应用有限元和CFD的数值耦合环境的实验验证

IF 1.3 Q2 ENGINEERING, AEROSPACE
Christopher Hartmann, Julia Schweikert, F. Cottier, Ute Israel, Jochen Gier, Jens von Wolfersdorf
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引用次数: 0

摘要

将平板和V形肋板上瞬态传热特性的实验结果与应用FEM和CFD的耦合环境中的数值结果进行了比较。为了模拟典型飞行任务中发动机部件冷却过程中的瞬态效应,通道入口处的温度和速度随时间变化。使用红外热成像法测量板处的瞬态温度分布。考虑了五种不同的板材(有机玻璃、PEEK、石英、铝和钢),以研究热传导对固体和流体之间的传热的影响,这取决于Biot数。实验结果代表了应用CalculiX(FEM)和ANSYS CFX(CFD)的基于Python的耦合环境的参考数据库。此外,还将结果与CFD模拟完全瞬态共轭换热的数值结果进行了比较。对于平板和具有V形肋的板,在不同的Biot数下使用不同的耦合尺寸,在数值结果和实验结果之间取得了良好的一致性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental Validation of a Numerical Coupling Environment Applying FEM and CFD
Experimental results for the transient heat transfer characteristics over a flat plate and over a plate with V-shaped ribs were compared to numerical results from a coupling environment applying FEM and CFD. In order to simulate transient effects in the cooling process of engine components during typical flight missions, the temperature and the velocity at the inlet of the channel were varied over time. The transient temperature distribution at the plate was measured using infrared thermography. Five different plate materials (perspex, PEEK, quartz, aluminum, and steel) were considered to investigate the influence of thermal conduction on the heat transfer between solid and fluid depending on the Biot number. The experimental results represent a reference database for a Python-based coupling environment applying CalculiX (FEM) and ANSYS CFX (CFD). The results were additionally compared to numerical results simulating the complete transient conjugated heat transfer with CFD. A good agreement between the numerical and the experimental results was achieved using different coupling sizes at different Biot numbers for the flat plate and the plate with V-shaped ribs.
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来源期刊
CiteScore
2.30
自引率
21.40%
发文量
29
审稿时长
11 weeks
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