Experimental investigation of the thermal fluctuations in hot and cold fluids mixing in a T-junction filled with spherical particles
Experimental investigation of the thermal fluctuations in hot and cold fluids mixing in a T-junction filled with spherical particles
复制标题
填充球形颗粒的 T 形接头内冷热流体混合热波动的实验研究
DOI：
10.1016/j.applthermaleng.2014.06.010
复制
发表时间：
2014-10
影响因子：
6.4
通讯作者：
Lu Tao
中科院分区：
文献类型：
--
作者：
Wang Yongwei;Wang Ping;Lu Tao
本文对T形管中填充不锈钢球形颗粒多孔介质的冷热流体湍流混合进行了实验研究，以确定主支管流量比和混合流体温差对热脉动的影响。分支管道中的冷水温度固定在22.5 °C，并且主管道中的冷水和热水之间的温差为7.5 °C、15 °C或20 °C。主管道中的流量与分支管道中的流量之比为2、4或8。实验结果表明，混合区的中上部瞬时温度波动最大。随着流量比的增加，温度波动较大的区域变小。发现混合区中冷热水的分布取决于流量比，流量比对归一化平均温度和均方根温度的分布有显著影响。温差对温度波动的影响有限。
The turbulent mixing of hot and cold fluids in a T-junction filled with a porous medium composed of stainless steel spherical particles has been experimentally investigated in order to determine the influence of the ratio of the flow in the main duct to that in the branch duct, and the temperature difference between the mixing fluids, on the thermal fluctuations. The temperature of the cold water in the branch duct was fixed at 22.5 °C, and the temperature differences between the cold water and the hot water in the main duct were 7.5 °C, 15 °C or 20 °C. The ratios of the flow in the main duct to that in the branch duct were 2, 4, or 8. The experimental results indicated that the largest fluctuations of instantaneous temperatures were in the middle and upper part of the mixing zone. On increasing the flow ratio, the region of strong temperature fluctuations became smaller. The distribution of hot and cold water in the mixing zone was found to depend on the flow ratio, which had a significant effect on the distribution of normalized mean and root mean square temperatures. The temperature difference had a limited effect on the temperature fluctuations.
登录
查看更多内容
影响因子：
1.9
作者：
Yong-wei Wang;T. Lu;Kuisheng Wang
通讯作者：
Yong-wei Wang;T. Lu;Kuisheng Wang
带/不带多孔介质的混合三通中温度波动的大涡模拟 (LES)
DOI：
10.1016/j.ijheatmasstransfer.2010.07.001
发表时间：
2010-10
影响因子：
5.2
作者：
Lu, T.;Jiang, P. X.;Guo, Z. J.;Zhang, Y. W.;Li, H.
通讯作者：
Li, H.
DOI：
10.1016/j.ijheatfluidflow.2010.04.006
发表时间：
2010-10
影响因子：
2.6
作者：
M. Hirota;E. Mohri;H. Asano;Hiroki Goto
通讯作者：
M. Hirota;E. Mohri;H. Asano;Hiroki Goto
影响因子：
1.7
作者：
J. Simoneau;J. Champigny;O. Gelineau
通讯作者：
J. Simoneau;J. Champigny;O. Gelineau
DOI：
10.1016/j.ijheatmasstransfer.2005.10.026
发表时间：
2006-05-01
影响因子：
5.2
作者：
Jiang, PX;Lu, XC
通讯作者：
Lu, XC