电邮这篇文章 On a Flow Around a Cylinder Over Uneven Bottom
- 作者: Baikov N.D.1, Petrov A.G.1
-
隶属关系:
- Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences
- 期: 卷 63, 编号 3 (2023)
- 页面: 424-435
- 栏目: Mathematical physics
- URL: https://journal-vniispk.ru/0044-4669/article/view/134304
- DOI: https://doi.org/10.31857/S004446692303002X
- EDN: https://elibrary.ru/DZOWGF
- ID: 134304
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详细
A plane problem of a potential fluid flow around a cylinder of arbitrary section over an uneven bottom with a flow velocity at infinity directed parallel to the bottom is considered. The circulation of the velocity field is determined from Goldshtik’s postulate: the maximum velocity on the contour of the cylinder must be minimal. Two numerical schemes of the boundary element method are developed for solving this problem. The first scheme determines the flow on a bounded but arbitrarily defined bottom surface. The second scheme determines the flow around a contour in a half plane. The comparison of calculations using these numerical schemes with the exact solutions shows the convergence of the method as the grid elements increase. The pressure on the cylinder surface and on the bottom obtained using numerical calculations by the
–
model is compared with experimental data. Streamlines are also compared taking into account the separation region.
作者简介
N. Baikov
Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences
Email: baikov_nd@rambler.ru
119526, Moscow, Russia
A. Petrov
Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences
编辑信件的主要联系方式.
Email: petrovipmech@gmail.com
119526, Moscow, Russia
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