DRAG INVESTIGATION AROUND A CYLINDER AND SYMMETRIC AIRFOIL IN TANDEM WITH DIFFERENT GAPS AND ANGLES OF ATTACK
A Numerical simulation for the turbulent airflow around a symmetrical airfoil (NACA 0012) adjusted in tandem with circular cylinder, the airfoil were adjusted at variable angle of attack between (5-20°) with positive clockwise inclination setting the cylinder center in front of the leading-edge ce...
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Zibeline International
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Series: | Journal of Mechanical Engineering Research and Developments |
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Online Access: | https://jmerd.org.my/Paper/Vol.42,No.1(2019)/26-33.pdf |
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doaj-d16736d12b42441188109328fbcf25db2020-11-25T00:12:51ZengZibeline InternationalJournal of Mechanical Engineering Research and Developments1024-17522019-01-01421263310.26480/jmerd.01.2019.26.33DRAG INVESTIGATION AROUND A CYLINDER AND SYMMETRIC AIRFOIL IN TANDEM WITH DIFFERENT GAPS AND ANGLES OF ATTACKHumam M. Salih,Mustafa A. AbdulhussainA Numerical simulation for the turbulent airflow around a symmetrical airfoil (NACA 0012) adjusted in tandem with circular cylinder, the airfoil were adjusted at variable angle of attack between (5-20°) with positive clockwise inclination setting the cylinder center in front of the leading-edge centroid using the realizable K-ɛ turbulent model in the ANSYS FLUENT 17 package is performed. The effect of changing the adjusted tandem bodies’ configuration, gap (0.05-0.1) and the cylinder size variation on the flow pressure distribution and the airfoil drag coefficient were investigated. The simulation considered in free stream uniform velocity of (25 m/sec) at standard atmospheric pressure. The results showed that using a cylinder with diameter equal to leading edge diameter causes more pressure drop as the tandem gap decreased, noticing that this effect becomes more significant at a high angle of attack. A valuable reduction in drag coefficient of this configuration is achieved and it becomes more with a smaller cylinder diameter with respect to gap distance. https://jmerd.org.my/Paper/Vol.42,No.1(2019)/26-33.pdfsymmetric airfoiltandem cylindervariable gap |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Humam M. Salih, Mustafa A. Abdulhussain |
spellingShingle |
Humam M. Salih, Mustafa A. Abdulhussain DRAG INVESTIGATION AROUND A CYLINDER AND SYMMETRIC AIRFOIL IN TANDEM WITH DIFFERENT GAPS AND ANGLES OF ATTACK Journal of Mechanical Engineering Research and Developments symmetric airfoil tandem cylinder variable gap |
author_facet |
Humam M. Salih, Mustafa A. Abdulhussain |
author_sort |
Humam M. Salih, |
title |
DRAG INVESTIGATION AROUND A CYLINDER AND SYMMETRIC AIRFOIL IN TANDEM WITH DIFFERENT GAPS AND ANGLES OF ATTACK |
title_short |
DRAG INVESTIGATION AROUND A CYLINDER AND SYMMETRIC AIRFOIL IN TANDEM WITH DIFFERENT GAPS AND ANGLES OF ATTACK |
title_full |
DRAG INVESTIGATION AROUND A CYLINDER AND SYMMETRIC AIRFOIL IN TANDEM WITH DIFFERENT GAPS AND ANGLES OF ATTACK |
title_fullStr |
DRAG INVESTIGATION AROUND A CYLINDER AND SYMMETRIC AIRFOIL IN TANDEM WITH DIFFERENT GAPS AND ANGLES OF ATTACK |
title_full_unstemmed |
DRAG INVESTIGATION AROUND A CYLINDER AND SYMMETRIC AIRFOIL IN TANDEM WITH DIFFERENT GAPS AND ANGLES OF ATTACK |
title_sort |
drag investigation around a cylinder and symmetric airfoil in tandem with different gaps and angles of attack |
publisher |
Zibeline International |
series |
Journal of Mechanical Engineering Research and Developments |
issn |
1024-1752 |
publishDate |
2019-01-01 |
description |
A Numerical simulation for the turbulent airflow around a symmetrical airfoil (NACA 0012) adjusted in tandem
with circular cylinder, the airfoil were adjusted at variable angle of attack between (5-20°) with positive clockwise
inclination setting the cylinder center in front of the leading-edge centroid using the realizable K-ɛ turbulent model
in the ANSYS FLUENT 17 package is performed. The effect of changing the adjusted tandem bodies’ configuration,
gap (0.05-0.1) and the cylinder size variation on the flow pressure distribution and the airfoil drag coefficient were
investigated. The simulation considered in free stream uniform velocity of (25 m/sec) at standard atmospheric
pressure. The results showed that using a cylinder with diameter equal to leading edge diameter causes more
pressure drop as the tandem gap decreased, noticing that this effect becomes more significant at a high angle of
attack. A valuable reduction in drag coefficient of this configuration is achieved and it becomes more with a smaller
cylinder diameter with respect to gap distance. |
topic |
symmetric airfoil tandem cylinder variable gap |
url |
https://jmerd.org.my/Paper/Vol.42,No.1(2019)/26-33.pdf |
work_keys_str_mv |
AT humammsalih draginvestigationaroundacylinderandsymmetricairfoilintandemwithdifferentgapsandanglesofattack AT mustafaaabdulhussain draginvestigationaroundacylinderandsymmetricairfoilintandemwithdifferentgapsandanglesofattack |
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