Lagrangian and Eulerian algorithms for water droplets in in-flight ice accretion

被引：12
|
作者：
Bellosta, Tommaso [1 ]
Baldan, Giacomo [1 ]
Sirianni, Giuseppe [1 ]
Guardone, Alberto [1 ]
机构：
[1] Politecn Milan, Dept Aerosp Sci & Technol, Via La Masa 34, I-20156 Milan, Italy
来源：
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS | 2023年 / 429卷
基金：
欧盟地平线“2020”;
关键词：
Particle tracking; Ice accretion; Collection efficiency; DYNAMICS; SCHEME; MODEL;
D O I：
10.1016/j.cam.2023.115230
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
A particle tracking framework for the computation of the collection efficiency for in-flight ice accretion is presented. Algorithms for the computation of the collection efficiency are presented for both Lagrangian and Eulerian descriptions of the droplets equations. Strengths and weaknesses of each method are analyzed and possible solutions are described and implemented. For the Lagrangian solver, a method for automatic resolution adaptation is introduced, and a strategy for exploiting parallelism is described. In the Eulerian frame a scheme is presented for the solution of the equations on unstruc-tured 3D grids using a relaxation approach. An hybrid Lagrangian Eulerian approach for the computation of the collection efficiency is also introduced which is relevant for Super-cooled Large Droplet condition. All presented algorithms are thoroughly verified, and a comprehensive validation is performed. (c) 2023 Elsevier B.V. All rights reserved.
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页数：19
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