SAE 2002 World Congress & Exhibition
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Sau1601 Automotive Aerodynamics
SCHOOL OF MECHANICAL ENGINEERING DEPARTMENT OF AUTOMOBILE ENGINEERING SAU1601 AUTOMOTIVE AERODYNAMICS 1 UNIT I INTRODUCTION TO AUTOMOTIVE AERODYNAMICS 2 I. Introduction Automotive Aerodynamics is the study of air flows around and through the vehicle body. More generally, it can be labelled “Fluid Dynamics” because air is really just a very thin type of fluid. Above slow speeds, the air flow around and through a vehicle begins to have a more pronounced effect on the acceleration, top speed, fuel efficiency and handling. Influence of flow characteristics and improvement of flow past vehicle bodies Reduction of fuel consumption More favourable comfort characteristics (mud deposition on body, noise, ventilating and cooling of passenger compartment) Improvement of driving characteristics (stability, handling, traffic safety) Scope of Vehicle Aerodynamics The Flow processes to which a moving vehicle is subjected fall into 3 categories: 1. Flow of air around the vehicle 2. Flow of air through the vehicle’s body 3. Flow processes within the vehicle’s machinery. The flow of air through the engine compartment is directly dependent upon the flow field around the vehicle. Both fields must be considered together. On the other hand, the flow processes within the engine and transmission are not directly connected with the first two, and are not treated here. The external flow subjects the vehicle to forces and moments which greatly influence the vehicle's performance and directional stability. These two effects, and has only lately focused on the need to keep the windows and lights free of dirt and accumulated rain water, to reduce wind noise, to prevent windscreen wipers lifting, and to cool the engine oil sump and brakes, etc. -
Design and Simulation of Aerodynamic Wings of Formula One Racing Car
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 07 Issue: 01 | Jan 2020 www.irjet.net p-ISSN: 2395-0072 DESIGN AND SIMULATION OF AERODYNAMIC WINGS OF FORMULA ONE RACING CAR Pritam Pain1, Deep Dewan2, Arighna De3 1Dept. of Mechanical Engineering, University of Engineering & Management, Kolkata, West Bengal, India 2Dept. of Mechanical Engineering, Kingston Polytechnic College, Barasat, West Bengal, India 3Dept. of Mechanical Engineering, University of Engineering & Management, Kolkata, West Bengal, India ---------------------------------------------------------------------***---------------------------------------------------------------------- Abstract: The aim of this report is to introduce the design and Fourth, a ground vehicle has fewer degrees of freedom than simulation of aerodynamic wings that is generally used in an aircraft, and its motion is less affected by aerodynamic formula one racing cars. In this paper, the basic concept of forces. aerodynamics, related terms are described. From the design of aerodynamic wings to the simulation of the wings using Fifth, passenger and commercial ground vehicles have very Solidworks 2016 well described in this paper. specific design constraints such as their intended purpose, high safety standards and certain regulations. Key Words: Aerodynamics, Wings, Solidworks, Simulation CONCEPT OF DRAG AND DOWNFORCE: INTRODUCTION: Motor sports are all about maximum performance, to be the Aerodynamics is the study of motion of air, fastest is the absolute. There is nothing else. particularly as interaction with a solid object, such as To be faster power is required, but there is a limit to how an airplane and automobile wing. It is a sub-field of fluid much power can be put on the ground. To increase this limit, dynamics and gas dynamics, and many aspects of force to ground must be applied on the wheels. -
Tokyo 2020 Men's Olympic Basketball Tournament 2020
