古新,郝建设,刘敏珊,朱培纳

• 1:郑州大学河南省过程传热与节能重点实验室

摘要(Abstract)：

为了能清晰地了解帘式折流片换热器的壳程特性,采用数值模拟的方法对帘式折流片换热器三维实体模型壳程流体流动和传热性能进行研究。分别从压力梯度、无因次温度、速度三个主要特征,分析具有不同壳程流体流量,不同折流栅装配方式下帘式折流片换热器壳程流体流动与传热周期性充分发展区域的长度范围。在所研究范围内得出当折流栅同向装配时,流体在翻过第三块折流栅后到倒数第一块折流栅之间,流体的流动和传热为周期性充分发展状态;折流栅对称装配时,流体在翻过第二块折流栅后到倒数第一块折流栅之间为周期性充分发展段。帘式折流片换热器几何结构一定的情况下,周期性充分发展区域的长度与壳程流体流量的变化无关。

关键词(KeyWords)： 数值模拟;帘式折流片;进出口段;周期性充分发展

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51006092)

作者(Author): 古新,郝建设,刘敏珊,朱培纳

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