Effects of upstream square blockage on lift behaviour of a rotating cylinder

The usage of Unmanned Aerial Vehicle (UAV) is getting more and more significant in both the defense and commercial industry. As these UAVs normally carry a high payload and require a long runaway, it is important to develop a new method to increase the lift coefficient during takeoff and landing. Th...

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Bibliographic Details
Main Author:	Cheong, Xiang Hou
Format:	Thesis
Language:	English
Published:	2016
Subjects:	Cylinders - Aerodynamicssystems Cylinders - Testing Wind tunnel testing
Online Access:	http://psasir.upm.edu.my/id/eprint/70469/1/FK%202016%2083%20IR.pdf
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id	my-upm-ir.70469
record_format	uketd_dc
spelling	my-upm-ir.704692019-08-21T03:55:03Z Effects of upstream square blockage on lift behaviour of a rotating cylinder 2016-01 Cheong, Xiang Hou The usage of Unmanned Aerial Vehicle (UAV) is getting more and more significant in both the defense and commercial industry. As these UAVs normally carry a high payload and require a long runaway, it is important to develop a new method to increase the lift coefficient during takeoff and landing. The objective of the study is to study the lift generated by rotating cylinder at different spin rate at typical takeoff speed and also the effect upstream square blockage towards the lift generated by the rotating cylinder. Both wind tunnel experimental testing and numerical simulation was carried out to investigate the effect of different size of upstream blockage towards the performance of the rotating cylinder. The simulation adopted a fully turbulent flow, having Reynolds number varying from 5000 to 8000 and angular velocity of rotating cylinder varying from 0 to 3000 RPM. Validation of RANS code ANSYS Fluent was done with experimental results. The simulations results suggest that the blockage with the height of 32mm and 40mm, width of 8mm with a distance of 48mm from the center of the rotating cylinder will be the best configuration with near to tenth fold improvement in lift generation Cylinders - Aerodynamicssystems Cylinders - Testing Wind tunnel testing 2016-01 Thesis http://psasir.upm.edu.my/id/eprint/70469/ http://psasir.upm.edu.my/id/eprint/70469/1/FK%202016%2083%20IR.pdf text en public masters Universiti Putra Malaysia Cylinders - Aerodynamicssystems Cylinders - Testing Wind tunnel testing
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
topic	Cylinders - Aerodynamicssystems Cylinders - Testing Wind tunnel testing
spellingShingle	Cylinders - Aerodynamicssystems Cylinders - Testing Wind tunnel testing Cheong, Xiang Hou Effects of upstream square blockage on lift behaviour of a rotating cylinder
description	The usage of Unmanned Aerial Vehicle (UAV) is getting more and more significant in both the defense and commercial industry. As these UAVs normally carry a high payload and require a long runaway, it is important to develop a new method to increase the lift coefficient during takeoff and landing. The objective of the study is to study the lift generated by rotating cylinder at different spin rate at typical takeoff speed and also the effect upstream square blockage towards the lift generated by the rotating cylinder. Both wind tunnel experimental testing and numerical simulation was carried out to investigate the effect of different size of upstream blockage towards the performance of the rotating cylinder. The simulation adopted a fully turbulent flow, having Reynolds number varying from 5000 to 8000 and angular velocity of rotating cylinder varying from 0 to 3000 RPM. Validation of RANS code ANSYS Fluent was done with experimental results. The simulations results suggest that the blockage with the height of 32mm and 40mm, width of 8mm with a distance of 48mm from the center of the rotating cylinder will be the best configuration with near to tenth fold improvement in lift generation
format	Thesis
qualification_level	Master's degree
author	Cheong, Xiang Hou
author_facet	Cheong, Xiang Hou
author_sort	Cheong, Xiang Hou
title	Effects of upstream square blockage on lift behaviour of a rotating cylinder
title_short	Effects of upstream square blockage on lift behaviour of a rotating cylinder
title_full	Effects of upstream square blockage on lift behaviour of a rotating cylinder
title_fullStr	Effects of upstream square blockage on lift behaviour of a rotating cylinder
title_full_unstemmed	Effects of upstream square blockage on lift behaviour of a rotating cylinder
title_sort	effects of upstream square blockage on lift behaviour of a rotating cylinder
granting_institution	Universiti Putra Malaysia
publishDate	2016
url	http://psasir.upm.edu.my/id/eprint/70469/1/FK%202016%2083%20IR.pdf
_version_	1747812845221838848

Effects of upstream square blockage on lift behaviour of a rotating cylinder

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