Normal view MARC view ISBD view

Study of vortex shedding around bluff body using air flow test rig / Rafiuddin Bin Azman

By:

Rafiuddin Azman

Material type: Text

TextPublication details: Kuantan, Pahang : UMP, 2008Description: 51 p. : ill. (some col.) ; 30 cm. + 1 computer discISBN:

THE0007379(Local)

Other title:

Study of vortex shedding around bluff body using air flow test rig /h[electronic resource]

Subject(s):

Vortex-motion

Dissertation note: Project paper (Bachelor of Mechanical Engineering) -- Universiti Malaysia Pahang - 2008 Abstract: The Ahmed body represents a simplified car of 3D geometry model that can be used to study the flow characteristic in the wake of vehicles. The main objective of this study is to study the flow pattern around the model by the experimental and simulation method. The model that proposed for present work is 30o slant angle. The experiment is conducted by using low speed wind tunnel and varied the air velocity, 0.6m/s and 6.0m/s. The time averaged results of smoke flow pattern at the curvature part is discussed. Major finding shows that the formation of small vortex is decay in time and distance as the flow travelling further. Furthermore, although overall of the smoke flow pattern results showed good agreement with previously published work, the flows structure behind the model was found to be somewhat inconsistency in a separated region over the slant and the recirculation flows behind the model. The observation indicates that the formation of small vortices over the slant is not clear apparent instead of the flows is mixing with recirculation vortices. In addition, the flow pattern of the recirculation vortices behind the model showed very similar with the previous works, indicating two vortices is formed, emphasizing in findings.

Tags from this library: No tags from this library for this title. Log in to add tags.

Average rating: 0.0 (0 votes)

Holdings ( 2 )
Title notes ( 2 )

Holdings
Item type	Current library	Call number	Copy number	Status	Date due	Barcode
Final Year Report	UMPLIB PEKAN	TL574.V6 R34 2008 rs Bc. (Browse shelf(Opens below))	1	Not for loan		0000038304
Final Year Report	UMPLIB PEKAN	CD 3505 \| TL574.V6 R34 2008 rs Bc. (Browse shelf(Opens below))	1	Not for loan		0000038305

Project paper (Bachelor of Mechanical Engineering) -- Universiti Malaysia Pahang - 2008

The Ahmed body represents a simplified car of 3D geometry model that can be used to study the flow characteristic in the wake of vehicles. The main objective of this study is to study the flow pattern around the model by the experimental and simulation method. The model that proposed for present work is 30o slant angle. The experiment is conducted by using low speed wind tunnel and varied the air velocity, 0.6m/s and 6.0m/s. The time averaged results of smoke flow pattern at the curvature part is discussed. Major finding shows that the formation of small vortex is decay in time and distance as the flow travelling further. Furthermore, although overall of the smoke flow pattern results showed good agreement with previously published work, the flows structure behind the model was found to be somewhat inconsistency in a separated region over the slant and the recirculation flows behind the model. The observation indicates that the formation of small vortices over the slant is not clear apparent instead of the flows is mixing with recirculation vortices. In addition, the flow pattern of the recirculation vortices behind the model showed very similar with the previous works, indicating two vortices is formed, emphasizing in findings.