Mesh Type and Number for the CFD Simulations of Air Distribution in an Aircraft Cabin
Mesh Type and Number for the CFD Simulations of Air Distribution in an Aircraft Cabin
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DOI：
10.1080/10407790.2014.985991
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发表时间：
2015-06-03
影响因子：
1
通讯作者：
Sasanapuri, Balasubramanyam
中科院分区：
文献类型：
--
作者：
Duan, Ran;Liu, Wei;Sasanapuri, Balasubramanyam
本研究评估了三种网格类型（六面体、四面体和混合单元）以及五种网格数量（300万、600万、1200万、2400万和>3800万个单元）对头等舱气流分布模拟的准确性和计算成本的影响。本研究进行了数值误差分析，并比较了气流和温度的计算分布。研究发现，六面体网格最准确，但计算成本也最高。1200万个单元的六面体网格可为头等舱产生可接受的数值结果。不同的网格类型需要不同的网格数量才能产生准确的结果。
This investigation evaluated the impact of three mesh types (hexahedral, tetrahedral, and hybrid cells) and five grid numbers (3, 6, 12, 24, and >38 million cells) on the accuracy and computing costs of air distribution simulations in a first-class cabin. This study performed numerical error analysis and compared the computed distributions of airflow and temperature. The study found that hexahedral meshes were the most accurate, but the computing costs were also the highest. Twelve-million-cell hexahedral meshes would produce acceptable numerical results for the first-class cabin. Different mesh types would require different grid numbers in order to generate accurate results.