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首页> 外文期刊>American Journal of Computational and Applied Mathematics >Turbulent Flow in the Vicinity of Solid Walls in an Orifice and Double Elbow
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Turbulent Flow in the Vicinity of Solid Walls in an Orifice and Double Elbow

机译：孔口和双弯头中实心壁附近的湍流

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摘要

This paper describes the turbulent flow of water through the orifice and double elbow using the Reynolds stress turbulence model. The characteristics of turbulent flow near the solid wall have been examined. The turbulent parameters such as velocity, kinetic energy and Reynolds stresses are analyzed in terms of the non-dimensional wall distance parameter y~(+) values (0 < y~(+) < 650) for three different Reynolds numbers (Re ) at the critical location of the corresponding components. These simulated results are validated with the literature results for each component, and are found to be in good agreement. In general, for high Re number, inertia forces dominated over viscous forces. It is observed from this analysis is that these inertial forces and other parameters attained their peak values in the log law layer (30 < y~(+) < 500) or in the outer layer (y~(+ )> 50), whereas the minimum values of these parameters are observed in the viscous sub layer (y~(+ )< 5) or in the viscous wall region (y~(+) < 50).
机译：本文使用雷诺应力湍流模型描述了流经孔和双弯头的湍流。已经检查了固体壁附近的湍流特性。根据三个不同雷诺数（）的无量纲壁距参数y〜（+）值（0 50）达到了峰值，而这些参数的最小值在粘性子层（y〜（+）<5）或粘性壁区域（y〜（+）<50）中观察到。

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