Aerodynamic consideration of a solar car can greatly increase the range by reducing the aerodynamic drag on the body. Vattenfall solar team dsm helps 7x solar car race champions. Pdf aerodynamic optimization in light weight solar vehicle design. In solar cars, efficiency is very important, and you dont want to waste energy. Whereas a conventional motor uses 10 kw to travel at 100 kmh, an electric motor uses as much as a hair dryer, i. Your clients have challenged you to apply your extensive aerodynamics expertise to design an innovation for an existing product or service of your choosing. Designing, building of solar race car for the world solar challenge. Aerodynamics battery chassis human interface low voltage systems motor solar suspension telemetry electrical lead gilberto garcia battery benjamin lim solar array samin riazi telemetry keiser ruiz motor kevin kuntjoro low voltage systems gilbert. Aerodynamics analysis on solar car body based on fluent ieee. Nov 14, 2014 in this episode i get to talk about the aerodynamic design of one of the coolest cars on the road, the solar car vehicle.
Keywords solar car, aerodynamics, computational fluid. Aerodynamics fundamental for automotive fluid mechanics primer reynolds number re, ratio between inertia and viscous force. An introduction to building a model solar car student guide for the. Solar cars would harness energy from the sun via solar panels. If we consider that a flat plate has a cd of about 1. The freeman solar car was a 3wheeler with a solar panel on the roof. The cars are then finished using files, sandpaper, paint and decals.
Reduced drag will result in low power loses thereby increasing the range. Pdf the aerodynamic design and development of the university of new south wales ultralowdrag solarelectric sunswift iv car is. Formula 1 cars, with their wings and open wheels a massive drag component manage a minimum of about 0. Basic aerodynamics subcourse number al0966 edition b us army aviation logistics school fort eustis, virginia 236045439 2 credit hours edition date. The balance between electric energy generated from solar cells and energy consumption, dictated in part by the running resistance, determines the cruising speed of a solar car. The system key element is the capacity to manage the whole vehicle heat rejection need with a single layer radiator enabling the redesign of the front end so reducing the aerodynamic drag and. Project report on solar car pdf technology we aim to make solar energy powered car in our project. Once a design is proposed, the shape should be tested to obtain. A solar panel is a packaged, connected assembly of solar cells, also called photovoltaic cells which are solid state devices that can convert solar energy directly into electrical energy through. As speeds increase, the aerodynamic loss factor dominates. But something you must also keep in mind is that a light car can be pushed easily by the wind too. Study materials aerodynamics aeronautics and astronautics. Solar road vehicles have very specific design requirements.
Some free papers pdf on race car aerodynamic post wed aug 25, 2010 7. V d, where d characteristic length overall length of the car mach number m, ratio between vehicle speed and speed of sound at sea level 760mph. If we could drive a solar powered car, that auto dream would come true. The result is a highly qualitative, illustrated set of notes. Imagine your rearwheeldrive solar car has trouble its back wheels are slipping. The kidwind project is a team of teachers, students, engineers, and prac. Whereas a conventional motor uses 10 kw to travel at 100 kmh, an. This makes their aerodynamic characteristics quite different from classic sedan. A design guide for solar race car teams 2003 clinical supervision a competencybased approach, carol a. A guide to the design and construction of solarpowered racing vehicles. The energy from the sun strikes the earth throughout the entire day. Once you get past around 1500 watts of solar output, its far more worth your time and effort to improve the body shape than it is anything else on the vehicle.
Despite their differences in density, most fluids move the same way and can be described by the same equations. Even if the wind does not blow the car over, it may make it harder to go in a straight line. In fact, aerodynamics can account for 70% of a car s losses. Pdf solar car racing has created a competitive platform for research into alternative energies, particularly the utilization of solar energy. Solar car paving the road for sustainable transportation adviser. Also explore the seminar topics paper on solar cars with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year mechanical engineering me or production automobile students for the year 2019 2020.
