| 具有复杂结构的换热器出水管段内湍流的数值模拟 |
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| 引用本文： | 聂建虎,陶文铨,王秋旺. 具有复杂结构的换热器出水管段内湍流的数值模拟[J]. 西安交通大学学报, 2000, 34(5): 13-18 |
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| 作者姓名： | 聂建虎 陶文铨 王秋旺 |
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| 作者单位： | 西安交通大学,710049,西安 |
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| 基金项目： | 高等学校博士学科点专项科研基金资助课题!(98069835) |
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| 摘 要： | 为了确认换热器封头中挡板的存在对出口此中流场均匀性的影响,需要对封头及出口管嘴中的流场进行数值模拟。计算中采用ｋ－ε两方程模型,利用区域扩充方法来模拟复杂的几何形状,并进行了耦合计算,对流体区域内的阶梯形固体边界提出了一种实施壁面函数法的方法。
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| 关 键 词： | 湍流 换热器 出水管段 数值模拟 复杂结构 |
Three Dimensional Simulation of Turbulence Flow for Heat Exchanger Head with Complex Geometries |
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| Nie Jianhu,Tao Wenquan,Wang Qiuwang. Three Dimensional Simulation of Turbulence Flow for Heat Exchanger Head with Complex Geometries[J]. Journal of Xi'an Jiaotong University, 2000, 34(5): 13-18 |
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| Authors: | Nie Jianhu Tao Wenquan Wang Qiuwang |
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| Abstract: | Standard ke two equation model was used to simulate the complex fluid flow in a heat exchanger head. A baffle is set ahead of an outlet tube. The domain extension method was adopted and conjugated computation was conducted. Implementation of wall function method was proposed for analyzing the step wise solid boundaries in the fluid region. Computational results show that baffle could enhance uniformity of the outflow velocity distribution. |
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| Keywords: | turbulence flow wall function method complex geometries numerical study |
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