CC型原表面回热器传热与流动数值模拟

工程热物理学报 , 2004, 25(6): 989-991.

1.中国科学院工程热物理研究所,北京,100080

2.中国科学院工程热物理研究所,北京,100080

基金项目: 国家高技术研究发展计划(863计划)(2002AA503020)

NUMERICAL SIMULATION ON HEAT TRANSFER AND FLOW PERFORMANCES OF CC PRIMARY SURFACE RECUPERATOR

对CC型原表面回热器的主换热面附近流场和温度场进行了三维数值模拟.结果表明,传热的强化程度与流动阻力的大小取决于螺旋型二次流动的强弱,影响机理是螺旋型二次流动强烈影响流体的混合和边界层的发展.针对低雷诺数范围流动,通过比较不同结构尺度和换热面布置时传热和流动特性,对换热表面进行了设计优选.

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