A synopsis exploring how complete autonomy can be achieved in self driving cars
A STUDY ON CONSUMER PERCEPTIONS AND BEHAVIOUR TOWARDS HYUNDAI CARSFull description
The Indian automobile industry is one of the largest industry in the world. The Government of India and the major automobile players are working together to make India a leader in the two wheeler and four wheeler market in the world by 2020. Technolo
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a ppt on consumer co opretive store
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AERODYNAMICS IN CARS
by, HABEEB MUHAMMED.A ROLL NO : 15 S8 ME
INTRODUCTION
AERODYNAMICS : Study of forces generated by motion of air on moving body.
CLASSIFACATION OF AERODYNAMICS : external and internal, subsonic , supersonic , hypersonic
FIELDS OF APPLICATION : aerospace engineering, design of automobiles , ships , civil engineering , design of bridges etc.
AERODYNAMIC FORCES ON A BODY
LIFT (DOWNFORCE)
DRAG
WEIGHT
THRUST
HISTORY OF EVOLUTION OF AERODYNAMICS IN CARS
DESIGN’S IN EARLY 20th CENTURY : cars with low speeds, no aerodynamic problems.
CAR’S IN THE EARLY 50’s : cars designed for big family’s , complete negligence of aerodynamics.
CARS AFTER 70’s : fuel crisis , need of economic designs , evolution of aerodynamics.
WHY WE NEED TO IMPROVE AERODYNAMICS IN CARS
SPEED better aerodynamics higher will be the speeds.
FUEL EFFICIENCY better aerodynamics , less work for engine.
AERODYNAMICS IN MCLAREN F1
SPECIFICATIONS
FRONT END
REAR END
SCOOPS
WINGS
Mclaren F1
AERODYNAMIC DEVICES
SPOILERS
NACA DUCTS Increase rate of flow To expose air to areas not exposed to direct air flow.
METHODS TO EVALUATE AERODYNAMICS IN CARS
WIND TUNNELS
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Research tool to study effect of air moving over a solid object. Trial and error process. Special pressure paints for analysis. Detailed analysis of air flow patterns. Analyzing for the optimal design.
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SOFTWARES
DEVELOPMENTS IN CFD
ANSYS, CATIA,ALIAS STUDIO ANALYZE CHANGES DURING DESIGN PHASE AND DEVELOPMENT REDUCES TIME TO DEVELOP OPTIMAL DESIGN ABLE TO STUDY INDIVIDUAL ELEMENTS, MORE EFFECTIVE
AERODYNAMIC IMPROVEMNTS IN THE CAR THAT WE ALREADY OWN
Keep your vehicle washed and waxed Remove mud flaps behind wheels Place license plate out of air flow Avoid roof-racks or carriers Close windows, close sunroof
CONCLUSION
Aerodynamics in cars is a factor in the over all performance of the car, it should never be compromised.
THANK YOU
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FRONT END
FRONTAL PRESSURE PRESSURE DIFFERENCE MINIMISE FRONTAL AREA REDUCE cd
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SCOOPS
ENGINE COOLING INCREASESFLOW RATE OF AIR
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REAR END
REAR VACUM FLOW DETACHEMENT TURBULANCE
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WINGS
PRODUCE DOWNFORCE REDUCE DRAG
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COEFFICIENT OF DRAG
Drag = 1/2xd x Cd x A Xv2
Measure of aerodynamic efficiency.
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SPECIFICATIONS
EngineType:V12 Curb Weight : 1100 kg. Displacement:6064 cc Horsepower:627 bhp @ 7400 rpm Torque:479 lb-ft @ 4000 rpm Performance0-60 mph:3.2 sec 0-100 mph:6.3 sec Top Speed:240 mph /hr BACK
