FLUENT对云凝结核计数器云室内气流特征的模拟研究

运用计算流体力学模型ANSYS FLUENT,对DMT公司的恒流热梯度云凝结核计数器（CCNC）云室内的流场、温度场以及水汽场进行模拟。依据外场观测和室内实验中的常用进气流速0.0164,0.0185,0.0205,0.0226和0.0246 m/s以及云室温差2,8和17 K,对比不同进气流速和云室温差对云室内流场的影响。结果显示,云室内的速度场和温度场均受进气流速和云室温差的影响。当云室温差为8 K,进气流速为0.0205m/s时,模拟出的云室中心线的过饱和度约为0.27%,较好地模拟出云室内的水汽过饱和状态。...

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Bibliographic Details
Published in北京大学学报（自然科学版） Vol. 53; no. 5; pp. 817 - 824
Main Author 于仁杰 赵春生 薛惠文 马楠 陶江川 付仕佐 张健鹏 旷烨 刘宏剑 边宇轩
Format Journal Article
LanguageChinese
Published 北京大学物理学院大气与海洋科学系,北京,100871%北京大学工学院湍流与复杂系统国家重点实验室,北京,100871 2017
Subjects
ANSYS
FLUENT
云凝结核计数器（CCNC）
水汽场
温度场
速度场
水汽场
velocity field
温度场
ANSYSFLUENT
CCNC
ANSYS FLUENT
速度场
云凝结核计数器(CCNC)
temperature field
water vapor field
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ISSN0479-8023
DOI10.13209/j.0479-8023.2017.015

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Summary:运用计算流体力学模型ANSYS FLUENT,对DMT公司的恒流热梯度云凝结核计数器（CCNC）云室内的流场、温度场以及水汽场进行模拟。依据外场观测和室内实验中的常用进气流速0.0164,0.0185,0.0205,0.0226和0.0246 m/s以及云室温差2,8和17 K,对比不同进气流速和云室温差对云室内流场的影响。结果显示,云室内的速度场和温度场均受进气流速和云室温差的影响。当云室温差为8 K,进气流速为0.0205m/s时,模拟出的云室中心线的过饱和度约为0.27%,较好地模拟出云室内的水汽过饱和状态。
Bibliography:The velocity, temperature and humidity in the chamber of the Continuous Flow Streamwise ThermalGradient CCN Counter manufactured by DMT were successfully simulated using the computational fluid dynamics software ANSYS FLUENT. With velocity of 0.0164, 0.0185, 0.0205, 0.0226, 0.0246 m/s and temperature settings of ΔT 2, 8 and 17 K, the influence of velocity and temperature on the flow were tested. Results show that, velocity and temperature setting of CCNC influenced both velocity field and temperature field. When ΔT=8 K, v=0.0205 m/s, the supersaturaiton on the centerline was about 0.27%. Supersaturation in the CCNC chamber was simulated successfully.
YU Renjie1, ZHAO Chunsheng1, XUE Huiwen1, MA Nan1, TAO Jiangchuan1, FU Shizuo1, ZHANG Jianpeng2, KUANG Ye1, LIU Hongjian1, BIAN Yuxuan1 （1. Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing 100871; 2. State Key Laboratory for Turbulence ＆ Complex Systems, College of Engineering, Peking University, Beijing 100871）
CCNC; AN
ISSN:0479-8023
DOI:10.13209/j.0479-8023.2017.015