Aerodynamic tesla model s electric car wins the wind. Because solar car has a low power, it is necessary to have a body with a lower aerodynamic drag coefficient. You will grade the practice exercise when you complete it using the answer key which is enclosed. Aerodynamics is the study of the loads exerted by the flow of air over an aircraft there are other applications but they are boring. Nunax is the lightest car so far at just 5kg, 4cm thinner than its predecessor and designed to act like a sail to harness wind. Aerodynamic optimization of a solar bio diesel hybrid vehicle neal a. To achieve this and remain competitive, the team works within extremely tight parameters. Comparison of computational and experimental aerodynamics. The reader interested in history and evolution of solar car design concepts is directed towards tamais comprehensive the leading edge, although that reference mostly predates the present ubiquity of computational fluid dynamics cfd.
Solar car aerodynamic design for optimal cooling and high. A guide to the design and construction of solar powered racing vehicles. The national renewable energy laboratory nrel 1 nrelbk82030828 revised 82301 an introduction to building a model solar car student guide for the junior solar sprint competition produced by. Fluid dynamics study of liquids and gases fluids that are moving. Cut out for solar car top hole pu n c h solar ruler fold roll bar up t. Thuraya ip voyager thuraya xt thuraya vehicle docking stations location. During solar car races, nunax will run at around 90kmh with a top speed of kmh. Gregor veble abstract the purpose of this seminar is to describe main aerodynamic principles of car racing. Aerodynamic design and development of the sunswift iv.
Find materials for this course in the pages linked along the left. The cars are tested on a fortyfoot long track using an air compressor for power set to 100 psi pounds per square inch and a sportsradar gun to test the. I interview the aerolead of the university of torontos bluesky solar. For the shuttle, each specialty was primarily associated with analysis of flight through the earths atmosphere. The national renewable energy laboratory nrel 1 nrelbk82030828 revised 82301 an introduction to building a model solar car. Lecture notes aerodynamics aeronautics and astronautics. In fact, aerodynamics can account for 70% of a cars losses. The sequential calculation procedure based on numerical simulation of the turbulent air flow around each solar car prototype at 90 kmhr allowed a reduction of. The stanford solar car project uses sabalcore hpc cloud to improve aerodynamics for their 2015 world solar challenge entry the stanford solar car project sscp is americas top solar car team, and the best undergraduate team in the world. In the design mode, you can change design variables including the flight conditions, the engine size, the inlet performance, the turbo machinery compressor and turbine performance, the combustors or burner performance, or the nozzle. Aerodynamics johnson space center jsc offers technical leadership in the engineering disciplines of aerodynamics, aerothermodynamics, and fluid dynamics. The dominant factor of a solar car is running resistance, especially aerodynamic drag.
July 1994 subcourse overview this subcourse is to be completed on a selfstudy basis. Also explore the seminar topics paper on aerodynamics with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year mechanical engineering me or production automobile students for the year 2019 2020. The requirements for a solar car are different from those for a conventional car because all the energy used to run the solar car is provided by the sun and the storage capability of the solar cars batteries. The problem faced was to provide more than a laymans treatment of the subject but not the detail as taught in many individual courses on the college level. Thurayas equipment proved invaluable to us even before the race. If any teams have historical documentation or reference documents specific to their team that they would like to share, please upload it here. Solar motor tamiya solar motor 01cy604 recommended solar panel tamiya solar panel 1. Explore aerodynamics with free download of seminar report and ppt in pdf and doc format.
Aerodynamic investigation of a solar car body taylors university. The validity of simplified approaches was examined by experiments with flat photovoltaic module subject to boundary layer flow. Solar car slipstream turquoise turbulent flow aerodynamics one goal for the teams who design solar cars, is to achieve extremely low aerodynamic drag while still maintaining a suitable surface for the solar cells and adequate space for the driver and the other components. Race car aerodynamics gregor seljak may, 2008 mentor. This exciting primer on solar racing literally starts from the ground up, describing how the interactions of a vehicle with its environment circumscribe its ultimate success, from aerodynamics to resistance and propulsion. Reducing aerodynamic drag and fuel consumption year 2002 statistics for combination trucks tractortrailers on nations highways 2. The fiberglass aerodynamic body is designed to have 120n. Nasa history division introduction to the aerodynamics of flight. Aerodynamics of a solar car hochschule fur technik.
