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EVALUATING TURBULENCE MODELS FOR 3-D FLOWS IN ENCLOSURE BYTOPOLOGY

机译:封闭式拓扑学中3D流动的湍流模型评估

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摘要

Computational Fluid Dynamics (CFD) has evolvedrnfrom an academic tool to an important commercialrndesign tool over the past decades. In the presentrnpaper the accuracy of two equation turbulence modelsrnfor 3-D internal air flows is investigated in terms ofrnmean quantities and topological aspects. Results forrnpseudo 2-D and full 3-D simulations using the k-ernmodel and the Baseline (BSL) k-w model of Menter,rnrespectively, are compared with LDA measurementsrn(Nielsen, 1990) and PIV measurements (Pedersen &rnMeyer, 2002). In order to explain similarities andrndifferences between simulation and experiments, arntopological apparatus is outlined. The mainrnconclusion of this work is that the BSL k-w model ofrnMenter is superior to the k-e model when flowrnstructures are to be predicted.
机译:在过去的几十年中,计算流体动力学(CFD)已从学术工具发展成为重要的商业设计工具。在本文中,从平均数量和拓扑方面研究了两个方程式湍流模型对于3D内部气流的准确性。分别使用Menter的k-ern模型和Baseline(BSL)k-w模型进行伪2-D和完整3-D模拟的结果与LDA测量(Nielsen,1990)和PIV测量(Pedersen&rnMeyer,2002)进行了比较。为了解释模拟与实验之间的相似性和差异,概述了人类学设备。这项工作的主要结论是,当要预测流动结构时,rnMenter的BSL k-w模型优于k-e模型。

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