Unsteadiness in aircraft design

Topics: Wingtip vortices, Wing design, Airfoil Pages: 23 (4825 words) Published: April 24, 2015
A Report

On

UNSTEADINESS IN AIRCRAFT DESIGN
By

AVIRAL TALWAR
2011A4PS152U

At

BITS Pilani Dubai Campus
Dubai International Academic City, Dubai
U.A.E
Second Semester, 2013-2014

A Report
On
UNSTEADINESS IN AIRCRAFT DESIGN
BY

AVIRAL TALWAR

2011A4PS152U

Prepared in Partial Fulfillment of the
Project Course: ME F366 Laboratory Project
At

BITS Pilani Dubai Campus
Dubai International Academic City, Dubai
UAE

Second Semester, 2013-2014

II

MECH

BITS Pilani, Dubai Campus
Dubai International Academic City, Dubai
UAE
Course name: Laboratory Project
Course number: ME F366
Duration: 23.02.2014 to 22.05.2014
Date of start: 23.02.2013
Date of submission: 22.05.2014
Title of Report: Unsteadiness in aircraft design
Name / ID Number: Aviral Talwar/ 2011A4PS152U
Discipline of Student: B.E (Hons) Mechanical Engineering
Name of Project Supervisor: Dr. A.M. Surendra kumar
Project Area: Aerodynamics, Fluid Dynamics, Elasticity
Abstract:
The traditional process of aerodynamic design is carried out manually by trial-and-error method. This process requires a large number of design engineers working alongside a huge budget. In order to overcome this manual method, the technologically driven software design using CFD will provide a cost effective optimal design method. Software products for automatic aerodynamic design are intended to solve the basic problem of preliminary aerodynamic design: to develop a configuration with as low a

Signature of the Student

Signature of Supervisor

Date:

Date:
III

ACKNOWLEDGEMENTS

Firstly, I would like to express my sincere gratitude to Dr. R.N. Sahah, Director BPD who has given me an opportunity to understand and apply engineering concepts in real life problems through the Project.

I am very grateful to Prof. Dr.A.M. Surendra Kumar, Project in-charge, for assisting me enthusiastically in the entire project. It is only with his guidance that the objectives of the project have been accomplished.

I V

TABLE OF CONTENTS
TITLE

PAGE NO

Abstract………………………………………………………………………………………...III Acknowledgements…………………………………………………………………………..IV Chapter1 INTRODUCTION TO THE REPORT……………………………………………..1 1.1 Introduction………………………………………………………………………………….1 1.2 Layout of the Report………………………………………………………………………..1 Chapter2 LITERATURE SURVEY……………………………………………………………2 2.1 Introduction………………………………………………………………………………….2 2.2 Literature Survey……………………………………………………………………………2 2.3 Diagrams……………………………….……………………………………………………4 2.4 Inference from literature study………………………………………………………….....5 2.5 Scope of present work………………………………………………………………..……5 Chapter3 THEORY……………………………………………………………………….........6 3.1 Introduction………………………………………………………………………………….6 3.2 Theory……………………………………………………………………………………….6 3.2.1 Theory of wake Turbulence……………………………………………………………..6 3.2.2 Principle of Wake Turbulence…………………………………………………………..9 3.2.3 Components of Wake Turbulence………………………………………………………9 3.3 Advantages of Wake Turbulence………………………………………………………..11 3.4 Disadvantages of Wake Turbulence……………………………………………………11

3.5 Ways to measure Wake Turbulence……………………………………………………11 3.6 Analysis of Wake Turbulence……………………………………………………………12 Chapter4 DESIGN…………………………………………………………………………….13 4.1 Introduction…………………………………………………………………………..……13 4.2 Wing Design………………………………………………………………………….…...13 4.2.1 Airfoil……………………………………………………………………………...………14 4.2.2 Wing Incidence………………………………………………………………………….15 4.2.3 Taper Ratio………………………………………………………………………………15 4.2.4 Sweep Angel…………………………………………………………………………….16 4.3 Accessories………………………………………………………………………………..16 4.3.1 Strake…………………………………………………………………………………….16 4.3.2 Fence…………………………………………………………………………….………17 4.3.3 Vortex Generator……………………………………………………………………….17 Chapter5 DESIGN ANALYSIS AND RESULTS………………………………………...20 5.1 Introduction………….…………………………………………………………………….20 5.2 Design Analysis and Sample Calculation…………….………………………………..20 5.3 Results……………………………………………………………………………………..24 Chapter6...

References: [2] A. Betz, Verhalten von Wirbelsystemen, Z. Ang. Math. Mech. 12
(1932) 164–174.
[9] Kalviste J. Aircraft stability characteristics at high angles of attack. AGARD-CP-235,
Paper #29, 1978.
Optimization,” NASA TM 86317, Oct. 1984.
Application `a l’´ Etude des Effets des Retards,” La Recherche A´erospatiale, Vol. 2,
1995, pp
Aircraft, Vol. 37, No. 5, 2000, pp. 833–839.
Dynamics, Vol. 25, No. 5, 2002, pp. 985–987.
1
4% match (Internet from 04-Nov-2012)
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