Design of a lift reduction device for passenger car

The performance and handling of automobile are significantly affected by its aerodynamic properties. One of the main causes of aerodynamic is about lifting force. This will influence all the aspect of the vehicles such as overall performance, fuel consumption, safety and stability. The addition of r...

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Main Author:	Gobinath, Raman
Format:	Undergraduates Project Papers
Language:	English English English English
Published:	2010
Subjects:	TL Motor vehicles. Aeronautics. Astronautics
Online Access:	http://umpir.ump.edu.my/id/eprint/1514/ http://umpir.ump.edu.my/id/eprint/1514/ http://umpir.ump.edu.my/id/eprint/1514/1/Design%20of%20a%20lift%20reduction%20device%20for%20passenger%20car%20%28Table%20of%20content%29.pdf http://umpir.ump.edu.my/id/eprint/1514/2/Design%20of%20a%20lift%20reduction%20device%20for%20passenger%20car%20%28Abstract%29.pdf http://umpir.ump.edu.my/id/eprint/1514/3/Design%20of%20a%20lift%20reduction%20device%20for%20passenger%20car%20%28Chapter%201%29.pdf http://umpir.ump.edu.my/id/eprint/1514/4/Design%20of%20a%20lift%20reduction%20device%20for%20passenger%20car%20%28References%29.pdf

id	ump-1514
recordtype	eprints
spelling	ump-15142017-04-06T07:13:00Z http://umpir.ump.edu.my/id/eprint/1514/ Design of a lift reduction device for passenger car Gobinath, Raman TL Motor vehicles. Aeronautics. Astronautics The performance and handling of automobile are significantly affected by its aerodynamic properties. One of the main causes of aerodynamic is about lifting force. This will influence all the aspect of the vehicles such as overall performance, fuel consumption, safety and stability. The addition of rear spoiler to an aerodynamically optimized car body, leads to decrease lift coefficients. In an aerodynamic field, the main important thing to get the stability and performance is to design a vehicle with low CL. The reduction of lift and flow separation is the key results that will be a point of discussion. Rear spoiler will reduce the flow separation at the trunk that causing the turbulent airflow. The wake region also will be reduced and this will make the lift force that produce at the rear trunk will reduce. The task was done by doing a Computational Fluid Dynamic (CFD) analysis for expected vehicle speed of 110 km/h. A lift force and drag force was obtained based on inputs from CFD analysis. This force was used to calculate the lift and drag coefficient of the model as a whole. The approach needed to justify the amount of lift that can be reduced by addition of a rear spoiler as compared to the model without the rear spoiler. This project is to get an overall comparison of the pressure distribution before and after the rear spoiler is added. Five different type of rear spoiler designed to study its effect on passenger car. The lift coefficient of the vehicle was minimized up to 0.0405 (case 4) by adding rear spoiler from 0.2036 without spoiler (case 1). This is due to the design type of spoiler in case 4 which cause greater pressure coefficient on upper wing of rear spoiler. 2010-12 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/1514/1/Design%20of%20a%20lift%20reduction%20device%20for%20passenger%20car%20%28Table%20of%20content%29.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/1514/2/Design%20of%20a%20lift%20reduction%20device%20for%20passenger%20car%20%28Abstract%29.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/1514/3/Design%20of%20a%20lift%20reduction%20device%20for%20passenger%20car%20%28Chapter%201%29.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/1514/4/Design%20of%20a%20lift%20reduction%20device%20for%20passenger%20car%20%28References%29.pdf Gobinath, Raman (2010) Design of a lift reduction device for passenger car. Faculty of Mechanical Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:52212&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English English English
topic	TL Motor vehicles. Aeronautics. Astronautics
spellingShingle	TL Motor vehicles. Aeronautics. Astronautics Gobinath, Raman Design of a lift reduction device for passenger car
description	The performance and handling of automobile are significantly affected by its aerodynamic properties. One of the main causes of aerodynamic is about lifting force. This will influence all the aspect of the vehicles such as overall performance, fuel consumption, safety and stability. The addition of rear spoiler to an aerodynamically optimized car body, leads to decrease lift coefficients. In an aerodynamic field, the main important thing to get the stability and performance is to design a vehicle with low CL. The reduction of lift and flow separation is the key results that will be a point of discussion. Rear spoiler will reduce the flow separation at the trunk that causing the turbulent airflow. The wake region also will be reduced and this will make the lift force that produce at the rear trunk will reduce. The task was done by doing a Computational Fluid Dynamic (CFD) analysis for expected vehicle speed of 110 km/h. A lift force and drag force was obtained based on inputs from CFD analysis. This force was used to calculate the lift and drag coefficient of the model as a whole. The approach needed to justify the amount of lift that can be reduced by addition of a rear spoiler as compared to the model without the rear spoiler. This project is to get an overall comparison of the pressure distribution before and after the rear spoiler is added. Five different type of rear spoiler designed to study its effect on passenger car. The lift coefficient of the vehicle was minimized up to 0.0405 (case 4) by adding rear spoiler from 0.2036 without spoiler (case 1). This is due to the design type of spoiler in case 4 which cause greater pressure coefficient on upper wing of rear spoiler.
format	Undergraduates Project Papers
author	Gobinath, Raman
author_facet	Gobinath, Raman
author_sort	Gobinath, Raman
title	Design of a lift reduction device for passenger car
title_short	Design of a lift reduction device for passenger car
title_full	Design of a lift reduction device for passenger car
title_fullStr	Design of a lift reduction device for passenger car
title_full_unstemmed	Design of a lift reduction device for passenger car
title_sort	design of a lift reduction device for passenger car
publishDate	2010
url	http://umpir.ump.edu.my/id/eprint/1514/ http://umpir.ump.edu.my/id/eprint/1514/ http://umpir.ump.edu.my/id/eprint/1514/1/Design%20of%20a%20lift%20reduction%20device%20for%20passenger%20car%20%28Table%20of%20content%29.pdf http://umpir.ump.edu.my/id/eprint/1514/2/Design%20of%20a%20lift%20reduction%20device%20for%20passenger%20car%20%28Abstract%29.pdf http://umpir.ump.edu.my/id/eprint/1514/3/Design%20of%20a%20lift%20reduction%20device%20for%20passenger%20car%20%28Chapter%201%29.pdf http://umpir.ump.edu.my/id/eprint/1514/4/Design%20of%20a%20lift%20reduction%20device%20for%20passenger%20car%20%28References%29.pdf
first_indexed	2023-09-18T21:54:43Z
last_indexed	2023-09-18T21:54:43Z
_version_	1777414002080481280

Design of a lift reduction device for passenger car

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