraulic flume facility.
Appears in Collections:CRREL Technical Report

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