A non-hydrostatic non-Boussinesq algorithm for free-surface ocean modelling

被引：21
|
作者：
Auclair, F. [1 ]
Bordois, L. [1 ,2 ]
Dossmann, Y. [1 ,2 ]
Duhaut, T. [1 ]
Paci, A. [1 ]
Ulses, C. [1 ]
Nguyen, C. [1 ]
机构：
[1] Univ Toulouse, Lab Aerol, CNRS, UPS, Toulouse, France
[2] Meteo France, CNRS, SPEA, CNRM GAME,GMEI, Toulouse, France
来源：
OCEAN MODELLING | 2018年 / 132卷
关键词：
TIDAL FLOW; CONVECTION; WAVES;
D O I：
10.1016/j.ocemod.2018.07.011
中图分类号：
P4 [大气科学（气象学）];
学科分类号：
0706 ; 070601 ;
摘要：
A three-mode time-split algorithm is proposed to simulate non-hydrostatic ocean processes in a natural way: fast pressure adjustments via acoustic waves are explicitly represented. The full set of compressible Navier-Stokes equations is integrated for a free-surface ocean with three time-steps respectively associated to the internal, external and compressible (non Boussinesq) modes. The resulting three-mode algorithm can be implemented either in a fully compressible configuration or in a "pseudo-compressible" configuration by artificially lowering acoustic-wave velocities to reduce computational costs. The present description of the three-mode algorithm focuses in the first place on the simulation of non-hydrostatic processes in free-surface ocean models. Several test simulations related to linear and non-linear acoustic, surface and internal gravity waves are studied in details with the proposed three-mode algorithm.
引用
收藏
页码：12 / 29
页数：18
相关论文
共 50 条
  • [1] A non-hydrostatic algorithm for free-surface ocean modelling
    Auclair, Francis
    Estournel, Claude
    Floor, Jochem W.
    Herrmann, Marine
    Nguyen, Cyril
    Marsaleix, Patrick
    [J]. OCEAN MODELLING, 2011, 36 (1-2) : 49 - 70
  • [2] An implicit numerical algorithm for solving non-hydrostatic free-surface flow problems
    Namin, MM
    Lin, B
    Falconer, RA
    [J]. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, 2001, 35 (03) : 341 - 356
  • [3] A wetting and drying algorithm with a combined pressure/free-surface formulation for non-hydrostatic models
    Funke, S. W.
    Pain, C. C.
    Kramer, S. C.
    Piggott, M. D.
    [J]. ADVANCES IN WATER RESOURCES, 2011, 34 (11) : 1483 - 1495
  • [4] Numerical Modelling of Interactions Between Non-Hydrostatic Free-Surface Flows and a Non-Moving Floating Body
    Rijnsdorp, Dirk Pieter
    Zijlema, Marcel
    [J]. PROCEEDINGS OF THE 35TH IAHR WORLD CONGRESS, VOLS III AND IV, 2013,
  • [5] An efficient boundary fitted non-hydrostatic model for free-surface flows
    Ahmadi, A.
    Badiei, P.
    Namin, M. M.
    [J]. NEW TRENDS IN FLUID MECHANICS RESEARCH: PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON FLUID MECHANICS, 2007, : 356 - 360
  • [6] A non-hydrostatic numerical model for calculating free-surface stratified flows
    Kanarska, Yuliya
    Maderich, Vladimir
    [J]. OCEAN DYNAMICS, 2003, 53 (03) : 176 - 185
  • [7] AN EFFICIENT BOUNDARY FITTED NON-HYDROSTATIC MODEL FOR FREE-SURFACE FLOWS
    Ahmadi, A.
    Badiei, P.
    Namin, M. M.
    [J]. JOURNAL OF ENGINEERING SCIENCE AND TECHNOLOGY, 2007, 2 (03) : 238 - 246
  • [8] A non-hydrostatic numerical model for calculating free-surface stratified flows
    Y. Kanarska
    V. Maderich
    [J]. Ocean Dynamics, 2003, 53 : 176 - 185
  • [9] A fully non-hydrostatic three-dimensional model with an implicit algorithm for free-surface flows
    Wu, CH
    Yuan, HL
    [J]. ESTUARINE AND COASTAL MODELING, PROCEEDINGS, 2004, : 591 - 607
  • [10] Finite element modelling of free-surface flows with non-hydrostatic pressure and k-ε turbulence model
    Leupi, C
    Altinakar, MS
    [J]. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, 2005, 49 (02) : 149 - 170
12345