[1]王定标,万方方,周俊杰..蒸发式冷凝器异型扁管性能分析及数值模拟[J].郑州大学学报(工学版),2010,31(02):67.
　WANG Dingbiao,WANG Fangfang,Zhou Junjie.Performance Analysis and Numerical Simulation of EvaporativeCondenser with Special—-shaped Flat Tube[J].Journal of Zhengzhou University (Engineering Science),2010,31(02):67.
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蒸发式冷凝器异型扁管性能分析及数值模拟()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
31
期数:
2010年02期
页码:
67
栏目:
出版日期:
2010-02-02

文章信息/Info

Title:
Performance Analysis and Numerical Simulation of EvaporativeCondenser with Special—-shaped Flat Tube
作者:
王定标; 万方方; 周俊杰.
郑州大学,化工与能源学院,河南,郑州,450001, 郑州大学,化工与能源学院,河南,郑州,450001, 郑州大学,化工与能源学院,河南,郑州,450001
Author(s):
WANG Dingbiao; WANG Fangfang; Zhou Junjie
School of Chemical and Energy Engineering，Zhengzhou University，Zhengzhou 450001，China
关键词:
蒸发式冷凝器;  流场;  数值模拟;  异型扁管
Keywords:
evaporative condenser; flow field; numerical simulation; special—shaped flat tube
文献标志码:
A
摘要:
针对目前蒸发式冷凝器采用的圆管、椭圆管、弹形管管型的不足,设计开发了新型异型扁管的管型结构,为验证其优良性能,运用FLUENT软件对4种管型管束内强制对流空气进行数值模拟,建立了管束流场的数学模型,采用求解压力耦合方程组的半隐式方法(SIMPLE)进行迭代计算求解,在进口流速为1.5～3.9 m/s范围内分别进行了计算,运用Tecplot10后处理软件直观表征空气的速度场、温度场、压力场,给出了压降损失随空气流速变化关系曲线.数值模拟结果表明,新型异型扁管和其他3种管型相比,压降约降低30%、21%及15%,同时出口截面空气平均温度有所增加.
Abstract:
Considering the shortages of current used tube in the evaporative condenser such as circular tube，O—val tube and bullet tube，the paper designed a new kind of tube type called special—shaped fiat tube withgood performance．By using the FLUENT software，a numerical simulation research on the forced convectionair flow of 4 kinds of tube bundles which were circular tube，oval tube，bullet tube and special shaped fiattube WaS conducted．The mathematical model of the tube bundle flow field was established．Our implementa—tion incorporated a SIMPLE—based semi—implicit solution algorithm that was applied to iterating calculation．Inlet velocity from 1．5 to 3．9 m／s was calculated separately．The data of simulation was processed by Tecplot10，which provided a direct illustration of the velocity，pressure and temperature fields of the flowing air in thetube bundles．The relationship curve of the pressure changing with the air velocity was also presented．The re—suh demonstrated that comparing with the other 3 tube types，the average pressure drop of the new tube typewas 30％．21％and 15％smaller and the average air temperature in the outlet cross section was higher．

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更新日期/Last Update: 1900-01-01