Free-surface channel flow around a square cylinder

被引:0
|
作者
Eames, Ian [1 ]
Robinson, Tristan [2 ]
机构
[1] UCL, Torrington Pl, London WC1E 7JE, England
[2] UCL, Dept Civil Environm & Geomat Engn, Gower St, London WC1E 6BT, England
关键词
computational methods; channel flow; wave-structure interactions; FORCE;
D O I
10.1017/jfm.2023.964
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
The free-surface channel flow around a square cylinder is analysed, over a wide range of blocking ratios, using three-dimensional simulations. The state of the flow is characterised in terms of the Froude number upstream and downstream of the square cylinder. The simulations confirm the presence of the subcritical and choked states, and provide new insight into the supercritical state and band-gap through an analysis of how the momentum flux varies with Froude number along the channel. The influence of the blocking ratio on the flow state and drag force is analysed and shows the significant rise of drag in the choked regime.
引用
下载
收藏
页数:13
相关论文
共 50 条
  • [21] FREE-SURFACE FLOW OVER AN OBSTRUCTION IN A CHANNEL
    VANDENBROECK, JM
    PHYSICS OF FLUIDS, 1987, 30 (08) : 2315 - 2317
  • [22] FREE-SURFACE SLOPES AT CONTROLS IN CHANNEL FLOW
    IYENGAR, BSR
    JOURNAL OF THE HYDRAULICS DIVISION-ASCE, 1975, 101 (07): : 1028 - 1029
  • [23] FREE-SURFACE SLOPES AT CONTROLS IN CHANNEL FLOW
    WILKINSON, DL
    JOURNAL OF THE HYDRAULICS DIVISION-ASCE, 1974, 100 (NHY8): : 1107 - 1117
  • [24] Shallow free-surface Stokes flow around a corner
    Hinton, Edward M.
    Hogg, Andrew J.
    Huppert, Herbert E.
    PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 2020, 378 (2174):
  • [25] Large-eddy simulation of free-surface turbulent channel flow over square bars
    Jalalabadi, Razieh
    Stoesser, Thorsten
    INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 2023, 103
  • [26] Reynolds and dispersive shear stress in free-surface turbulent channel flow over square bars
    Jalalabadi, Razieh
    Stoesser, Thorsten
    PHYSICAL REVIEW E, 2022, 105 (03)
  • [27] Boundary-layer flow around a submerged circular cylinder induced by free-surface travelling waves
    Yan, B
    Riley, N
    JOURNAL OF FLUID MECHANICS, 1996, 316 : 241 - 257
  • [28] On the stability of viscous free-surface flow supported by a rotating cylinder
    Peterson, RC
    Jimack, PK
    Kelmanson, MA
    PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 2001, 457 (2010): : 1427 - 1445
  • [29] Free-surface flow in horizontally rotating cylinder: experiment and simulation
    Bohacek, J.
    Kharicha, A.
    Ludwig, A.
    Wu, M.
    Paar, A.
    Brandner, M.
    Elizondo, L.
    Trickl, T.
    International Symposium on Liquid Metal Processing & Casting 2015 (LMPC2015), 2016, 143
  • [30] Motion of a cylinder adjacent to a free-surface: flow patterns and loading
    Q. Zhu
    J. -C. Lin
    M. F. Unal
    D. Rockwell
    Experiments in Fluids, 2000, 28 : 559 - 575