Tokyo 2020 Men's Olympic Basketball Tournament 2020 TEAM ROSTER ARG - Argentina Height Date Int. No. Name Pos Age Club - Current Season m / ft in of Birth Games 4 SCOLA Luís (C) PF 2.04 / 6' 8" 30-APR-1980 41 Openjobmetis Varese (ITA) 157 7 CAMPAZZO Facundo PG 1.79 / 5' 10" 23-MAR-1991 30 Denver Nuggets (USA) 62 8 LAPROVITTOLA Nicolás PG 1.94 / 6' 4" 31-JAN-1990 31 Real Madrid (ESP) 62 9 BRUSSINO Nicolas SF 2.00 / 6' 7" 02-MAR-1993 28 C.B Zaragoza (ESP) 44 10 BOLMARO Leandro SG 11-SEP-2000 20 FC Barcelona (ESP) 11 CAFFARO Francisco C 2.07 / 6' 9" 19-MAY-2000 21 University of Virginia (USA) 12 DELIA Marcos C 2.06 / 6' 9" 08-APR-1992 29 Allianz Trieste (ITA) 69 14 DECK Gabriel SF 2.02 / 6' 8" 08-FEB-1995 26 Oklahoma City Thunder (USA) 30 17 VILDOZA Luca PG 1.91 / 6' 3" 11-AUG-1995 25 New York Knicks (USA) 18 22 VAULET Juan Pablo SF 1.98 / 6' 6" 22-MAR-1996 25 BAXI Manresa (ESP) 4 29 GARINO Patricio SF 1.96 / 6' 5" 17-MAY-1993 28 BC Zalgiris (LTU) 31 83 GALLIZZI Tayavek C 2.05 / 6' 9" 08-FEB-1993 28 Regatas Corrientes (ARG) 33 Total Number of Players : 12 Team Age Average : 27.7 Team Height Average : 1.98 / 6' 6" Coach HERNANDEZ Sergio 01-NOV-1963 Assistant Coach PICCATO Gabriel Fernando 20-DEC-1971 Assistant Coach SANTANDER Silvio 19-JAN-1972 Note: - Number of senior int. -
1982-07-17 Kerrville Folk Festival and JJW Birthday Bash Page 48
BB049GREENLYMONT3O MARLk3 MONTY GREENLY 0 3 I! uc Y NEWSPAPER 374 0 E: L. M LONG RE ACH CA 9 0807 ewh m $3 A Billboard PublicationDilisoar The International Newsweekly Of Music & Home Entertainment July 17, 1982 (U.S.) AFTER `GOOD' JUNE AC Formats Hurting On AM Dial Holiday Sales Give Latest Arbitron Ratings Underscore FM Penetration By DOUGLAS E. HALL Billboard in the analysis of Arbitron AM cannot get off the ground, stuck o Retailers A Boost data, characterizes KXOK as "being with a 1.1, down from 1.6 in the win- in ter and 1.3 a year ago. ABC has suc- By IRV LICHTMAN NEW YORK -Adult contempo- battered" by its FM competitors formats are becoming as vul- AC. He notes that with each passing cessfully propped up its adult con- NEW YORK -Retailers were while prerecorded cassettes contin- rary on the AM dial as were top book, the age point at which listen - temporary WLS -AM by giving the generally encouraged by July 4 ued to gain a greater share of sales, nerable the same waveband a ership breaks from AM to FM is ris- FM like call letters and simulcasting weekend business, many declaring it according to dealers surveyed. 40 stations on few years ago, judging by the latest ing. As this once hit stations with the maximum the FCC allows. The maintained an upward sales trend Business was up a modest 2% or spring Arbitrons for Chicago, De- teen listeners, it's now hurting those result: WLS -AM is up to 4.8 from evident over the past month or so. -
Aerodynamics of Road Vehicles
10 Aerodynamics of Road Vehicles THOMAS MOREL I. INTRODUCTION Vehicle aerodynamics concerns the effects arising due to motion of the vehicle through, or relative to, the air. Its importance to road vehicles became apparent when they started to achieve higher speeds. The automobile as we know it came onto the scene in the last decade of the nineteenth century. Its beginnings roughly coincided with the advent of powered flight, and perhaps for this reason, it became of interest to aerodynamicists right from the start. One of the first attempts to apply aerodynamic principles to road vehicles was the streamlining given to the first holder of the land speed record, a car named Jantaud driven by Gaston Chaseloup-Laubat (Fig. 1). This vehicle held the record several times, culminating with 93 kmIhr (58 mph) achieved in 1899. The early interest in vehicle drag continued and an early paper published in 1922 by Klemperet1) (apparently the very first paper on the subject) already reported actual wind tunnel studies on several then current automobile shapes and also on one low-drag shape. The work was done in the wind tunnel of the Zeppelin Company which was involved in the development and construction of dirigibles. The influence of dirigibles showed in the shape of the low-drag model, which had a streamlined teardrop shape and no wheels. The drag coefficient of this model was 0.15, and it is interesting to note that this value is still among the lowest obtained for a vehicle-shaped body near the ground. The thrust of the original work during the first few decades of the twentieth century was toward the reduction of drag to increase the top speed of road vehicles. -
