Experimental investigation of flow structure and energy separation of Ranque–Hilsch vortex tube with LDV measurement
Experimental investigation of flow structure and energy separation of Ranque–Hilsch vortex tube with LDV measurement
复制标题
基于LDV测量的Ranque-Hilsch涡流管流动结构和能量分离实验研究
DOI：
10.1016/j.ijrefrig.2019.02.004
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发表时间：
2019-05
影响因子：
3.9
通讯作者：
Tinghuang Fu
中科院分区：
文献类型：
--
作者：
Xiangji Guo;Bo Zhang;Ling Li;Bo Liu;Tinghuang Fu
本研究设计了直径为30 mm的透明涡管来显示主涡管，并采用二维激光多普勒测速仪（LDV）对子午面上的平均流场进行了测量。得到了轴向和径向速度的分布，特别是反向流动边界的分布，有助于理解大尺度涡旋结构的特征。研究了不同冷质量分数（0.1 - 0.9）、管长（360 mm、600 mm和900 mm）和进口压力（0.1 bar和0.2 bar）下的不同工况，揭示了逆流边界对能量分离性能的影响。LDV计算结果表明，平均轴向速度分布具有良好的轴对称，增加冷质量分数会导致逆流边界的扩大，这与之前数值计算的结果一致。结果表明，管段过短或过长都会导致能量分离性能的下降，并对所提出的管段优化准则进行了验证。
In this study, transparent vortex tubes of diameter 30 mm were designed for the main tube visualisation and a 2D laser Doppler velocimetry (LDV) measurement was adopted to investigate the mean flow field on the meridian plane. The distributions of the axial and radial velocities, and particularly the reverse flow boundary, were obtained for understanding the characteristics of large-scale vortex structures. Various operation conditions with different cold mass fractions (0.1–0.9), tube lengths (360 mm, 600 mm, and 900 mm), and inlet pressures (0.1 bar and 0.2 bar) were studied to reveal how the reverse flow boundary affects the energy separation performance. The LDV results show that the mean axial velocity distribution present good axial symmetry, and increasing the cold mass fraction results in an expansion of the reverse flow boundary as reported for previous numerical calculations. A deterioration in the energy separation performance due to an excessively short or long tube was revealed, and the proposed tube optimization criteria were proven.
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影响因子：
2.1
作者：
C. Gao;K. J. Bosschaart;J. J. Zeegers-J.;De Waele
通讯作者：
C. Gao;K. J. Bosschaart;J. J. Zeegers-J.;De Waele
DOI：
10.1016/j.ijrefrig.2014.09.021
发表时间：
2015
期刊：
International Journal of Refrigeration-revue Internationale Du Froid
影响因子：
--
作者：
A. D. Gutak
通讯作者：
A. D. Gutak
影响因子：
0.8
作者：
M. A. Zhidkov;V. Devisilov;D. Zhidkov;O. Kirikova;V. Spiridonov
通讯作者：
M. A. Zhidkov;V. Devisilov;D. Zhidkov;O. Kirikova;V. Spiridonov
影响因子：
9
作者：
R. Manimaran
通讯作者：
R. Manimaran
DOI：
10.1016/j.ijheatmasstransfer.2004.12.046
发表时间：
2005-05-01
影响因子：
5.2
作者：
Behera, U;Paul, PJ;Jacob, S
通讯作者：
Jacob, S