کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
793633 | 1466599 | 2014 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Numerical study of two-dimensional heaving airfoils in ground effect
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this study, a potential-flow-based discrete vortex method is used to investigate heaving airfoils for a wing in ground effect (WIG) over a rigid surface and over progressive water waves. Three types of oscillations are analyzed, including forced harmonic oscillations over a rigid surface, harmonic oscillations over water waves and self-excited oscillations over water waves. In addition, the roll-up of the shed wake vortices is considered. Numerical results for unsteady airfoils with the three types of oscillations over a rigid surface and over incident water waves are presented. Satisfactory agreement with numerical results reported in the literature is documented. Interestingly, the phenomenon of water bump can be observed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Fluids and Structures - Volume 48, July 2014, Pages 188–202
Journal: Journal of Fluids and Structures - Volume 48, July 2014, Pages 188–202
نویسندگان
Hui Liang, Xijun Wang, Li Zou, Zhi Zong,