浆氢在水平圆管内流动的数值模拟

doi:10.3969/j.issn.0438-1157.2014.z2.006

化工学报 ›› 2014, Vol. 65 ›› Issue (z2): 38-44.DOI: 10.3969/j.issn.0438-1157.2014.z2.006

浆氢在水平圆管内流动的数值模拟

张鹏, 石新杰

上海交通大学制冷与低温研究所, 上海 200240

收稿日期:2014-08-20 修回日期:2014-08-29 出版日期:2014-12-30 发布日期:2014-12-30
通讯作者: 张鹏
基金资助:
航天低温推进剂技术国家重点实验室开放基金项目(SKLTSCP1315)。

Numerical investigation of slush hydrogen flow in horizontal pipes

ZHANG Peng, SHI Xinjie

Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai 200240, China

Received:2014-08-20 Revised:2014-08-29 Online:2014-12-30 Published:2014-12-30
Supported by:
supported by the Open Foundation of State Key Laboratory of Space Cryogenic Propellant Technology (SKLTSCP1315).

摘要/Abstract

摘要：

利用三维欧拉-欧拉模型对浆氢在水平圆管中的流动特性进行了数值模拟研究,通过数值计算确定了合适的颗粒-颗粒碰撞恢复系数、颗粒-壁面碰撞系数等相关参数,并将数值模拟的压降结果与文献中实验数据进行了对比。利用两相模型对固相体积分数分别为10%、20%、30%,流速分别为1 m·s^-1、2 m·s^-1、3 m·s^-1,管道直径分别为10 mm、16.6 mm、23 mm下的浆氢流动特性进行了模拟,得到了浆氢的固相体积分数在管道截面上的分布,发现在较低流速、较低固相平均体积分数和较大管道直径的情况下固相颗粒的体积分数分布不均匀性更大。

关键词: 浆氢, 两相流, 数值模拟, 欧拉模型, 体积分数分布

Abstract:

The flow characteristics of slush hydrogen in horizontal pipes are investigated numerically using 3D Euler-Euler model. The pressure drops obtained by the numerical calculation are compared with experimental results from the open literature, in order to validate the numerical method. In addition, the models with proper parameters are adopted to simulate the flow of slush hydrogen with different volume fractions (10%, 20%, 30%) and flow rates (1.0 m·s^-1, 2.0 m·s^-1, 3.0 m·s^-1) in horizontal pipes with different diameters (10 mm, 16.6 mm, 23 mm). The volume fraction distributions of slush hydrogen in the pipe are obtained. It is found that the solid volume fraction distribution of slush hydrogen is more heterogeneous at lower flow rate, lower average volume fraction and larger pipe diameter.

Key words: slush hydrogen, two phase flow, numerical investigation, Euler model, volume fraction distribution

中图分类号:

TQ028.5

张鹏, 石新杰. 浆氢在水平圆管内流动的数值模拟[J]. 化工学报, 2014, 65(z2): 38-44.

ZHANG Peng, SHI Xinjie. Numerical investigation of slush hydrogen flow in horizontal pipes[J]. CIESC Journal, 2014, 65(z2): 38-44.

参考文献 18

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浆氢在水平圆管内流动的数值模拟

Numerical investigation of slush hydrogen flow in horizontal pipes

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