This is a self-contained bench top open channel for studying bed forms with change in flow and slope as well as flow phenomena without sediment.

The channel is of a rectangular cross-section supported by steel frame. The channel sides are made of clear acrylic with tilting controlled by a manual screw jack. A stainless-steel head tank with a stilling baffle provides a smooth flow.

The water is discharged from the channel via a built-in rectangular weir to the storage tank. A fine strainer is provided in the storage tank to trap the sand sediment.

Instruction manual is also included.

The equipment is a self-contained unit designed to study the mobile bed formation and two-dimensional flow observation.

The unit consists of;

      .    Head tank with perforated plate to minimize turbulence and smoothen the flow.

      .    The working section containing sand is for study of the mobile bed formation and to observe two dimensional flow patterns. Wire mesh is provided to contain the sand. Plastics plates are used when two-dimensional flow is to be observed.

      .    The storage tank collects discharge from the working section and acts as a reservoir. An adjustable overshot weir is provided to control the water level in the working section.  The tank also has a sand trap to collect the over-spilled sand.

      .    A pump to draw water from the storage tank and deliver it to the head tank. A water meter with a flow control valve are also supplied.

      .    An instrument carriage traveling on stainless steel tube rails attached to the edges of the working section is designed such that the carriage can travel length wise and crosswise over the working section. A stainless steel vernier hook and point gauge is attached to the carriage to measure the sand profile level.

      Various accessories are supplied to simulate different flow obstructions and diversions. An aluminium dust or equal is supplied for two-dimensional flow observations.

Instruction manual is also included.