Variational multiscale modeling of Langmuir turbulent boundary layers in shallow water using Isogeometric Analysis
Variational multiscale modeling of Langmuir turbulent boundary layers in shallow water using Isogeometric Analysis
复制标题
使用等几何分析对浅水中 Langmuir 湍流边界层进行变分多尺度建模
DOI:
10.1016/j.mechrescom.2020.103570
复制
发表时间:
2020
影响因子:
2.4
通讯作者:
Bazilevs, Yuri
中科院分区:
文献类型:
--
作者:
Zhu, Qiming;Yan, Jinhui;Tejada-Martínez, Andrés E.;Bazilevs, Yuri
We present large-eddy simulations (LES) of wind and wave-driven turbulent boundary layers in shallow water with Langmuir circulation using a variational multi-scale formulation of the Craik-Leibovich equations. The simulations are performed using Isogeometric Analysis (IGA) based on quadratic non-uniform rational basis spline (NURBS) basis functions. Wind and wave-driven turbulent boundary layers over a flat bottom surface representative of open ocean conditions in inner-shelf regions with turbulent Langmuir number L a t= 0.7 and wind stress friction Reynolds number R e τ= 395 are first simulated. The present results agree well with the reference results based on a spectral LES with higher mesh resolution [1]. Then, to investigate the effect of seabed topography on the turbulence, we simulate turbulent boundary layers over a sloped bottom surface with wind and wave forcing parallel to the shore, representative of a surf-shelf transition zone. We find that the Langmuir cell size increases as the water column shallows approaching onshore and the cell center shifts to the onshore direction. The mean velocity and turbulent kinetic energy along the shore are quantified.
登录
查看更多内容
影响因子:
2.8
作者:
Jinhui Yan;Stephen Lin;Y. Bazilevs;G. Wagner
通讯作者:
Jinhui Yan;Stephen Lin;Y. Bazilevs;G. Wagner
影响因子:
7.2
作者:
ten Eikelder, M.F.P.;Bazilevs, Y.;Akkerman, I.
通讯作者:
Akkerman, I.
影响因子:
4.1
作者:
Bazilevs, Y.;Moutsanidis, G.;Chen, J. S.
通讯作者:
Chen, J. S.
影响因子:
2.8
作者:
Songzhe Xu;N. Liu;Jinhui Yan
通讯作者:
Jinhui Yan
DOI:
10.1016/j.cma.2018.03.017
发表时间:
2018-07-01
影响因子:
7.2
作者:
Yan, J.;Yan, W.;Wagner, G. J.
通讯作者:
Wagner, G. J.