姚凯,张艾萍
YAO Kai,ZHANG Aiping

• 1:浙能台州第二发电有限责任公司
• 2:东北电力大学

摘要(Abstract)：

采用数值分析的方法,针对不同结垢厚度圆管进行数值模拟,在层流和湍流2种流动状态下,研究污垢对速度场、温度场、压力场以及三场协同程度的影响。结果表明,速度场、温度场及压力场之间的协同角都会因污垢厚度的变化而改变,从而影响换热管的换热强度及流动功耗,同时影响综合性能换热系数。
By use of numerical analysis, circular tubes with different fouling thicknesses are numerically simulated. In laminar flow and turbulent flow, the impact of fouling on velocity field, temperature field and pressure field as well as three-field synergy is investigated. The result shows that the synergy angles of velocity field, temperature field and pressure field change as the fouling thicknesses do, which therefore influences heat exchange intensity of heat exchange tube and power consumption for flow as well as comprehensive heat transfer coefficient.

关键词(KeyWords)： 换热器;污垢;对流换热;场协同
heat exchanger;fouling;convective heat exchange;field synergy

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 姚凯,张艾萍
YAO Kai,ZHANG Aiping

DOI: 10.19585/j.zjdl.2014.11.010

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