Preview

Aerofoil Design Xflr5

Good Essays
Open Document
Open Document
6185 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Aerofoil Design Xflr5
| 2012 | | [ANALYSIS OF MODEL AIRFOILS USING XFLR5 PROGRAM] | | |

Author : Student I.D : | Aashiq Zakir Hussain12108227 | Supervisor : | Dr. Patrick Frawley | Submission : Date | 26th October 2012 |

ABSTRACT Airfoil is the main part of the airplane which contributes the lift required by the airplane to fly in the air. By varying the wing’s area and the angle of attack, different lift can be created and can be used to fly the airplane. This program named XFLR5 is used for determining the airfoil characteristics. It will help them to save a lot of time on computing the equations and on the trial and error method. The program can also be used as basic tool to show the users what will happen when some variables like Reynolds number, the AOA of the wings and the speed of the aircraft are changed and how it will affect the results and lift generated. This project report deals with the analysis of widely used airfoils in the modern aircrafts. In this analysis, the lift, drag, pressure profiles and their coefficients of the airfoils are been calculated using xflr5 program. These are obtained in the form of graphical representation by feeding data such as Reynolds number, Mach number, Angle of Attack and dimensions of the airfoils to the program. The results such as maximum lift coefficient, stalling angle, maximum lift to drag ratio and such parameters are obtained and are been compared with each other.

TABLE OF CONTENTS

NOMENCLATURE…………………………………………………………………………………………..….4
INTRODUCTION 4
OBJECTIVES…………...…………………………………………………….………………………………….5



References: Web Links and Books: 1. http://en.wikipedia.org/wiki/NACA_airfoil 2. http://www.aerospaceweb.org/question/airfoils/q0041.shtml 3. http://www.ppart.de/aerodynamics/profiles/NACA4.html 4. http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&sqi=2&ved=0CCwQFjAB&url=http%3A%2F%2Fwww.pa.uky.edu%2F~rplebeau%2FME330%2FPHW3%2FPHW3_F08.pdf&ei=GD-IUOSnCpCYhQeQjYCIAw&usg=AFQjCNFH4vQKszu--W9FNXF-ie00O3iA2A&sig2=-l2qjAkJRDIA077FWb87gg 5. http://www.aerospaceweb.org/question/airfoils/q0041.shtml 6. http://james-horvath.com/NACA4DigitSeries 7. http://www.pa.uky.edu/~rplebeau/ME380/XFLR5_handout.pdf 8. www.scribd.com/doc/64019403/Tutorial-XFLR5 9. Fundamentals of Aerodynamics  By John D. Anderson .

You May Also Find These Documents Helpful

  • Better Essays

    As a result of the experiment and computation of data, the aerofoil was found to have a critical Mach number of M=0.732. Below this freestream Mach number the Prandtl-Glauert law predicted results very successfully. However, above this value, the law completely breaks down. This was found to be the result of local regions of supersonic flow and local shockwaves.…

    • 2069 Words
    • 9 Pages
    Better Essays
  • Powerful Essays

    Capstone

    • 4523 Words
    • 13 Pages

    The purpose of this research paper is show that winglets have benefits and drawbacks, and that the airliners that are currently using these devices have a competitive advantage compared to an airliner without winglets. Since the first winglet were first installed in 1977, on a LearJet 28. These small aerodynamic devices have proven to be beneficial and also have drawbacks. Winglets have since proven to save airliners and private owners thousands of dollars, but these devices due not come cheap. This paper will discuss how winglets have benefits and drawbacks that are proven to be more beneficial in the long run. Also this paper will discuss that having winglets are beneficial and airliners that are installing winglets have reduced their fuel consumption as early as 2000. Finally, this project will conclude that winglets do not just benefit a plane in its fuel consumption, but are enhancing the aircrafts performance with mileage and reducing cost for those that are flying within the plane.…

    • 4523 Words
    • 13 Pages
    Powerful Essays
  • Satisfactory Essays

    Purpose/Problem. The purpose of this challenge was to make a paper airplane that can fly the farthest and do see all of ours difference design that we make.. The problems that I had the folding and was the the wings part because I not that good. Folding or making wigs as you can first on or on the second one.…

    • 341 Words
    • 1 Page
    Satisfactory Essays
  • Satisfactory Essays

    Compare the experimentally measured CL with the Thin Aerofoil Theory prediction of . Discuss the similarity and discrepancy observed. The graph shows at small attack angle (4° and 8°), the measured Lift coefficient is quite close to theoretical predicted value , this is because at small attack angle, air stream flows along the aerofoil surface smoothly without flow separation, which fulfills the basic assumption of Thin Aerofoil Theory, hence the experimental result matches with theoretical value well. When further increase attack angle, the streamline become highly curved, until at certain angle the streamline is no longer attached to the aerofoil surface and flow separation is occurred, massive turbulence wake appears on aerofoil upper surface, which greatly reduce the lift. At this moment aerofoil is actually “blocking” the air flow, hence the Lift coefficient is significantly reduced after reach Stall angle, and can no long follow the theoretical predicted value . 3. What would you expect the lift and drag force to be when At , since the 0015 aerofoil is symmetrical, the pressure on upper and…

