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Numerical prediction of the drag coefficient of bluff bodies in three-dimensional pipe flow | ||
Journal of Computational & Applied Research in Mechanical Engineering (JCARME) | ||
مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 12 آبان 1400 اصل مقاله (2.9 MB) | ||
نوع مقاله: Research Paper | ||
شناسه دیجیتال (DOI): 10.22061/jcarme.2021.7114.1931 | ||
نویسندگان | ||
Tamil Chandran A ![]() ![]() | ||
1Fluid Control research Institute, Kanjikode west palakkad kerala | ||
2Department of Mechanical Engineering, National Institute of Technology- Trichirapallai | ||
3Fluid Control research Institute, Palakkad, Kerala | ||
4Fluid Control Research Institute, Kanjikode west, Palakkad, Kerala, | ||
تاریخ دریافت: 23 تیر 1399، تاریخ بازنگری: 08 آبان 1400، تاریخ پذیرش: 12 آبان 1400 | ||
چکیده | ||
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 was reduction in drag coefficient with 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 brought out that for a bluff body, in a confined domain; its length has a significant effect on its drag coefficient. | ||
کلیدواژهها | ||
Pressure coefficient؛ Turbulence model؛ Computational fluid dynamics؛ Friction coefficient | ||
مراجع | ||
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[22] ANSYS Meshing User's Guide Release 15.0, (2013)
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