Optimisation based bathymetry approximation through constrained unstructured mesh adaptivity

被引：32
作者：
Gorman, GJ
Piggott, MD
Pain, CC
de Oliveira, CRE
Umpleby, AP
Goddard, AJH
机构：
[1] Univ London Imperial Coll Sci Technol & Med, Dept Earth Sci & Engn, Appl Modelling & Computat Grp, London SW7 2BP, England
[2] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Nucl & Radiol Engn Program, Atlanta, GA 30332 USA
来源：
OCEAN MODELLING | 2006年 / 12卷 / 3-4期
基金：
英国自然环境研究理事会;
关键词：
D O I：
10.1016/j.ocemod.2005.09.004
中图分类号：
P4 [大气科学（气象学）];
学科分类号：
0706 ; 070601 ;
摘要：
A method for generating high quality unstructured computational meshes for applications in geophysical, and specifically ocean, modelling is presented. The method generates a three-dimensional mesh which is optimised to approximate the bathymetry to a user-specified accuracy, which itself may be defined as a function of space and bathymetry. To do this a mesh optimisation method is employed which allows the formation of highly anisotropic elements aligned with bathymetric variations of high curvature. In addition a coastal recovery algorithm, based upon feature decimation and edge recovery, is described. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：436 / 452
页数：17
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共 50 条
[1]   How slippery are piecewise-constant coastlines in numerical ocean models? [J].
Adcroft, A ;
Marshall, D .
TELLUS SERIES A-DYNAMIC METEOROLOGY AND OCEANOGRAPHY, 1998, 50 (01) :95-108
[2]   Optimal point placement for mesh smoothing [J].
Amenta, N ;
Bern, M ;
Eppstein, D .
JOURNAL OF ALGORITHMS-COGNITION INFORMATICS AND LOGIC, 1999, 30 (02) :302-322
[3]  
[Anonymous], 2004, P 13 INT MESH ROUNDT
[4]  
BECKMANN A, 1994, J PHYS OCEANOGR, V24, P326, DOI 10.1175/1520-0485(1994)024<0326:EOIHRI>2.0.CO
[5]  
2
[6]  
Buscaglia GC, 1997, INT J NUMER METH ENG, V40, P4119, DOI 10.1002/(SICI)1097-0207(19971130)40:22<4119::AID-NME254>3.0.CO
[7]  
2-R
[8]   Modeling the Gulf Stream system: How far from reality? [J].
Chao, Y ;
Gangopadhyay, A ;
Bryan, FO ;
Holland, WR .
GEOPHYSICAL RESEARCH LETTERS, 1996, 23 (22) :3155-3158
[9]  
DENGG J, 1993, J PHYS OCEANOGR, V23, P2182, DOI 10.1175/1520-0485(1993)023<2182:TPOGSS>2.0.CO
[10]  
2
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