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Journal of Computational and Applied Research in Mechanical Engineering - JCARME، جلد ۱۲، شماره ۱، صفحات ۱۳-۲۹
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عنوان انگلیسی Numerical prediction of the drag coefficient of bluff bodies in three-dimensional pipe flow
چکیده انگلیسی مقاله Abstract Numerical analysis of drag coefficient of three-dimensional bluff bodies such as flat plates, cylinder, triangular prism, semicircular profiles located in the flow path of the pipe was performed. Bluff bodies of various lengths are analysed using a turbulence model. The effect of bluff body thickness on drag coefficient was analysed. A significant observation of the study is the reduction in drag coefficient with an increase in thickness. Effect of pressure coefficient on drag coefficient was evaluated. The study confirms that frictional coefficient has negligible effect on drag coefficient in the studied Reynolds number range. Change in drag coefficient over a wide range of Reynolds number was studied and is reported. Irrespective of geometry and length, the study indicates that there is a significant difference in drag coefficient between two dimensional and three dimensional simulation studies. It is also concluded that the length of a bluff body in a confined domain has a significant effect on its drag coefficient.
کلیدواژه‌های انگلیسی مقاله Drag coefficient, Pressure coefficient, Turbulence model, Computational Fluid Dynamics, Bluff body, Friction coefficient
نویسندگان مقاله Tamil Chandran A |
Fluid Control research Institute, Kanjikode west palakkad kerala

Suthakar T |
Department of Mechanical Engineering, National Institute of Technology- Trichirapallai

Balasubramanian KR |
Department of Mechanical Engineering, National Institute of Technology- Trichirapallai

Rammohan S |
Fluid Control research Institute, Palakkad, Kerala

Jacob Chandapillai |
Fluid Control Research Institute, Kanjikode west, Palakkad, Kerala,

نشانی اینترنتی https://jcarme.sru.ac.ir/article_1622_24eb91b9874907388e31f52953356aae.pdf
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