Numerical simulation of flow around different wall-mounted structures

作者：Tauqeer Muhammad Ahmad; Li Zhong; Ong Muk Chen^*

来源：Ships and Offshore Structures, 2017, 12(8): 1109-1116.

DOI：10.1080/17445302.2017.1316557

• URANS
• boundary layer flow
• subsea structures
• hydrodynamic quantities
• high Reynolds number

The flow around two-dimensional (2D) square, triangular and semi-circular subsea protection structures mounted on a horizontal plane wall with different thicknesses of incident boundary layer flow has been investigated numerically using 2D Reynolds-averaged Navier-Stokes (RANS) equations, with the standard high Reynolds number k- turbulence model. The normalised thickness of incident boundary layer, /D (where is the boundary layer thickness and D is the height of the structure), varies from 0.73 to 2.55. Reynolds number (Re) based on the free stream velocity and the height of the structure is 1x10(6). The objective of the present study is to evaluate the applicability of RANS simulations for the wall mounted structures subject to high Re incoming boundary layer flow. The predicted hydrodynamic quantities are in good agreement with the published experimental data, which shows that the present model can predict the high Re boundary layer flow around the wall-mounted structures reasonably well.

• 出版日期2017