A semi-implicit semi-Lagrangian scheme using the height coordinate for a nonhydrostatic and fully elastic model of atmospheric flows

被引:60
作者
Bonaventura, L
机构
[1] Univ Trent, Dipartimento Ingn Civile & Ambientale, Lab Matemat Applicata, I-38050 Mesiano di Povo, TN, Italy
[2] ITC, CIRM, I-38050 Povo, TN, Italy
关键词
semi-implicit; semi-Lagrangian; mesoscale models; stratified flows over complex orography; height coordinate;
D O I
10.1006/jcph.1999.6414
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
A semi-implicit, semi-lagrangian algorithm suitable for the simulation of the dry, adiabatic, nonhydrostatic atmospheric dynamics is introduced and analysed. Height is used as vertical coordinate, without the customary terrain following normalization, thus resulting in a stable, robust, and efficient numerical scheme which allows for applications to mesoscale flows over complex orography. Results of simulations in typical lee waves test cases are presented, which show good agreement with the corresponding analytical solutions. (C) 2000 Academic Press.
引用
收藏
页码:186 / 213
页数:28
相关论文
共 62 条
[1]  
Adcroft A, 1997, MON WEATHER REV, V125, P2293, DOI 10.1175/1520-0493(1997)125<2293:ROTBSC>2.0.CO
[2]  
2
[3]  
Bartello P, 1996, MON WEATHER REV, V124, P2883, DOI 10.1175/1520-0493(1996)124<2883:TCEOSL>2.0.CO
[4]  
2
[5]  
BONAVENTURA L, 1997, P 10 INT C NUM METH, P1
[6]  
CARPENTER RL, 1990, MON WEATHER REV, V118, P586, DOI 10.1175/1520-0493(1990)118<0586:AOTPPM>2.0.CO
[7]  
2
[8]  
Casulli V, 1999, INT J NUMER METH FL, V30, P425, DOI 10.1002/(SICI)1097-0363(19990630)30:4<425::AID-FLD847>3.0.CO
[9]  
2-D
[10]   SEMI-IMPLICIT FINITE-DIFFERENCE METHODS FOR THE 2-DIMENSIONAL SHALLOW-WATER EQUATIONS [J].
CASULLI, V .
JOURNAL OF COMPUTATIONAL PHYSICS, 1990, 86 (01) :56-74