Effect of surface roughness on helicopter main rotor blade

This paper describes the effect of surface roughness when applied on helicopter main rotor blade. The aim is to prove that surface roughness can be used as a simple and inexpensive method to achieve better flight performance such as enhanced thrust and/or reduced power requirement. The research was...

Full description

Bibliographic Details
Main Authors:	W. N., W. Rohizan, Mohd.Rafie, Azmin Shakrine, Harmin, Mohammad Yazdi, Ciang, Chia Chen
Format:	Conference or Workshop Item
Language:	English
Published:	Institute of Physics Publishing 2016
Online Access:	http://psasir.upm.edu.my/id/eprint/54057/ http://psasir.upm.edu.my/id/eprint/54057/ http://psasir.upm.edu.my/id/eprint/54057/ http://psasir.upm.edu.my/id/eprint/54057/1/Effect%20of%20surface%20roughness%20on%20helicopter%20main%20rotor%20blade.pdf

id	upm-54057
recordtype	eprints
spelling	upm-540572018-02-27T03:00:28Z http://psasir.upm.edu.my/id/eprint/54057/ Effect of surface roughness on helicopter main rotor blade W. N., W. Rohizan Mohd.Rafie, Azmin Shakrine Harmin, Mohammad Yazdi Ciang, Chia Chen This paper describes the effect of surface roughness when applied on helicopter main rotor blade. The aim is to prove that surface roughness can be used as a simple and inexpensive method to achieve better flight performance such as enhanced thrust and/or reduced power requirement. The research was done experimentally, using scaled model of Eurocopter AS350 Ecureuil. Smooth profile of the main rotor blade was modified by applying surface roughness on the upper and lower camber in transition and turbulent boundary layer region, starting from 25% of chord length and extending up to the trailing edge (TE). This study was conducted with the conditions of a vertical flight (particularly in hover condition) since this is a high powerconsuming flight regime for helicopter. The experiment resulted in lower power requirement but at the expense of reduced thrust at the middle collective pitch level. At upper range of the collective pitch level, surface roughness was seen to delay the stall angle as well as increase the lift in the stall region. Meanwhile, at lower pitch level, there was an increase in thrust-to-power ratio. Institute of Physics Publishing 2016 Conference or Workshop Item PeerReviewed text en http://psasir.upm.edu.my/id/eprint/54057/1/Effect%20of%20surface%20roughness%20on%20helicopter%20main%20rotor%20blade.pdf W. N., W. Rohizan and Mohd.Rafie, Azmin Shakrine and Harmin, Mohammad Yazdi and Ciang, Chia Chen (2016) Effect of surface roughness on helicopter main rotor blade. In: AEROTECH VI - Innovation in Aerospace Engineering and Technology, 8–9 Nov 2016, Kuala Lumpur, Malaysia. (pp. 1-8). http://iopscience.iop.org/article/10.1088/1757-899X/152/1/012001/meta 10.1088/1757-899X/152/1/012001
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Putra Malaysia
building	UPM Institutional Repository
collection	Online Access
language	English
description	This paper describes the effect of surface roughness when applied on helicopter main rotor blade. The aim is to prove that surface roughness can be used as a simple and inexpensive method to achieve better flight performance such as enhanced thrust and/or reduced power requirement. The research was done experimentally, using scaled model of Eurocopter AS350 Ecureuil. Smooth profile of the main rotor blade was modified by applying surface roughness on the upper and lower camber in transition and turbulent boundary layer region, starting from 25% of chord length and extending up to the trailing edge (TE). This study was conducted with the conditions of a vertical flight (particularly in hover condition) since this is a high powerconsuming flight regime for helicopter. The experiment resulted in lower power requirement but at the expense of reduced thrust at the middle collective pitch level. At upper range of the collective pitch level, surface roughness was seen to delay the stall angle as well as increase the lift in the stall region. Meanwhile, at lower pitch level, there was an increase in thrust-to-power ratio.
format	Conference or Workshop Item
author	W. N., W. Rohizan Mohd.Rafie, Azmin Shakrine Harmin, Mohammad Yazdi Ciang, Chia Chen
spellingShingle	W. N., W. Rohizan Mohd.Rafie, Azmin Shakrine Harmin, Mohammad Yazdi Ciang, Chia Chen Effect of surface roughness on helicopter main rotor blade
author_facet	W. N., W. Rohizan Mohd.Rafie, Azmin Shakrine Harmin, Mohammad Yazdi Ciang, Chia Chen
author_sort	W. N., W. Rohizan
title	Effect of surface roughness on helicopter main rotor blade
title_short	Effect of surface roughness on helicopter main rotor blade
title_full	Effect of surface roughness on helicopter main rotor blade
title_fullStr	Effect of surface roughness on helicopter main rotor blade
title_full_unstemmed	Effect of surface roughness on helicopter main rotor blade
title_sort	effect of surface roughness on helicopter main rotor blade
publisher	Institute of Physics Publishing
publishDate	2016
url	http://psasir.upm.edu.my/id/eprint/54057/ http://psasir.upm.edu.my/id/eprint/54057/ http://psasir.upm.edu.my/id/eprint/54057/ http://psasir.upm.edu.my/id/eprint/54057/1/Effect%20of%20surface%20roughness%20on%20helicopter%20main%20rotor%20blade.pdf
first_indexed	2018-09-07T18:26:22Z
last_indexed	2018-09-07T18:26:22Z
_version_	1610974266600194048

Effect of surface roughness on helicopter main rotor blade

Similar Items