Simulation of Gas Jet Impingement Cooling in Continuous Heat Treatment Lines with the ANSYS GEKO Turbulence Model*

IF 0.3 Q4 THERMODYNAMICS
J. E. Menzler, M. Klusmann, Markus Wulfmeier, D. Büschgens, H. Pfeifer
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引用次数: 0

Abstract

Abstract Gas impingement jets are widely applied in industrial cooling processes. In continuous heat treatment lines of steel, aluminium and copper strips, impingement jet nozzle systems are utilised to achieve rapid cooling or heating. The heat transfer depends on the flow but also on the geometric parameters such as nozzle to strip distance and the nozzle shape. The key challenge while designing cooling sections is to determine the performance of those nozzle systems or their Nusselt number respectively. Jet cooling sections are challenging to model with computational fluid dynamics or in an experimental set up. Yet, RANS-turbulence models are a cost-effective way to predict Nusselt numbers. In this work the capability of the ANSYS generalized k-omega (GEKO) two-equation turbulence model to determine the local and integral Nusselt number of an impinging air jet is evaluated. The results are contrasted to experimental investigations.
基于ANSYS GEKO湍流模型的连续热处理管道气体射流冲击冷却模拟*
摘要气体冲击射流在工业冷却过程中有着广泛的应用。在钢、铝和铜带的连续热处理生产线中,采用撞击喷射喷嘴系统来实现快速冷却或加热。传热不仅取决于流量,还取决于喷嘴与带材的距离和喷嘴形状等几何参数。设计冷却段的关键挑战是确定这些喷嘴系统的性能或它们各自的努塞尔数。射流冷却段的计算流体力学模型或实验设置具有挑战性。然而,trans -湍流模型是预测努塞尔数的一种经济有效的方法。本文评价了ANSYS广义k-omega (GEKO)两方程湍流模型确定撞击气流的局部和积分努塞尔数的能力。结果与实验结果进行了对比。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
1.50
自引率
33.30%
发文量
43
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