Design and analysis rear diffuser for HEV model

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

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Bibliographic Details
Main Author:	Mohd Syazrin, Sopnan
Format:	Undergraduates Project Papers
Language:	English
Published:	2008
Subjects:	TL Motor vehicles. Aeronautics. Astronautics
Online Access:	http://umpir.ump.edu.my/id/eprint/2363/ http://umpir.ump.edu.my/id/eprint/2363/ http://umpir.ump.edu.my/id/eprint/2363/1/MOHD_SYAZRIN_BIN_SOPNAN.PDF

id	ump-2363
recordtype	eprints
spelling	ump-23632016-12-08T07:25:44Z http://umpir.ump.edu.my/id/eprint/2363/ Design and analysis rear diffuser for HEV model Mohd Syazrin, Sopnan 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 drag force and lifting force. This will influence all the aspect of the vehicles such as overall performance, fuel consumption, safety and stability. The ground effect uses the airflow between the rod surface and the vehicle underbody to create a downforce. Rear diffuser will produce low pressure in causing overall lift to be lowered down to negative values. The negative value is occurring depends on the diffuser cross- section area. Rear diffuser will reduce the flow separation at the rear that causing the turbulent airflow. The wake region also will be reduced and this will make the drag force that produce at the rear vehicle reduced. By the lower drag force will contribute to the lower fuel consumption. The task was done by doing a Computational Fluid Dynamic (CFD) analysis for expected vehicle speed of 40-140 km/h. A drag force was found based on Finite Element Method (FEM) based on inputs from CFD. This force was calculated to produce the drag coefficient of the model as a whole. The approach needed to justify the amount of drag that can be reduced by addition of a rear diffuser as compared to the model without a diffuser. In an aerodynamic field, the main important thing to get the stability, performance and good fuel consumption is to design a vehicle with low CD. The reduction of lift and flow separation is the key results that will be a point of discussion. This project is to get an overall comparison of the velocity and pressure distribution before and after the rear diffuser is added. 2008-11 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/2363/1/MOHD_SYAZRIN_BIN_SOPNAN.PDF Mohd Syazrin, Sopnan (2008) Design and analysis rear diffuser for HEV model. Faculty of Mechanical Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:41035&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TL Motor vehicles. Aeronautics. Astronautics
spellingShingle	TL Motor vehicles. Aeronautics. Astronautics Mohd Syazrin, Sopnan Design and analysis rear diffuser for HEV model
description	The performance and handling of automobile are significantly affected by its aerodynamic properties. One of the main causes of aerodynamic is about drag force and lifting force. This will influence all the aspect of the vehicles such as overall performance, fuel consumption, safety and stability. The ground effect uses the airflow between the rod surface and the vehicle underbody to create a downforce. Rear diffuser will produce low pressure in causing overall lift to be lowered down to negative values. The negative value is occurring depends on the diffuser cross- section area. Rear diffuser will reduce the flow separation at the rear that causing the turbulent airflow. The wake region also will be reduced and this will make the drag force that produce at the rear vehicle reduced. By the lower drag force will contribute to the lower fuel consumption. The task was done by doing a Computational Fluid Dynamic (CFD) analysis for expected vehicle speed of 40-140 km/h. A drag force was found based on Finite Element Method (FEM) based on inputs from CFD. This force was calculated to produce the drag coefficient of the model as a whole. The approach needed to justify the amount of drag that can be reduced by addition of a rear diffuser as compared to the model without a diffuser. In an aerodynamic field, the main important thing to get the stability, performance and good fuel consumption is to design a vehicle with low CD. The reduction of lift and flow separation is the key results that will be a point of discussion. This project is to get an overall comparison of the velocity and pressure distribution before and after the rear diffuser is added.
format	Undergraduates Project Papers
author	Mohd Syazrin, Sopnan
author_facet	Mohd Syazrin, Sopnan
author_sort	Mohd Syazrin, Sopnan
title	Design and analysis rear diffuser for HEV model
title_short	Design and analysis rear diffuser for HEV model
title_full	Design and analysis rear diffuser for HEV model
title_fullStr	Design and analysis rear diffuser for HEV model
title_full_unstemmed	Design and analysis rear diffuser for HEV model
title_sort	design and analysis rear diffuser for hev model
publishDate	2008
url	http://umpir.ump.edu.my/id/eprint/2363/ http://umpir.ump.edu.my/id/eprint/2363/ http://umpir.ump.edu.my/id/eprint/2363/1/MOHD_SYAZRIN_BIN_SOPNAN.PDF
first_indexed	2023-09-18T21:56:06Z
last_indexed	2023-09-18T21:56:06Z
_version_	1777414089463562240

Design and analysis rear diffuser for HEV model

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