Sci-tech Ground Water Flow Unit Model 70 for Education

Sci-tech Ground Water Flow Unit Model 70 consists of Sand Tank manufactured from Fibre

Reinforced Plastic for durable life & corrosion free operation. The tank is mounted on a free-standing steel frame. The tank is to be filled with layer of fine sand. The tank has inlet & outlet connections at each end. Each connection has a flow control valve to maintain desired water level in the tank. The bed has 19 pressure tapings at the base that are connected to 19 tube manometer panel at the front to indicate profile of water table in the sand. For studies of abstraction, two wells are provided at the base of the tank. Water can be supplied to the unit from Hydraulic Bench or Tap Connection inside the laboratory.

Specifications

1)    Anodized aluminium frame and panels made of painted steel.

2)    The unit includes wheels to facilitate its mobility.

3)    Main metallic elements made of stainless steel.

4)    Diagram in the front panel with distribution of the elements similar to the real one.

5)    Test tank, made in FRP or optional SS304, 990 mm of length x 490 mm of width and 235 mm of depth.

6)    Two membrane valves to regulate water inlet flows to the test tank.

7)    Two wells symmetrically located in the test tank.

8)    Two membrane valves to regulate water outlet flows from the wells.

9)    Nineteen tapings to measure the hydraulic gradients, connected to column water manometers of 200 mm. long.

10)Air manual pump connected to the manometers.

11)Three accessories that make it easy the construction of the different model objects of study:

1.-Rectangular model for a lake construction.

2.-Rectangular model for an excavation construction.

3.-Cylindrical model for a confined aquifer construction.

12)Flexible pu pipes and quick connectors.

13)Manuals: This unit is supplied with the following manuals: Required Services, Assembly and Installation, Starting-up, Safety, Maintenance & Practices Manuals.

Technical Specifications

FRP or optional SS304 Tank of Size:

- Length: 990mm

- Width: 490mm

- Depth: 235mm

19 Tube Manometer: Range: 0 to 200mm, Calibrated 1mm intervals

Overall Dimensions

- Length: 1115mm

- Width: 585mm

- Height: 530mm

19 Tube Manometer

Optional Level Sensors & other sensors for Sci-Cal or Sci-CalVaq interfaces.

Ordering Specifications

• A bench-standing sand tank capable of demonstrating, on a small scale, the hydrological
• principles of ground water flow.
• The unit allows simple three-dimensional flow situations to be set up quickly and

measurements of piezometric levels taken at appropriate positions within the model under study.

• The accompanying instruction manual describes six basic demonstrations of importance in Engineering Hydrology.

Experiment Capabilities

1. Demonstration of hydraulic gradients in ground water flow, including the effect of permeability.

2. Investigation of hydraulic gradients for different models built on the test tank.

3. Determination of the ground water level between inlet and outlet.

4. Demonstration of the Darcy’s Law.

5. Study of the cone of depression for a well in a confined aquifer.

6. Study of the cone of depression for a well in a free aquifer.

7. Study of the cone of depression cone for two wells.

8. Experiment to obtain hydraulic gradients for a model with two wells. Compare it with the result of only one well by the superposition method.

9. Draining of or lake model.

10. De-watering of an excavation model under freatic level.

11. De-watering of an excavation model using two wells.

12. Interaction of cones of depression by two adjoining wells.

13. Draw-down curves for one well and two wells systems.

14. Comparison of different profiles, combinations.

15. How to fill the manometer tubes.