Ranges and New Products for 2021

Advanced Hydrology and Ra i nfa l l App H3 1 3V

• VDAS ® Onboard • Two extra switchable rain banks • Improved flow measurement

A self-contained, floor-standing unit consisting of a water reservoir and a tank for sand with overhead spray nozzles that simulate rainfall, both stationary and moving. It is for studying hydrology principles including rainfall, throughflow and the movement of water over land and rivers. • VDAS ® Onboard for data acquisition and results analysis including the plotting of hydrographs • Two extra switchable rain banks for the simulation of multiple storms, equalling four in total • Improved flow measurement in the form of magnetic inductive flow meters • Permeable catchment area fed with ‘rain’ from overhead spray nozzles and/or by groundwater flow from ends of tank • Spray nozzles to supply half or all of catchment area • Can measure ‘drawdown’ due to single or two interacting wells • Self-contained, requires only an electrical supply • Sediment capture device with sensor reads the sediment loads

L earn i ng Outcomes : • Investigation of rainfall/run-off relationships for dry, saturated and impermeable catchments of various slopes (surface run-off only) • Effect of interflow on outflow hydrograph surface run-off (plus groundwater flow) • Simulation of multiple and moving storms • Measurement of cone of depression for a single well, and comparison with theory interaction of cones of depression for two adjacent wells • De-watering of excavation sites by use of wells • Flow from a well in a confined aquifer • Demonstration of watersheds for a simulated island with rainfall and well flows • Sediment transport and meanders in simulated rivers • Studies of scour around simulated bridge piers

Art i f i c i a l R i v er Bed


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