Aerodynamic study of vehicle drag based on bluff body

The Ahmed'body represents a simplified geometry of 3D car model that can be used to study the flow characteristic in the .wake of vehicles.The main objective of this study is to analyze the drag of the Ahmed body with varying rear slant angle.The model occupied is 25°,30,and 350 rear slant angl...

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Bibliographic Details
Main Author:	Mohamad Kamarul, Shamsuddin
Format:	Undergraduates Project Papers
Language:	English
Published:	2009
Subjects:	TL Motor vehicles. Aeronautics. Astronautics
Online Access:	http://umpir.ump.edu.my/id/eprint/5150/ http://umpir.ump.edu.my/id/eprint/5150/ http://umpir.ump.edu.my/id/eprint/5150/1/MOHAMAD_KAMARUL_BIN_SHAMSUDDIN.PDF

id	ump-5150
recordtype	eprints
spelling	ump-51502015-03-03T09:23:23Z http://umpir.ump.edu.my/id/eprint/5150/ Aerodynamic study of vehicle drag based on bluff body Mohamad Kamarul, Shamsuddin TL Motor vehicles. Aeronautics. Astronautics The Ahmed'body represents a simplified geometry of 3D car model that can be used to study the flow characteristic in the .wake of vehicles.The main objective of this study is to analyze the drag of the Ahmed body with varying rear slant angle.The model occupied is 25°,30,and 350 rear slant angle where the-critical remarkable drag occur.The model,is simulated at the air, velocity, 40mls. The result is.validated using,previous study,(Ahmed, 1984)The CFD proved to bea useful technique since the compared reasonably well for both the current and the previous simulations. Concept of diffuser isapplied to the original model to check the drag, coefficient change.due to the different angle of diffuser. The tested diffluser an gle is .°' 1 Q° ° and coefficient change is analyzed.Major finding shows that the velocity flow underbody is become higher when adding the diffuser.The flows structure behind- the niodel was a separated region ovçr the slant and recirculation flows behind the model. The flow characteristic is influented by velocity change underbody,the observation indicates that the formation of vortices at the rear found to be c..iicwl , icopsistency iii p at.,is bringing to the drag losses, 2Q° The drag 2009-11 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/5150/1/MOHAMAD_KAMARUL_BIN_SHAMSUDDIN.PDF Mohamad Kamarul, Shamsuddin (2009) Aerodynamic study of vehicle drag based on bluff body. Faculty of Mechanical Engineering , Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:45516&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 Mohamad Kamarul, Shamsuddin Aerodynamic study of vehicle drag based on bluff body
description	The Ahmed'body represents a simplified geometry of 3D car model that can be used to study the flow characteristic in the .wake of vehicles.The main objective of this study is to analyze the drag of the Ahmed body with varying rear slant angle.The model occupied is 25°,30,and 350 rear slant angle where the-critical remarkable drag occur.The model,is simulated at the air, velocity, 40mls. The result is.validated using,previous study,(Ahmed, 1984)The CFD proved to bea useful technique since the compared reasonably well for both the current and the previous simulations. Concept of diffuser isapplied to the original model to check the drag, coefficient change.due to the different angle of diffuser. The tested diffluser an gle is .°' 1 Q° ° and coefficient change is analyzed.Major finding shows that the velocity flow underbody is become higher when adding the diffuser.The flows structure behind- the niodel was a separated region ovçr the slant and recirculation flows behind the model. The flow characteristic is influented by velocity change underbody,the observation indicates that the formation of vortices at the rear found to be c..iicwl , icopsistency iii p at.,is bringing to the drag losses, 2Q° The drag
format	Undergraduates Project Papers
author	Mohamad Kamarul, Shamsuddin
author_facet	Mohamad Kamarul, Shamsuddin
author_sort	Mohamad Kamarul, Shamsuddin
title	Aerodynamic study of vehicle drag based on bluff body
title_short	Aerodynamic study of vehicle drag based on bluff body
title_full	Aerodynamic study of vehicle drag based on bluff body
title_fullStr	Aerodynamic study of vehicle drag based on bluff body
title_full_unstemmed	Aerodynamic study of vehicle drag based on bluff body
title_sort	aerodynamic study of vehicle drag based on bluff body
publishDate	2009
url	http://umpir.ump.edu.my/id/eprint/5150/ http://umpir.ump.edu.my/id/eprint/5150/ http://umpir.ump.edu.my/id/eprint/5150/1/MOHAMAD_KAMARUL_BIN_SHAMSUDDIN.PDF
first_indexed	2023-09-18T22:00:22Z
last_indexed	2023-09-18T22:00:22Z
_version_	1777414357208006656

Aerodynamic study of vehicle drag based on bluff body

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