Aerodynamic design of ultrastreamlined land vehicles, goro tamai. Numerical simulation of the flow past vehicle bodies 1 nyomaseloszlas a buszhomlokfal a. This paper deals with the aerodynamic development of a solar car purposed to. As mentioned earlier, the discussion on race car aerodynamics.
This paper will introduce the aerodynamic approach of the 96 honda solar car which participated in the world solar challenge, the worlds top solar car race. University of michigan solar car team world solar challenge products. It is shown that the shape of the car should be optimized not only to reduce aerodynamic drag but also to enhance heat removal and to increase power generated by photovoltaic modules. Several scaled down models of the design adopted for the coming race, as well as a design proposed by the author were built. Forced convection cooling of photovoltaic modules mounted on the surface of moving solar car is considered. This paper describes in detail the computationallyled aerodynamic design and development of the. Aerodynamics is part of a branch of physics called. A frontal projected area value is a crucial task to maximize the performance of a solar car. Part 3a ansys fluent for vehicle aerodynamics youtube.
Therefore it is important to gain as much energy as possible and to reduce all sources of loss in the system, such as aerodynamic drag and heat loss, in order. Aerodynamics and flight the wings allowed the spacecraft to. As a result of development in aerodynamics a properly designed solar car requires 1015% of the driving force of a conventional car. Speed,of course, is the most importantperformance factor in a race, and has to be increased. If we could drive a solarpowered car, that auto dream would come true. The car was actually two solar bicycles put together. Aerodynamics involves the study of local pressures generated over the vehicle while in flight and the resultant integrated forces and moments that, when coupled with. Aerodynamic analysis and design of a solar powered vehicle using. Vehicle aerodynamics includes three interacting flow fields. At 350 kg, zotsun will be uc irvines first ever fully solar powered car.
In 1979 englishman alain freeman invented a solar car pictured right. Development of aerodynamics for a solar race car sciencedirect. Aerodynamic design of a solar road vehicle springerlink. The present discussion, however, focuses on the effects of external aerodynamics only, and additional information on internal.
Kre 8r solar powered racer 1 you tube making system or. Zotsun features a double aarm suspension system and a chromoly tubular spaceframe chassis. Aerodynamics and flight the wings allowed the spacecraft. After designing their own creations, students cut out the car from wood using drill presses, band saws and scroll saws. Aerodynamics battery chassis human interface low voltage systems motor solar suspension telemetry electrical lead gilberto garcia battery benjamin lim solar array samin riazi telemetry keiser ruiz motor kevin kuntjoro low voltage systems gilbert garcia jigar hira sai muktevi andrew brown amanda tan andres cervantes henry kunal buty. The solar car was made up 12 selenium photovoltaic cells and a small pooley electric motor turning a pulley which in turn rotated the rear wheel shaft.
Called the sun mobile, cobb showcased the first solar car at the chicago powerama convention on august 31, 1955. Newtons 1st law applied to airplanes every object persists in its state of rest or uniform motion in a straight line unless it is compelled to change that state by. Aerodynamics seminar report, ppt, pdf for mechanical. Allgood auburn university, auburn, al, 36830 energy efficiency is the most critical aspect for a successful solar powered automobile and much can be gained from the reduction of aer odynamic drag on such a vehicle. Jsc maintains a highly skilled and experienced workforce, premier laboratories and test facilities, and stateoftheart analysis tools and databases. Explore solar cars with free download of seminar report and ppt in pdf and doc format. Solar cars seminar report, ppt, pdf for mechanical.
Of the suns energy and store it into the batteries of the solar car. Aerodynamics of a solar car hsr hochschule fur technik. Junior solar sprint an introduction to building a model. Aerodynamic optimization of a solar bio diesel hybrid vehicle. This paper will introduce the aerodynamic approach of the 96 honda solar car which participated in the world. Flat platform, covered with pmma and painted black in order to minimize light. Can involve complex math, but the basics are easy to understand laminar and turbulent flow. Design designing building eve was designed and built over a period of 15 months. A design of experiment doe comprising of influencing factors on the aerodynamic drag of the solar car was established to analyze the effects of the factors. Aerodynamic optimization of a solar bio diesel hybrid.
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