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Products  |  Fluid Mechanics  |  Hydraulics for Civil Engineering  |  HM 165
HM 165 Studies in Hydrology Show data sheet (pdf file) Print page
HM 165 - A product from the GUNT 2E range
Technical Description

  In civil engineering, studies in hydrology are conducted in connection with the design, construction and operation of hydraulic engineering systems and water management functions. These studies focus on topics such as seepage and flow of water in the soil and the use of groundwater resources. 
  HM 165 can be used to study seepage and groundwater flows after precipitation. In particular, permeability and storage capacity of soils can be clearly observed. Variable precipitation density and areas and different groundwater feed and discharge possibilities allow a wide variety of experiments.
  The core element of the trainer is a sand-filled, stainless steel experiment tank with inclination adjustment. To illustrate groundwater flow, the water is supplied via two side-mounted chambers. To study precipitation, a precipitation device is available. The precipitation device consists of two groups of four nozzles. There are two wells with perforated tubes or two side-mounted chambers with drainage screens available for the investigation of various drainage systems.
  At the bottom of the experiment tank there are measuring connections to detect groundwater levels. A mirrored arrangement of the measuring connections allows for a finer resolution of the measurement.
  Groundwater levels are displayed on a 19-fold tube manometer. The water supply is controlled by a needle valve and read on a flow meter. The water drain is determined by a measuring weir.

  HM 165 contains a closed water circuit with storage tank and pump.

  The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.

 

Learning Objectives / Experiments

- investigating transient processes
  * effect of precipitation of varying duration
  * effect of different soil saturation levels
  * storage capacity of a soil
- investigating steady processes
  * investigating the seepage flow
  * studying how wells affect the groundwater level

    over time
  * groundwater flow in inclined, impermeable layer
- investigating the groundwater level of an island

Features

* Investigation of seepage flow and groundwater

  flows in soils1
* Experimental section with inclination adjustment1
* Investigation of steady and transient processes1
* Closed water circuit

Alternative products
HM 141 -- Hydrographs after Precipitation
HM 167 -- Ground Water Flow
HM 168 -- Sediment Transport in River Courses
HM 169 -- Visualisation of Seepage Flows
Overview
Seepage Flow
Specification

[1] investigation of seepage flows and groundwater levels over time
[2] closed water circuit
[3] stainless steel experiment tank with transparent splash guard
[4] experimental section separated from inlet and outlet chamber by screens
[5] precipitation device with eight nozzles, adjustable precipitation area
[6] water drain and two wells
[7] 19 measuring connections with filters at the bottom of the experiment tank
[8] stainless steel storage tank with level indicator
[9] water inlets and outlets can be adjusted separately via valves
[10] instruments: tube manometer, rotameter (inlet) and measuring weir (outlet) in the measuring tank

 

Technical Data

Experimental section
- area: 2x1m, depth: 0,2m
- max. sand filling: 0,3m
- inclination adjustment: -2,5...5%
Precipitation device
- 8 nozzles, switchable in 2 groups of 4 nozzles
- flow rate: 1...4,7L/min, square spray pattern
Pump
- power consumption: 0,55kW
- max. flow rate: 1.500L/h
Storage tank, stainless steel: content 180L
Tube manometer: 19-fold, 300mmWC

 

Measuring ranges
- flow rate (inlet): 150...1.600L/h

 

Dimensions and Weight
LxWxH: 2.400x1.100x1.800mm
Empty weight: approx. 250kg
Required for Operation
230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA, 1 phase; coarse sand, grain size 1...2,5mm
Scope of Delivery
1 trainer
1 set of instructional material
Order Details
070.16500  HM 165  Studies in Hydrology
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