| 蒸发式冷凝器异型扁管性能分析及数值模拟 |
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| 引用本文： | 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(2). |
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| 作者姓名： | 王定标 万方方 周俊杰 |
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| 作者单位： | 郑州大学,化工与能源学院,河南,郑州,450001 |
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| 基金项目： | 河南省重大公益性科研招标项目(081100910100) |
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| 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.
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| 关 键 词： | 蒸发式冷凝器 流场 数值模拟 异型扁管 |
Performance Analysis and Numerical Simulation of Evaporative Condenser with Special-shaped Flat Tube |
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| WANG Ding-biao
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WAN Fang-fang
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ZHOU Jun-jie.Performance Analysis and Numerical Simulation of Evaporative Condenser with Special-shaped Flat Tube[J].Journal of Zhengzhou University: Eng Sci,2010,31(2). |
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| Authors: | WANG Ding-biao WAN Fang-fang ZHOU Jun-jie |
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| Affiliation: | WANG Ding-biao,WAN Fang-fang,ZHOU Jun-jie (School of Chemical , Energy Engineering,Zhengzhou University,Zhengzhou 450001,China) |
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| Abstract: | Considering the shortages of current used tube in the evaporative condenser such as circular tube,oval tube and bullet tube,the paper designed a new kind of tube type called special-shaped flat tube with good performance.By using the FLUENT software,a numerical simulation research on the forced convection air flow of 4 kinds of tube bundles which were circular tube,oval tube,bullet tube and special shaped flat tube was conducted.The mathematical model of the tube bundle flow field was established.Our implem... |
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| Keywords: | evaporative condenser flow field numerical simulation special-shaped flat tube |
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