2007-Porsche-Cayman-Brochure.Pdf
7 0 0 8 0 1 0 0 T K M Porsche Cars North America, Inc. 980 Hammond Drive, Suite 1000 Atlanta, Georgia 30328 Dr. Ing. h.c. F. Porsche AG is the owner of numerous trademarks, both registered and unregistered, including without limitation the Porsche Crest®, Porsche®, Boxster®, Carrera®, Cayenne®, Tiptronic®, VarioCam®, PCM®, 911®, and the model numbers and distinctive shapes of Porsche's automobiles such as, the federally registered 911 automobile. The third party trademarks contained herein are the properties of their respective owners. Porsche Cars North America, Inc. believes the specifications to be correct at the time of printing. However, specifications, standard equipment and options are subject to change without n a notice. Some options may be unavailable when your car is built. Some vehicles may be shown with non-U.S. equipment. Please ask your dealer for advice m concerning the current availability of options and verify the optional equipment that you ordered. Porsche recommends seat belt usage and observance of y a traffic laws at all times. C The Cayman e h © 2006 Porsche Cars North America, Inc. Printed in the U.S.A MKT 001 080 07 www.porsche.com 1-800-PORSCHE T Cayman and Cayman S The Cayman 2 Performance 22 Contents Safety 50 Environment 60 Comfort and Personalization 64 Specifications 88 I Two-seater sports coupe Two seats. Four wheels. Six At its Frankfurt Motor Show horizontally opposed cylinders. debut, the Cayman was hailed Cayman S I Mid-mounted engine It all adds up to one result: as “Best in Show” by AutoWeek I Rear-wheel drive an unprecedented blend magazine: instant acclaim for I Dynamic design of breathtaking design. -
Numerical and Experimental Investigations on the Aerodynamic Characteristic of Three Typical Passenger Vehicles
Journal of Applied Fluid Mechanics, Vol. 7, No. 4, pp. 659-671, 2014. Available online at www.jafmonline.net, ISSN 1735-3572, EISSN 1735-3645. Numerical and Experimental Investigations on the Aerodynamic Characteristic of Three Typical Passenger Vehicles Y. Wang1, 2†, Y. Xin1, Zh. Gu3, Sh. Wang3, Y. Deng1 and X. Yang4 1Hubei Key Laboratory of Advanced Technology of Automotive Parts, Wuhan University of Technology, Wuhan 430070, China 2State Key Laboratory of Automotive Simulation and Control, Changchun 130025, China 3State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Changsha 430082, China 4Wuhan Ordnance Noncommissioned officers School, Wuhan 430075, China † Corresponding Author Email: [email protected] (Received September 6, 2013; accepted November 11, 2013) ABSTRACT The numerical simulation and wind tunnel experiment were employed to investigate the aerodynamic characteristics of three typical rear shapes: fastback, notchback and squareback. The object was to investigate the sensibility of aerodynamic characteristic to the rear shape, and provide more comprehensive experimental data as a reference to validate the numerical simulation. In the wind tunnel experiments, the aerodynamic six components of the three models with the yaw angles range from -15 and 15 were measured. The realizable k-ε model was employed to compute the aerodynamic drag, lift and surface pressure distribution at a zero yaw angle. In order to improve the calculation efficiency and accuracy, a hybrid Tetrahedron-Hexahedron- Pentahedral-Prism mesh strategy was used to discretize the computational domain. The computational results showed a good agreement with the experimental data and the results revealed that different rear shapes would induce very different aerodynamic characteristic, and it was difficult to determine the best shape. -
SAE World Congress & Exhibition
