Aerodynamics

Aerodynamics

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  PREPARED BY :PIYUSHDIXIT ENROLL:120750107020 5TH COMPUTER SHANKERSINH VAGHELA BAPU INSTITUTE OF TECHNOLOGY AERODYNAMICS
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  1 What doesaerodynamic means? Aerodynamics is the study of moving gases (in this case air) over a body in motion, and how that airflow will affect the body's movement through the flow. car aerodynamics make the car more safer and make it more fuel efficient. It is used in most of the cars today specially in race cars because there is more need of aerodynamics in high speeds cars.
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  2 Aerodynamics- its origin….. •In the early 1920s engineers began to consider automobile shape in reducing aerodynamic drag at higher speeds. • By the 1950s German and British automotive engineers systematically analyze the effects of automotive drag for higher performance vehicles. • By the late 1960s scientists showed awareness in the significant increase in sound levels emitted by automobiles at high speed. • Soon highway engineers began to design roadways to consider the speed effects of aerodynamic drag produced sound levels.
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  3 Main :  Indesigning of Aircrafts.  In the study of Aerospace Industry. Other :  In the construction of Buildings and Skyscrapers.  In designing of Automobiles.  In the designs of Turbines.  In the Wind Mill.  In Sports.  And in almost everything …. Application of Aerodynamics:
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   Any movingobject needs to balance four essential forces .  These forces are introduced whenever an object flies in the air or runs on the surface of earth.  These forces of aerodynamics are : Thrust Lift Weight Drag 4 Forces acting on a Body in motion
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   The Designingis a complex process but all the parts and the framing of the body of the aircraft depends on aerodynamics.  Under this ,it includes the basic phenomenon of designing using the testing methods .  These testing methods are:  Wind tunnel testing [ initial test ].  Simulation[ initial test ].  Real Demonstrations[ final test ]. 5 Designing In Aerodynamics
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   As perthe pictures depicting it is a method of testing the design of the a body by using high speed air flow.  In Aerospace it is an essential criteria which an aircraft has to pass for its approval by the National Aviation Authority ( NAA ).  In the automobile industry the standards are the same which are governed by the Industries which are creating it. 6 Wind tunnel testing
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   Simulation isthe process of analyzing and viewing the object in a 3-dimension projection.  In large Industries this is done under a team of experts to continuously improve the product and for creating new innovations.  This technique is much less costlier then wind tunnel testing or testing by the means of real demonstrations which sometimes result large loss of properties. 7 Simulation :
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  8 OBJECTIVE OF AERODYNAMICSIN CARS  Influencing the way a car cuts through air.  Reducing the drag.  Reducing wind noise.  Prevent Undesired lift forces at high speeds.  Produces desirable downwards aerodynamics forces to improve traction.
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  9 OBJECTIVE OF AERODYNAMICSIN BUILDINGS  To withstand the natural forces of the environment that is the wind, buildings are designed in a way that it support that and this allows us to make skyscrapers.  Also they use the same techniques for testing and designing them as we are using in the other fields.
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  Thanks you! 10 PREPARED BY:PIYUSH DIXIT ENROLL:120750107020 6TH COMPUTER