Permeability, Flow Nets And Darcy's Law
Product Code : LSK-FM-10468
Permeability, Flow Nets And Darcy's Law (SKU LSK-FM-10468) is a transparent seepage tank in which students model groundwater flow through sand around sheet piling, walls and dams, trace flow lines with dye and measure the head distribution. It serves soil mechanics and hydraulics practicals in civil engineering degrees and diplomas. Science Lab Supplies manufactures the tank and its steel bench frame in Saha, Ambala, India (Plot 448, HSIIDC Industrial Area) and quotes it directly to colleges, contractors and distributors.
Specifications
The tank has plate-glass sides that resist abrasion from the permeable medium and an open top for filling and building models. Stainless-steel mesh baffles hold the sand at each end, adjustable overflow pipes set the end water levels, and filtered rear tappings feed a bank of piezometer tubes.
| Parameter | Value |
|---|---|
| SKU | LSK-FM-10468 |
| Tank | Transparent, plate-glass sides, open top, scales along the front edge |
| Mounting | Steel-framed bench with worktop |
| End sections | Removable stainless-steel mesh baffles; end compartments with adjustable overflow pipes |
| Head measurement | Rear tappings with filters, connected to a bank of piezometer tubes |
| Flow visualisation | Dye-injector system |
| Services | Mains water supply and drain |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Darcy's Law and Flow Nets Apparatus
With sand in the tank and a head difference set between the end compartments, students verify Darcy's law, find the permeability of the medium and draw flow nets beneath model structures. These fluid mechanics lab experiments support seepage topics in B.Tech/B.E. civil geotechnical and hydraulics labs and in diploma civil courses.
- Verifying Darcy's law and finding the coefficient of permeability.
- Drawing flow nets under sheet piling and simulated dams, with dye tracing flow lines.
- Measuring the head distribution along the tank with the piezometer bank.
Standard Scope of Supply
Supply covers the glass-sided tank on its steel-framed bench, the mesh end baffles, end compartments with overflow pipes, filtered tappings with piezometer tubes, the dye-injector system and clear, self-sealing plates for building sheet-pile, wall and dam models. The permeable medium, usually sand, is not listed with the apparatus.
Packing, MOQ and Lead Time
Quotations are prepared for a single tank or for as many as a department needs, each giving packing, delivery time and price for that quantity. Other engineering lab equipment in India from the fluid mechanics range can be included on the same quotation.
Registered with an Importer-Exporter Code, Science Lab Supplies can ship to buyers in Malaysia, Peru, Egypt, Iraq, Nigeria and Kenya. The business is registered under Udyam as a manufacturing enterprise (UDYAM-HR-01-0014546) and for GST (GSTIN 06ADEPJ0574F2ZU). Use the contact page or the enquiry cart for a quotation; tender details are on the lab tender page.
Frequently Asked Questions
Does the tank need a hydraulic bench?
No. The apparatus is self-contained on its own steel-framed bench and needs only a mains water supply and a drain. The overflow pipes in the end compartments set the upstream and downstream water levels.
What models can students build in the tank?
Clear, self-sealing plates are supplied for modelling sheet piling, walls and simulated dams. Scales round the front edge of the tank help position the models and measure the flow nets.
Why are the tank sides made of plate glass?
Sand and similar permeable media scratch softer transparent materials. Plate glass resists this abrasion, so the flow patterns and dye lines stay clearly visible.
Is Science Lab Supplies the manufacturer or a trader?
The company manufactures this apparatus itself, at its Saha factory in Ambala, India, and quotes to buyers without any middleman.
Related Groundwater and Open-Channel Equipment
These units continue the water-resources theme: a rainfall catchment with water-table tappings, a dye-traced flow channel, a spillway model for flow over dams and a settling-column set for sediment behaviour, all suited to the same civil engineering laboratory.
- Hydrology And Rainfall Apparatus — tilting catchment with spray nozzles, wells and piezometers.
- Flow Visualisation Channel — 15 mm acrylic channel with dye injectors and models.
- Spillway — spillway with ski jump and apron for energy dissipation studies.
- Liquid Sedimentation Apparatus — five back-lit settling columns.
Browse the full Fluid Mechanics range or all engineering laboratory equipment.
Last updated: 25 September 2026