SAE World Congress & Exhibition Technical Session Schedule As of 04/22/2007 07:40 pm Monday, April 16 Is the Light Duty Diesel Ready for Prime Time? Session Code: CONG70 Room FEV Powertrain Innovation Forum Session Time: 10:30 a.m. Beginning last year at the SAE World Congress, a large focus was given to diesel technology. Topics varied from where we are, how it can be implemented cost effectively, alternatives to aftertreatment, production capacity to economic relevance, just to name a few. One year later we're back to revisit light duty diesel technology and look at the successes and roadblocks readying the technology for commercialization. Will the market be ready for the estimated share increase predicted by many by the year 2015? Will the fuel infrastructure, the repair sector and the regulatory agencies be prepared for the large increase in usage? These and other challenges will be discussed by the panel of experts. Moderators - Walter S. McManus, Director-AA Division, OSAT, UMTRI Panelists - James J. Eberhardt, Chief Scientist, Office of FreedomCAR & Veh Tech, US DOE; Christopher Grundler, Deputy Dir, Off of Transp & Air Qty, US EPA; Robert Lee, VP, PowerTrain Product Engineering, DaimlerChrysler Corp.; Tony Molla, VP, Communications, National Inst. for Auto Serv Excellence; James E. Williams, Sr. Downstream Manager, American Petroleum Institute Monday, April 16 A Status Report From North America's Powertrain (NAIPC) Leadership Session Code: CONG71 Room FEV Powertrain Innovation Forum Session Time: 1:30 p.m. NAIPC is an invitation-only event where today's North American powertrain leaders come together and discuss relative topics that impact the automotive industry today and in the future. -
Aerodynamic and Thermal Analysis of a Heat Source at the Underside of a Passenger Vehicle
AERODYNAMIC AND THERMAL ANALYSIS OF A HEAT SOURCE AT THE UNDERSIDE OF A PASSENGER VEHICLE by Rocky Khasow A thesis submitted in Partial Fulfillment of the Requirements for the Degree of Master of Applied Science in The Faculty of Applied Sciences Mechanical Engineering University of Ontario Institute of Technology December 2014 © Rocky Khasow, 2014 Abstract and Keywords The first part of this thesis involves full experimental and numerical studies to understand the effects of cross-winds on the automotive underbody aero-thermal phenomena using a 2005 Chevrolet Aveo5 with a heat source affixed to it to create a baseline. The results show that irrespective of the yaw angle used, only temperatures in the vicinity of the heat source increased. The rear suspension also deflected the airflow preventing heat transfer. The second part of this thesis investigated using a diffuser to improve hybrid electric battery pack cooling. It was found that the diffuser led to more consistent temperatures on the diffuser surface, suggesting the same for the battery. Keywords: automotive aerodynamics, thermodynamics, aero-thermal, wind tunnel, computational fluid dynamics, CFD, underbody, cross-winds, battery pack, diffusers. ii Acknowledgements Financial support this research which was supported by NSERC through a Discovery and Engage grants is gratefully acknowledged. The support by Aiolos Engineering Corporation (the industry partner of this thesis) and its contact person and expert aerodynamicist (Scott Best) are greatly appreciated. The gracious support of the ACE’s executives in donating some climatic wind tunnel time for this thesis is acknowledged. The hard work and professionalism of staff members of ACE including John Komar, Gary Elfstrom, Pierre Hinse, Warren Karlson, Kevin Carlucci, Tyson Carvalho, Randy Burnet, Logan Robinson, Andrew Norman, Anthony Van De Wetering is appreciated and acknowledged. -
Drag Reduction in an Automobile by Using Aerodynamic Shapes
