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GATE Exam » GATE Study Materials » Civil Engineering » Fluid Mechanics
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Fluid Mechanics

The following paper contains an overview of fluid mechanics and its application. The paper also provides information on the different properties of fluids.

Table of Content
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Introduction

In our day-to-day life, we use fluids frequently. Be it water or anyone other material present in a liquid state. Even the biology of a human being contains the majority of fluids which include blood and water. Fluid also holds an important position in the field of chemistry and physics. Fluids are used to make a lot of things that help mankind in performing various activities. Fluids also play a very important role in terms of agriculture. As agriculture includes both water and air, fluids and their properties tend to have a strong impact on agriculture as well. Students who want to pursue the field of agriculture or agriculture mechanics must have a clear idea and understanding about fluids and their applications and their properties as well. Following is the definition and application of fluid in real life.

Definition of fluids and ideal fluid

Fluids include both gas and liquid. The study that includes observing and learning about the behavior of liquid and gas, is known as fluid mechanics. The study of fluid mechanics also gives information regarding the forces produced by the fluids. Fluids have a variety of applications in real life. Fluids that lack compressibility and viscosity, are known as ideal fluids. Some ideal and real fluids examples are water, air, honey, etc.

Application of fluids in real life

Implementation of fluids and their properties help meteorologists estimate the movement of the fluid present in the atmosphere which swirls around all the planets that are present in the galaxy. Determining the motion of fluid in the atmosphere of the earth helps in predicting the future of the weather. Apart from meteorologists, physicists try to understand the nature of the fluid to observe the flow of gases that are of very high-temperature pass through fields of the magnet. They do so to search and discover an acceptable and proper way to manipulate and control the energy that is radiated out of nuclear fusion reactions. Fluids also play a crucial role in engineering because studying fluids and understanding their flow and force enables an engineer to construct something practical and something that can be used daily. Jet propulsion, hydraulic brakes, aerofoil design, and wind turbines are made by engineers after studying the nature and flow of fluids. However, these applications are very popular and they are noticed by everyone. Apart from these, some inventions and discoveries do not receive attention and people fail to notice them. The design of mechanical heart waves is also made by studying the properties of fluid and flow of fluid but very few people tend to acknowledge this discovery. 

Principles of fluid mechanics

The principles that are involved in fluid mechanics are the energy equation, the continuity equation, and the momentum principle. These three form the mechanics of fluid. However, there is another principle that is somewhat related to the principle of fluid. It is called the Bernoulli equation. All these factors together help in forming the mechanics of fluid.

Conclusion

Fluid is an important part of all the branches of science. Chemistry, biology, and physics all the aspects include some part of the fluid. A student who aspires to become anything that includes science must have a proper understanding of the concept of fluids. Fluids and their uses are not only limited to science, they are also used in geography. Meteorologists, physicists, engineers, etc use the concept of fluid to find answers. Anything that involves liquid and gas, involves some part of the concept of fluids. Fluids and the properties of fluids play an important part in our day-to-day life. The concept of fluid mechanics involves certain principles. There are four principles or equations that together form the concept of fluid mechanics. The energy equation, the continuity equation, the Bernoulli equation, and the principle of momentum together tend to form the basic concept of fluid mechanics and its properties. Ideal and real fluid formulas are also available that help in calculating. Therefore, to have a detailed understanding of the mechanics of fluid, one must understand the equations that are involved in the mechanics of fluid. Competitive examinations take place where students are asked to answer questions regarding the principles of fluids. Therefore, a student must prepare accordingly. 

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Get answers to the most common queries related to the GATE Examination Preparation.

What are the principles of fluid mechanics?

Ans: Fluids play an important part in our daily life. It also plays a crucial role in the different...Read full

What are the applications of fluid in real life?

Ans: The use of fluids and their properties assists meteorologists in estimating the flow of the fl...Read full

Ans: Fluids play an important part in our daily life. It also plays a crucial role in the different branches of science. Biology, physics, and, chemistry, of them have fluids, and therefore a detailed understanding of fluid and its mechanics are considered to be important. The concept of fluid mechanics involves certain principles. These principles together help in forming the overall concept of fluid mechanics. The continuity equation, the energy equation, the Bernoulli equation, and the momentum principle together forms the overall concept of fluid and its mechanics. 

Ans: The use of fluids and their properties assists meteorologists in estimating the flow of the fluid present in the atmosphere, which swirls around all of the galaxy’s planets. Determining the circulation of fluid in the earth’s atmosphere aids in forecasting future weather. Apart from meteorological use, physicists strive to understand the nature of fluids by observing the passage of extremely hot gases across magnetic fields. They do so to find an appropriate and proper method of manipulating and controlling the energy emitted by nuclear fusion reactions. Fluids are also important in engineering since studying fluids and understanding their flow and force allows an engineer to build something useful and practical daily. Engineers research the physics and flow of fluids to create jet propulsion, hydraulic brakes, aerofoil design, and wind turbines. These works, on the other hand, are quite popular and are observed by everyone. Aside from these, some inventions and discoveries go unnoticed because no one notices them. Mechanical heart waves are also created by analyzing the characteristics and flow of fluid, however, few people are aware of this discovery. 

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