Numerical simulation and visualization of fiber suspension in a turbulent round jet

doi:10.1007/s10483-017-2271-6

Applied Mathematics and Mechanics (English Edition) ›› 2017, Vol. 38 ›› Issue (12): 1651-1662.doi: https://doi.org/10.1007/s10483-017-2271-6

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Numerical simulation and visualization of fiber suspension in a turbulent round jet

Wenqian LIN¹, Shouqian SUN¹, Fangyang YUAN², Suhua SHEN²

1. College of Computer Science, Zhejiang University, Hangzhou 310027, China;
2. State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China

收稿日期:2017-10-26 修回日期:2017-11-01 出版日期:2017-12-01 发布日期:2017-12-01
通讯作者: Wenqian LIN E-mail:linwq@zju.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (No. 11632016)

Numerical simulation and visualization of fiber suspension in a turbulent round jet

Wenqian LIN¹, Shouqian SUN¹, Fangyang YUAN², Suhua SHEN²

1. College of Computer Science, Zhejiang University, Hangzhou 310027, China;
2. State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China

Received:2017-10-26 Revised:2017-11-01 Online:2017-12-01 Published:2017-12-01
Contact: Wenqian LIN E-mail:linwq@zju.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (No. 11632016)

摘要/Abstract

摘要：

The turbulent properties of the fiber suspension in a turbulent round jet are numerically simulated and visualized, and some of the results are compared with the experimental data. The effects of the Reynolds number, fiber volume fraction, and aspect ratio are analyzed. The results show that the fiber injection in the flow has a delay effect on the streamwise velocity decay along the jet axis, and such an effect becomes more obvious with the increases in the fiber volume fraction and aspect ratio and the decrease in the Reynolds number. The flow with fibers shows an increase in the streamwise velocity along the radial direction, and the increase magnitude is directly proportional to the fiber volume fraction and aspect ratio and inversely proportional to the Reynolds number. The presence of fibers makes the turbulent kinetic energy and Reynolds stress increase, and the extent increases with the fiber volume fraction, Reynolds number, and fiber aspect ratio.

关键词: numerical simulation, fiber suspension, turbulence, dynamics, Birkhoff’s system, stability of motion, round jet, visualization

Abstract:

Key words: round jet, numerical simulation, fiber suspension, visualization, dynamics, Birkhoff’s system, stability of motion, turbulence

中图分类号:

76T20

Wenqian LIN, Shouqian SUN, Fangyang YUAN, Suhua SHEN. Numerical simulation and visualization of fiber suspension in a turbulent round jet[J]. Applied Mathematics and Mechanics (English Edition), 2017, 38(12): 1651-1662.

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Numerical simulation and visualization of fiber suspension in a turbulent round jet

Numerical simulation and visualization of fiber suspension in a turbulent round jet

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