Seepage flows and groundwater flows in soils; sediment transport and obstacles in running waters Features - seepage flows and groundwater flows in soils - supply and drain (groundwater and running waters) over a large area and at individual points - sediment transport and obstacles in running waters Learning objectives/experiments - investigating transient processes -- effect of rainfall of varying duration on the discharge -- storage capacity of a soil - investigating steady processes -- seepage flow -- effects of wells on the groundwater level over time - flow behaviour of rivers, obstacles in the river bed, sediment transport in rivers Specification [1] investigation of precipitation-discharge relationships, storage capacity of soils, seepage flows, groundwater flows and sediment transport [2] closed water circuit [3] inclinable stainless steel experiment tank contains 19 measuring connections to detect groundwater levels, transparent splash guard and screens for separating the chambers [4] 2 wells with open seam tubes in the experiment tank [5] adjustable precipitation device [6] precipitation time can be adjusted via timer [7] water supplies and drains can be selected individually [8] transparent measuring tank (flow) and force sensor (determining the amount of sediment) [9] 3 models for pillars: round, square, oval [10] instruments: tube manometers (groundwater), flow meter (2x at the supply) and measuring weir in the measuring tank (1x at the drain) [11] software for data acquisition via USB under Windows 10 Technical data Experiment tank, inclination adjustment: -1...5% - area: 2mx1m, depth: 0,2m, max. sand filling: 0,3m3 Precipitation device - 8 nozzles, switchable in 4 groups of 2 nozzles - flow rate: 1...4,7L/min, square spray pattern Pump - power consumption: 0,55kW - max. flow rate: 1500L/h Storage tank, stainless steel: 220L Measuring ranges - pressure: 19x 0...300mmWC - flow rate: -- 0...1050L/h, 0...320L/h (water supply) -- 0...1000L/h (water drain) - sediment mass: 0...5000g 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase UL/CSA optional LxWxH: 2300x1100x1950mm Empty weight: approx. 350kg
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