parts of hydraulic bench

Hydraulic bench:

Hydraulic bench is a very useful apparatus in hydraulics and fluid mechanics. It is involved in majority of experiments to be conducted e.g. To find the value of the co-efficient of velocity ‘Cv’, coefficient of discharge ‘Cd’, to study the characteristics of flow over notches, to find metacentric height, to find head losses through pipes, to verify Bernoulli’s theorem etc.

Parts of Hydraulic Bench Machine:

Its parts are given below:

Centrifugal pump:

It draws water from sump tank and supplies it for performing experiments.

Sump Tank:

It stores water for Hydraulic bench. It is located in the bottom portion of Hydraulic bench. Water from here is transported to other parts by using a pump. It has a capacity of 160 liters.

Vertical pipe:

It supplies water to the upper part of hydraulic bench from sump tank through a pump.

Control valve:

It is used to regulate the flow in the pipe i.e. to increase or decrease the inflow of water in the hydraulic bench.

Connector:

With the help of this we can attach accessories with the hydraulic bench. Special purpose terminations may be connected to the pump supply by unscrewing connector, no hand tools are required for doing so. It is located in the channel.

Channel:

It is used in number of experiments It provides passage for water for different experiments.

Drain valve:

It is used for emptying sump tank.

Side channels:

They are the upper sides of the channel. They are used to attach accessories on test.

Volumetric tank:

It stores water coming from channel. This tank is stepped to accommodate low or high flow rates. It has a capacity of 46 liters.

Stilling baffle:

It decreases the turbulence of water coming from channel. It is located in the volumetric tank.

Scale & Tapping:

A sight tube and scale is connected to a tapping in the base of the volumetric tank and gives an instantaneous indication of water level.

Dump valve:

It is at the base of the volumetric tank. Opening the dump valve allows the entrained water to return to the sump tank for recycling. It is used for emptying volumetric tank. It is located in the bottom of the volumetric tank.

Actuator:

Dump valve is operated by a remote actuator, lifting actuator opens the dump valve, when it is given a turn of 90’ it will turn the dump valve in the open position.

Over flow:

It is an opening in the upper portion of the volumetric tank. It sends the water level above 46 lits to the sump tank.
Measuring cylinder

A measuring cylinder is provided for measuring of very small flow rate. The cylinder is stored in the compartment housing the pump.

Starter:

It on / off the hydraulic bench.

Fluid Mechanics

                                                       Fluid Mechanics

                INTRODUCTION TO FLUID MECHANICS

Mechanics: 

     It  is the oldest physical science that deals with both stationary and moving bodies under the influence of forces. A substance in the liquid or gas phase is referred to as a fluid. A fluid deforms continuously under the influence of shear stress, no matter how small.

Fluid Mechanics:

Fluid mechanics is defined as the science that deals with the behavior of fluids at rest or in motion. 

Branches of fluid mechanics:

There are three branches of fluid mechanics as follows:

1) Fluid statics

2) Fluid kinematics

3) Fluid dynamics

1) Fluid statics:

The study of fluids at rest. The study of fluids which are completely at rest.

2) Fluid kinematics:

The study of fluids in motion, where pressure forces are not considered.

3) Fluid dynamics:

If the pressure forces are also considered for the fluids in motion,that branch is called fluid dynamics.

                 Some Applications Of Fluid Mechanics:

1. sea / river (flood) defences
2. water distribution
3. Hydraulic design of water
4. Dams
5. Irrigation
6. Pumps and turbines
7. water retaining structures

  

Engineering Mechanics

                                               Engineering Mechanics

       Engineering mechanics is the study of forces that act on bodies and the resultant motion that those bodies experience. Engineering mechanics subject involves the application of the principles of mechanics to solve real-time engineering problems.

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Types:

  There are two types of engineering mechanics

1) statics

2) Dynamics

1. statics:

Statics is the branch of mechanics that deals with the study of objects at rest. Objects at rest may or may not be under the influence of forces.

2. Dynamics:

Dynamics is the branch of mechanics that deals with the study of objects in motion and the forces causing such motion.

Dynamics Types:

Dynamics can be further classified into two types. They are:

1. Kinematics
2. Kinetics

2.1 Kinematics:

Kinematics is the study of the motion of bodies without consideration of the cause of the motion. Kinematics deals with the space-time relationship of the motion of a body. Some examples of kinematic concepts are displacement, velocity and acceleration.

2.2 Kinetics:

Kinetics is the branch of mechanics which deals with the study of the motion of bodies by considering the cause of motion.