hydraulic lab testing

Bernoulli's Theorem Apparatus

The equipment is designed and fabricated to demonstrate the Bernoulli's theorem. It consists of a test section made of acrylic. It has convergent and divergent sections. Pressure tappings are provided at different locations in convergent and divergent section. Present set-up is self contained water re-circulating unit, provided with a sump tank, centrifugal pump etc. An arrangement is done to conduct the experiment on different flow rates. Flow rate of water is measured with the help of measuring tank and stopwatch.

Discharge Over Notches Apparatus

The lab setup consists of a channel having sufficient length and width in which water is supplied from the bottom. Required Notch is fitted at one end of this channel. A hook gauge with Vernier Scale is fitted to measure the height of fluid in flow channel. Arrangement for fixing interchangeable notches is made set of three brass notches, i.e. rectangular notch, 60° V notch & 45° V notch is provided along with the set-up. Present set-up is self-contained water re-circulating unit, provided with a sump tank and a centrifugal pump etc. Flow control valve and by-pass valve are fitted in water line to conduct the experiment on different flow rates. Flow rate of water is measured with the help of measuring tank and stopwatch.

Impact of Jet on Vanes Apparatus

The setup consists of a two sided clear fabricated section Water is fed through a nozzle and discharged vertically to strike a target carried on a stem which extends through the cover. A weight carrier is mounted on the upper end of the stem. The dead weight of the moving parts is counter balanced by a compression spring. The vertical force exerted on the target plate is measured by adding the weights supplied to the weight pan until the mark on the weight pan corresponds with the level gauge. A total of two targets are provided, a flat plate and a hemispherical cup.

Metacentric Height Apparatus

A pontoon is allowed to float in a small tank having a transparent side. Removable steel strip is placed in the model for the purpose of changing the weight of the model. Displacement of weight is measured with the help of a scale. By means of a pendulum (consisting of a weight suspended to a long pointer) the angle of tilt can be measured on a graduated arc. For tilting the ship model, a cross bar with two movable hangers is fixed on the model. Pendulum and graduated arc are suitably fixed at the center of the cross bar. A set of weights is supplied with the apparatus.

Reynold's Apparatus

The apparatus consists of a glass tube with one end having bell mouth entrance connected to a constant head water tank and at the other end a valve is provided to vary the flow rate. The tank is of sufficient capacity to store water for conducting the test. A capillary tube is introduced centrally in the bell mouth for feeding dye from a small container placed at the top of tank, through polythene tubing. By varying the rate of flow, the Reynold's number is changes. This also changes the type of flow. Visual observation of dye(Thread) will indicate the type of flow, which can be confirmed from the Reynold's number computed. Present setup is self contained water re-circulating unit, provided with a sump tank and a centrifugal pump etc. Flow control valve and by pass valve are fitted in water line. Flow rate of water is measured with the help of measuring cylinder and stop watch.

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