Large-eddy simulations with ClimateMachine v0.2.0: a new open-source code for atmospheric simulations on GPUs and CPUs

被引：10

作者：

Sridhar, Akshay ^{[1
]}

Tissaoui, Yassine ^{[2
]}

Marras, Simone ^{[2
]}

Shen, Zhaoyi ^{[1
]}

Kawczynski, Charles ^{[1
]}

Byrne, Simon ^{[1
]}

Pamnany, Kiran ^{[1
]}

Waruszewski, Maciej ^{[3
]}

Gibson, Thomas H. ^{[4
]}

Kozdon, Jeremy E. ^{[3
]}

Churavy, Valentin ^{[5
]}

Wilcox, Lucas C. ^{[3
]}

Giraldo, Francis X. ^{[3
]}

Schneider, Tapio ^{[1
,6
]}

机构：

[1] CALTECH, Pasadena, CA 91125 USA

[2] New Jersey Inst Technol, Newark, NJ 07102 USA

[3] Naval Postgrad Sch, Monterey, CA USA

[4] Univ Illinois, Urbana, IL USA

[5] MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[6] CALTECH, Jet Prop Lab, Pasadena, CA USA

来源：

GEOSCIENTIFIC MODEL DEVELOPMENT | 2022年 / 15卷 / 15期

基金：

美国国家科学基金会;

关键词：

DISCONTINUOUS GALERKIN METHODS; NAVIER-STOKES EQUATIONS; RUNGE-KUTTA SCHEMES; SUBGRID-SCALE MODEL; NUMERICAL ERRORS; STRATOCUMULUS; TURBULENCE; ELEMENT; DISCRETIZATION; STABILIZATION;

D O I：

10.5194/gmd-15-6259-2022

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We introduce ClimateMachine, a new opensource atmosphere modeling framework which uses the Julia language and is designed to be scalable on central processing units (CPUs) and graphics processing units (GPUs). ClimateMachine uses a common framework both for coarser-resolution global simulations and for high-resolution, limited-area large-eddy simulations (LESs). Here, we demonstrate the LES configuration of the atmosphere model in canonical benchmark cases and atmospheric flows using a total energy-conserving nodal discontinuous Galerkin (DG) discretization of the governing equations. Resolution dependence, conservation characteristics, and scaling metrics are examined in comparison with existing LES codes. They demonstrate the utility of ClimateMachine as a modeling tool for limited-area LES flow configurations.

引用

页码：6259 / 6284

页数：26

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