    • 1309 Words
    • 6 Pages
    Satisfactory Essays
  • Good Essays

    One of the requirements for this course is an Aircraft Performance Research Project that entails planning a flight from Denver International Airport (KDEN) to Chicago O'Hare International Airport (KORD) for a given aircraft, weather conditions, and assumptions. The objective is to apply what has been learned throughout this course. Drawing on aeronautics theory and using the performance charts and equations presented in the course, each student is to answer a sequence of questions that step through the planning process. Remember, as with all of the exercises, all work (calculations) must be shown as much as possible. After all of the questions have been answered, the next task is to create a two-dimensional representation of the flight path showing the airspeeds, distance, fuel burned, and fuel remaining for the Takeoff, Climb, Cruise, Descent, and Approach phases of the flight.…

    • 2660 Words
    • 15 Pages
    Good Essays
  • Better Essays

    Paper Airplanes

    • 1952 Words
    • 8 Pages

    * The relevance of this experiment is similar to understanding a real airplane. Paper airplane models are derived from an actual plane these days. The design of an airplane has so much to do with distance, hang time, speed, and many other factors. Understanding the models I have chosen to make help me better understand the actual design of an actual airplane in some ways.…

    • 1952 Words
    • 8 Pages
    Better Essays
  • Best Essays

    Boeing Report

    • 2380 Words
    • 10 Pages

    Chris Brady. 1999. Advanced Blended / Advanced Technology Winglets. [ONLINE] Available at:http://www.b737.org.uk/winglets.htm. [Accessed 04 March 13].…

    • 2380 Words
    • 10 Pages
    Best Essays
  • Good Essays

    The following report is based on an experiment conducted to calculate the lift curve slope for a symmetrical aerofoil subjected to varying angles of attack. Pressure readings were taken at different points on the upper and lower surface of the aerofoil. The report concludes that maximum lift is generated between 12 º -15º, which is also the stall point. It also states that region close to the leading edge contributes most to the lift force.…

    • 2306 Words
    • 10 Pages
    Good Essays
  • Powerful Essays

    Abstract The problem discussed in this report is how lift is truly generated on an aerofoil and also explaining the misconceptions of lift and why they are not correct. Further topics discussed are the Lift is a force that directly opposes the weight of an aircraft and holds the object in air. Since lift is a result of the thrust or motion of the aircraft it is therefore a force (vector) because it has a magnitude and a direction. But lift cannot be achieved without thrust.…

    • 2036 Words
    • 9 Pages
    Powerful Essays
  • Powerful Essays

    Piper Saratoga Lab Report

    • 1312 Words
    • 6 Pages

    With the total amount of drag forces on the aircraft at various angles of attack, the coefficient of drag (C_D) can be calculated. This calculation process follows similar equation to the coefficient of lift (C_L) in equation 4; however, it includes the force of drag (D) instead of the force of lift (L). The information needed for this calculation was collected from the flight…

    • 1312 Words
    • 6 Pages
    Powerful Essays
  • Good Essays

    What Is Delta Wing?

    • 908 Words
    • 4 Pages

    The Delta Wing Is a unique type of wing platform that has been part of the aviation engineering industry for many years. The Delta Wing has been used for numerous reasons. When working with delta wings, engineers must know that the design has both advantages and disadvantages. Through out the assignment, I will be using the research I have collected to identify the range of basic scientific principles and techniques relevant to the Delta Wing design and the history behind the Delta Wing.…

    • 908 Words
    • 4 Pages
    Good Essays
  • Better Essays

    Module 2). Aluminum alloys are preferred due to their high strength, low weight and relatively…

    • 1721 Words
    • 7 Pages
    Better Essays
  • Good Essays

    Winglets are near-vertical extensions of the wing tips used to increase the performance of an aircraft by reducing wingtip vortices and increasing the lift-to-drag ratio. Winglets were first studied by Richard Whitcomb in the late 1970’s to improve upon aircraft efficiency at a time when fuel conservation was necessary to save on costs with the rising fuel prices. Whitcomb found that winglets could offer an improvement in the lift-to-drag ration over planar wingtip extensions at the same level of the root bending moment. His contributions have led to many more studies on winglets over the past few decades. This paper will look at some of these studies on winglets and how winglets relate to performance of aircraft, as well as their economic and social impacts.…

    • 973 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Four Forces of Flight

    • 892 Words
    • 3 Pages

    Although, there are many concepts when it comes to aerodynamics, I’m going to discuss the four major ones today. Lift, weight, thrust, and drag. During flight, there is a constant relationship between these forces. Lift is the upward force created by the effect of airflow as it passes over and under the wing. The airplane is supported in flight by lift. Weight, which opposes lift, is caused by the downward pull of gravity. Thrust is the forward force which propels the airplane through the air, which varies with the amount of engine power being used. Opposing thrust is drag, which is a backward, or retarding, force which limits the speed of the airplane. I’m also going to introduce Newton’s second law, which explains how an object will change velocity if it is pushed or pulled upon, Newton’s third law, which states that forces always come in equal and opposite pairs, as well as Bernoulli’s principle, which explains how the differences in pressure create lift.…

    • 892 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    The 777 wing is the most aerodynamically efficient airfoil ever developed for subsonic commercial aviation. In a further refinement of designs introduced on the Boeing 757 and 767, the 777 wing features a long span with increased thickness. This advanced wing enhances the airplane's ability to achieve higher cruise speeds, climb quickly and cruise at higher altitudes than competing airplanes. It also allows the airplane to carry full passenger payloads out of many high-elevation, high-temperature airfields. Fuel volume requirements for the…

    • 500 Words
    • 2 Pages
    Satisfactory Essays

Related Topics