[1]曲云霞,王欢欢.混水器内部物理量场的数值模拟分析[J].山东建筑大学学报,2017,(02):111-117.[doi:10.12077/sdjz.2017.02.002]
 Qu Yunxia,Wang Huanhuan.Numerical simulation analysis of water mixers internal physics field[J].Journal of Shandong jianzhu university,2017,(02):111-117.[doi:10.12077/sdjz.2017.02.002]
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混水器内部物理量场的数值模拟分析()
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《山东建筑大学学报》[ISSN:1673-7644/CN:37-1449/TU]

卷:
期数:
2017年02期
页码:
111-117
栏目:
研究论文
出版日期:
2017-04-15

文章信息/Info

Title:
Numerical simulation analysis of water mixers internal physics field
文章编号:
1673-7644(2017)02-0111-07
作者:
曲云霞123王欢欢1
1.山东建筑大学 热能工程学院,山东 济南 250101;2.可再生能源建筑利用技术教育部重点实验室,山东 济南 250101;3.山东省可再生能源建筑应用技术重点实验室,山东 济南 250101
Author(s):
Qu Yunxia123Wang Huanhuan1
(1.School of Thermal Engineering,Shandong Jianzhu Universtity,Jinan 250101,China,2.Key Laboratory of Renewable Energy Utilization Technologies in Building of the National Education Ministry, Jinan 250101, China;3.Shandong key Laboratory of Renewable Energy Application Technology,Shandong Jianzhu University,Jinan 250101,China)
关键词:
混水器混合效果物理量场数值模拟
Keywords:
water mixers mixed effects physics field numerical simulation
分类号:
TU831
DOI:
10.12077/sdjz.2017.02.002
文献标志码:
A
摘要:
混水器中冷水和热水混合的不均匀,会导致出水温度的不恒定,混水器内部物理量场的数值模拟分析能够优化冷、热水混水器的结构,使其在工程应用上更加节能合理,从而实现降低能耗的目标。文章基于Fluent软件的RNG k—ε湍流模型,模拟了冷、热水混水器内部的三维流动传热特性,通过对混水器内部温度场和压强的分析,阐明了入口位置对其内部内部物理量场及混合效果的影响。结果表明:入口速度较小为0.1 m/s时,三种模型的温度分布图较为接近;随着入流速度的增大,对冷、热水水平切向流入的模型1和模型2的出流温度更加恒定,并趋于300 K,而冷热水从上侧流入的模型3的出流温度则变得上下波动不定;3种模型混合效果中,模型1的混合效果最佳,模型3的混合效果最差。
Abstract:
In the mixer, cold and hot water mixed uneven will not lead to constant water temperature. The simulation analysis of the water mixers internal physics field can optimize the structure of the water mixer and make it more efficient in engineering application, thus reducing energy consumption. The paper simulates internal threedimensional flow and heat transfer characteristics on the the cold and hot water mixer based on RNG k-ε turbulence model in Fluent software, and elaborates the influence of entrance position on its internal physics field and mixing effect through the analysis of mixers’ internal temperature field and pressure. The results show that when the inlet velocity is smaller than 0.1m/s, the temperature distribution of three kinds of models is close. With the increase of flow velocity, the outlet temperature of the cold and hot water horizontal tangential flows into the model one and model two is more constant, and the outlet water temperature is constant, which tends to 300K, while the temperature of the hot and cold water flows from the upper side of the model three is not constant. Among the three models, the mixed effect of model one is the best, but that of model three is the worst.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-02-04 作者简介:曲云霞(1965-) ,女,教授,博士,主要从事热泵技术及应用等方面的研究.Email: qu_yunxia@163.com
更新日期/Last Update: 2017-04-19