![]() In air conditioners, the refrigerant absorbs room heat and throws it in to the atmosphere, thereby keeping the room cool. The refrigerant absorbs the heat from whatever is being kept in the chiller or evaporator, which is at a low temperature, and delivers that heat to the atmosphere, which is at a high temperature. In refrigerators and air-conditioners, the fluids are known as refrigerants. This is another important area where fluids play a crucial role. In larger automobiles like cars, busses and trucks, water is used for cooling the engine. Oil is used for the lubrication of the engine and the gearbox and also various other moving parts of the vehicle. Petrol or diesel generates power on combustion in the engine. Fluids perform three crucial operations in automobiles: generation of power, lubrication, and cooling of the engine. This high energy fluid enters the piston and cylinder arrangement where it can be used to lift heavy loads or apply large forces. The oil is passed through the hydraulic motor which transfers large amounts of energy to the fluid. In most of these machines, oil is used as the fluid. Some hydraulic machines are used to perform various machining operations. The fluid as the capacity to lift heavy loads and exert extremely high pressures. Machines that operate on a fluid like water and oil are called hydraulic machines. ![]() In some countries power requirements are fulfilled entirely by these plants. Hydroelectric power plants are one of the major suppliers of power throughout the world. Water stored in the dam possesses potential energy, which is converted into the electrical energy in the power generation unit of the plant. In hydroelectric power plants, water is used to generate electricity on a large-scale basis. ![]() It is in these branches of engineering where there is maximum use of the fluids. This field is studied in detail within Civil Engineering and also to great extent in Mechanical Engineering and Chemical Engineering. 4) Fluids like water posses kinetic and potential energy, which is used for generation of electricity as in hydroelectric power plants.įluid mechanics helps us understand the behavior of fluid under various forces and at different atmospheric conditions, and to select the proper fluid for various applications. ![]() 3) Some fluids have excellent flow properties which can be used for the lubrication of various machines. The fluids used in hydraulic machines and hydraulic lifters are an example. These fluids can be used for lifting various heavy loads. 2) There are some fluids like oil that have a tendency to exert very high pressure or force. Examples of these fluids includes petrol and diesel for vehicles. Some of these include: 1) There are number of fluids that when burnt, produce lots of heat, which can be used for various applications. Engineering allows us to explore the potential of fluids for a number of new applications and various functions. What is the necessity of stuying fluids as an aspect of engineering? Fluids are already an integral part of our day-to-day life. The study of moving fluid without considering the effect of external pressures is called as fluid kinematics.įluid dynamics: The branch of science which studies the effect of all pressures including the external pressures on the moving fluid is called as fluid dynamics. Fluid statics: The fluid which is in state of rest is called as static fluid and its study is called as fluid statics.įluid kinematics: The fluid which is in state of motion is called as moving fluid.Fluid mechanics deals with three aspects of the fluid: static, kinematics, and dynamics aspects: Whether the fluid is at rest or motion, it is subjected to different forces and different climatic conditions and it behaves in these conditions as per its physical properties. For instance water is used for generation of electricity in hydroelectric power plants and thermal power plants, water is also used as the coolant in nuclear power plants, oil is used for the lubrication of automobiles etc.įluid Mechanics is the branch of science that studies the behavior of fluids when they are in state of motion or rest. Water, oil, and others are very important in our day-to-day life as they are used for various applications. All liquid and gaseous substances are considered to be fluids. Its various branches are fluid statics, fluid kinematics and fluid dynamics.Ī substances that flows is called as fluid. Fluid mechanics, the branch of science that deals with the study of fluids (liquids and gases) in a state of rest or motion is an important subject of Civil, Mechanical and Chemical Engineering.
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