International Journal of Engineering Research & Technology (IJERT) ISSN: 2278-0181 Vol. 4 Issue 10, October-2015 Drag Reduction in An Automobile by using Aerodynamic Shapes Arvindakarthik K S Mohan Kumar K K Department of Aeronautical Engineering Department of Aeronautical Engineering Sri Ramakrishna Engineering College Sri Ramakrishna Engineering College Coimbatore-641030, Tamil Nadu, INDIA Coimbatore-641030, Tamil Nadu, INDIA Gokul Sangar E Department of Aeronautical Engineering Sri Ramakrishna Engineering College Coimbatore-641030, Tamil Nadu, INDIA Abstract - This paper deals with the reduction of drag. The experimentation can produce sustainable results. maximum concerns of the automotive aerodynamics are Researchers [2] have also investigated the effects of reducing drag, reducing wind noise, minimizing noise utilizing various geometries for the components of the emission, and preventing undesired lift forces and other airfoils behind vans. Others [4] have investigated the causes of aerodynamic instability at high speeds. For some wing/body interaction in generic shapes of closed-wheel classes of racing vehicles, it may also be important to produce race-cars. There have also been investigations in the desirable downwards aerodynamic forces to improve traction patterns of airflow in case of convertible cars [5]. However, and thus cornering abilities. The characteristic shape of a there still great potential for research in this application of road vehicle is bluff, compared to an aircraft and it operates fluid dynamics. very close to the ground, rather than if free air. The operating speeds are lower. Finally, the ground vehicles has fewer A moving van experiences an increase in aerodynamic degree of freedom of motion is less affected by aerodynamic force with an increase in its velocity. -
SAE Vehicle Dynamics Technology Collection : Technical Papers
SAE Vehicle Dynamics Technology Collection : Technical Papers 11th Annual SAE Brake Colloquium and Engineering Display 933070 Title: RTV—A friction material designers view 933071 Title: Practical evaluation and FEM-modelling of a squealing disc brake 933072 Title: Geometric induced instability in drum brakes 14th Annual Brake Colloquium and Engineering Display 962128 Title: Experimental analysis of low-frequency brake squeal noise 962130 Title: Development of correlation between experimental and analytical modal analysis of brake pads 17th Annual Brake Colloquium and Engineering Display 1999-01-3400 Title: Disc brake corner system modeling and simulation Title: A proposal to predict the noise frequency of a disc brake based on the friction pair interface 1999-01-3403 geometry 1999-01-3405 Title: Global NVH matrix for brake noise—A Bosch proposal 1999-01-3407 Title: Prediction of damping treatment dynamics as bonded to a brake shoe and lining Title: An experimental investigation of disk brake creep-groan in vehicles and brake dynamometer 1999-01-3408 correlation 1999-01-3410 Title: Calculation of average coefficient of friction during braking 18th Annual Brake Colloquium and Engineering Display 2000-01-2753 Title: Dynamic modeling of brake friction coefficients 2000-01-2760 Title: Ultra Q™process 2000-01-2763 Title: Cost-effective Aluminium MMC brake discs 2000-01-2764 Title: Modal participation analysis for identifying brake squeal mechanism 2000-01-2765 Title: On the analysis of brake squeal propensity using finite element method 2000-01-2766 -
Midweek Basketball Coupon 21/10/2020 09:36 1 / 2
Issued Date Page MIDWEEK BASKETBALL COUPON 21/10/2020 09:36 1 / 2 1ST HALF INFORMATION 2-WAY ODDS (Incl. OT) POINT SPREADS (Incl. OT) TOTAL SPREADS (Incl. OT) POINTS SPREADS 1ST HALF TOTAL SPREADS GAME CODE 1 2 HOME X1 X2 HOME X1 X2 TOTAL X- X+ TOTAL X- X+ HOME TOTAL No CAT TIME DET NS L 1 HOME TEAM AWAY TEAM 2 HC HOME AWAY HC HOME AWAY POINTS U O POINTS U O HC HOME AWAY POINTS U O Wednesday, 21 October, 2020 3771 PHILC 11:00 1 1.70 NORTHPORT BATANG PIE.. 7 10 NLEX ROAD WARRIORS 2.00 -1.5 1.80 1.90 -2.5 1.90 1.80 - - - - - - -0.5 1.85 1.85 - - - 3772 WCBA 11:30 1 1.01 XINJIANG WOJIANG 4 TIANJIN ZHONGXIN 10.0 -30.5 1.85 1.80 -29.5 1.75 1.90 - - - - - - - - - - - - 3679 KOR 13:00 1 2.20 KCC EGIS SEOUL SK KNIGHTS 1.60 3.5 1.80 1.90 2.5 1.95 1.75 - - - - - - 1.5 1.80 1.85 - - - 3773 JAPB 13:05 1 1.85 ALVARK TOKYO UTSUNOMIYA BREX 1.85 1.5 1.75 1.95 -1.5 1.95 1.75 - - - - - - -0.5 1.95 1.75 - - - 3774 JAPB 13:05 1 2.85 KYOTO HANNARYZ SEAHORSES MIKAWA 1.35 6.5 1.80 1.90 5.5 1.90 1.75 - - - - - - 3.5 1.80 1.90 - - - 3775 JAPB 13:05 1 3.05 LEVANGA HOKKAIDO AKITA NORTHERN HAPPI.. 1.31 6.5 1.85 1.80 7.5 1.75 1.95 - - - - - - 3.5 1.85 1.85 - - - 3776 JAPB 13:05 1 1.27 NAGOYA DIAMOND DOLP.