کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6757057 | 1431092 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optimization of bluff bodies for aerodynamic drag and sound reduction using CFD analysis
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Drag and flow-induced sound reduction on a circular cylinder fitted with splitter plate is numerically studied. The numerical simulations of the cylinder, without and with splitter plate, have been carried out at subcritical Reynolds number (Re) of 97,300 using large eddy simulation (LES). Ffowcs Williams and Hawkings (FW-H) acoustic analogy has been used to calculate the sound field. The length of the splitter plate (H) varies from 0.5D to 3D, where D is the cylinder diameter in simulations. It is shown that both drag and sound levels decrease with increasing H initially and then increase with increasing H. However, the values of H beyond which the drag and sound levels starts increasing with further increase in H are different. This provides a multi-objective optimization problem, which has been studied in this paper using the particle swarm optimization method.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Wind Engineering and Industrial Aerodynamics - Volume 174, March 2018, Pages 133-140
Journal: Journal of Wind Engineering and Industrial Aerodynamics - Volume 174, March 2018, Pages 133-140
نویسندگان
K. Karthik, M. Vishnu, S. Vengadesan, S.K. Bhattacharyya,