基于改进双流体湍流模型的旋流模拟

Z. Malikov, R. A. Fayziev, D. Navruzov, Bekzod Malikov
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引用次数: 0

摘要

本文提出了先前已知的双流体模型的修改版本。为了验证改进的双流体模型,进行了一项研究,旋涡射流从绕其轴旋转的长管道进入淹没空间。由于湍流各向异性的存在,这一问题很难用各种湍流模型来解决。因此,许多针对这类问题的RANS模型并没有给出令人满意的结果。本文给出了新模型对旋转管内流动和自由射流的数值计算结果。所得结果与已知的实验数据进行了比较,并与RSM模型的结果进行了比较。比较表明,该模型具有较高的精度。数值实现表明,该方法具有良好的稳定性和收敛性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
SIMULATION OF SWIRLING FLOWS BASED ON MODIFIED TWO-FLUID TURBULENCE MODEL
This article proposes a modified version of the previously known two-fluid model. To verify the modified two-fluid model, a study was conducted of a swirling jet emerging into a flooded space from a long pipe rotating around its axis. This task is difficult to solve using various turbulence models because turbulence anisotropy arises in it. Therefore, many RANS models for such problems do not give satisfactory results. The article presents the numerical results of the new model both for the flow inside a rotating pipe and for a free jet. The results obtained are compared with known experimental data, and with the results of the RSM model. Comparisons show that the proposed new model has high accuracy. In addition, the numerical implementation showed that it has good stability and convergence.
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