Longitudinal Aerodynamic Characteristics of an Aircraft Model with and Without Winglet

The measurement of aerodynamic forces and moments acting on an aircraft model is important for the development of wind tunnel measurement technology. The primary purpose of wind tunnel measurements over the model for the forces and moments is to predict the performance of the full-scale vehicle....

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Main Author:	Hossain, Md. Altab
Format:	Thesis
Language:	English English
Published:	2005
Subjects:	Aerodynamic load
Online Access:	http://psasir.upm.edu.my/id/eprint/6014/1/FK_2005_19.pdf
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id	my-upm-ir.6014
record_format	uketd_dc
spelling	my-upm-ir.60142023-01-04T08:20:30Z Longitudinal Aerodynamic Characteristics of an Aircraft Model with and Without Winglet 2005-10 Hossain, Md. Altab The measurement of aerodynamic forces and moments acting on an aircraft model is important for the development of wind tunnel measurement technology. The primary purpose of wind tunnel measurements over the model for the forces and moments is to predict the performance of the full-scale vehicle. Force measurement techniques in wind tunnel testing are necessary for determining a variety of aerodynamic performance parameters. For three-dimensional aircraft models, forces and moments are usually measured directly using a balance system. The balance mechanically separates the total aerodynamic load on a model into its six aerodynamic components. Two fundamental types of balances, external and internal balances, are used today. External balances carry the loads outside the tunnel before they are measured and internal balances which fit in the model and are arranged to send data out through electrical wires.In this research work, six-component external balance is commissioned and the calibration has been thoroughly checked and the detailed procedure of measurement of aerodynamic forces is recommended. A set of winglet has been designed for the existing aircraft model at the Aerodynamics laboratory of the Aerospace Engineering Department, UPM. Further the aerodynamic forces are measured on the aircraft model having a rectangular wing with and without winglet attached to the model. Tests have been carried out on the aircraft model with and without winglet at the Reynolds numbers 170,000, 210,000 and 250,000. The experimental results show that lift curve slope increases by 1-6% with the addition of certain winglet configurations and at the same time the drag decreases by 20-28% as compared to those for the aircraft model without winglet for the maximum Reynolds number considered in the present study. Aerodynamic load 2005-10 Thesis http://psasir.upm.edu.my/id/eprint/6014/ http://psasir.upm.edu.my/id/eprint/6014/1/FK_2005_19.pdf text en public masters Universiti Putra Malaysia Aerodynamic load Engineering English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
topic	Aerodynamic load
spellingShingle	Aerodynamic load Hossain, Md. Altab Longitudinal Aerodynamic Characteristics of an Aircraft Model with and Without Winglet
description	The measurement of aerodynamic forces and moments acting on an aircraft model is important for the development of wind tunnel measurement technology. The primary purpose of wind tunnel measurements over the model for the forces and moments is to predict the performance of the full-scale vehicle. Force measurement techniques in wind tunnel testing are necessary for determining a variety of aerodynamic performance parameters. For three-dimensional aircraft models, forces and moments are usually measured directly using a balance system. The balance mechanically separates the total aerodynamic load on a model into its six aerodynamic components. Two fundamental types of balances, external and internal balances, are used today. External balances carry the loads outside the tunnel before they are measured and internal balances which fit in the model and are arranged to send data out through electrical wires.In this research work, six-component external balance is commissioned and the calibration has been thoroughly checked and the detailed procedure of measurement of aerodynamic forces is recommended. A set of winglet has been designed for the existing aircraft model at the Aerodynamics laboratory of the Aerospace Engineering Department, UPM. Further the aerodynamic forces are measured on the aircraft model having a rectangular wing with and without winglet attached to the model. Tests have been carried out on the aircraft model with and without winglet at the Reynolds numbers 170,000, 210,000 and 250,000. The experimental results show that lift curve slope increases by 1-6% with the addition of certain winglet configurations and at the same time the drag decreases by 20-28% as compared to those for the aircraft model without winglet for the maximum Reynolds number considered in the present study.
format	Thesis
qualification_level	Master's degree
author	Hossain, Md. Altab
author_facet	Hossain, Md. Altab
author_sort	Hossain, Md. Altab
title	Longitudinal Aerodynamic Characteristics of an Aircraft Model with and Without Winglet
title_short	Longitudinal Aerodynamic Characteristics of an Aircraft Model with and Without Winglet
title_full	Longitudinal Aerodynamic Characteristics of an Aircraft Model with and Without Winglet
title_fullStr	Longitudinal Aerodynamic Characteristics of an Aircraft Model with and Without Winglet
title_full_unstemmed	Longitudinal Aerodynamic Characteristics of an Aircraft Model with and Without Winglet
title_sort	longitudinal aerodynamic characteristics of an aircraft model with and without winglet
granting_institution	Universiti Putra Malaysia
granting_department	Engineering
publishDate	2005
url	http://psasir.upm.edu.my/id/eprint/6014/1/FK_2005_19.pdf
_version_	1776100248042602496

Longitudinal Aerodynamic Characteristics of an Aircraft Model with and Without Winglet

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