Effect of corner modification on two-dimensional turbulent flow around a square cylinder with incidence
Other Title(s)
دراسة تأثير تعديل شكل الأطراف على السريان المضطرب ثنائي الأبعاد على اسطوانة ذات مقطع مربع الشكل و زاوية انحراف
Joint Authors
Source
Journal of Engineering Sciences
Issue
Vol. 44, Issue 1 (31 Jan. 2016), pp.91-102, 12 p.
Publisher
Assiut University Faculty of Engineering
Publication Date
2016-01-31
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
RNG k- model is used to analyze the aerodynamic performance of an isolated square cylinder with different wind angles, turbulence intensities and corners shapes (sharp, chamfered and rounded).
The analysis is made for unsteady two-dimensional turbulent flow.
The results are presented in the form of drag coefficient, lift coefficient, RMS lift coefficient and Strouhal number.
The present work is compared with previous experiments from published literature and the data gave a qualitative agreement.
It is found that drag coefficient, lift coefficient, RMS lift coefficient and Strouhal number are sensitive to angle of incidence, turbulence intensity and corner modification.
The average reduction in drag coefficient of square cylinder with modified corners is about 44.5 % for 6.5% turbulence intensity and 41.5 % for 14 % turbulence intensity compared with that of square cylinder with sharp corners.
Results indicated that the best fit equation of drag coefficient of sharp corners square cylinder at 45 angle of incidence and 14% turbulence intensity in terms of Reynolds number; ranging from 3.0×104 to 2.825×105, is the second order polynomial equation; Cd = 0.0536×(Re/105)2 - 0.3518×(Re/105) + 2.0128.
American Psychological Association (APA)
Muhammad, I. K.& Aissa, W. A.. 2016. Effect of corner modification on two-dimensional turbulent flow around a square cylinder with incidence. Journal of Engineering Sciences،Vol. 44, no. 1, pp.91-102.
https://search.emarefa.net/detail/BIM-819615
Modern Language Association (MLA)
Muhammad, I. K.& Aissa, W. A.. Effect of corner modification on two-dimensional turbulent flow around a square cylinder with incidence. Journal of Engineering Sciences Vol. 44, no. 1 (Jan. 2016), pp.91-102.
https://search.emarefa.net/detail/BIM-819615
American Medical Association (AMA)
Muhammad, I. K.& Aissa, W. A.. Effect of corner modification on two-dimensional turbulent flow around a square cylinder with incidence. Journal of Engineering Sciences. 2016. Vol. 44, no. 1, pp.91-102.
https://search.emarefa.net/detail/BIM-819615
Data Type
Journal Articles
Language
English
Record ID
BIM-819615