变对流换热系数等截面矩形肋导热的精确解  

Exact Conduction Solution of Variable Heat Transfer Coefficient in Longitudinal Fin of Rectangular Profile

作　　者：孙昆峰[1] 

机构地区：[1]中原工学院能源与环境学院,河南郑州450007

出　　处：《成组技术与生产现代化》2010年第4期4-6,共3页Group Technology & Production Modernization

摘　　要：通过方程变换,给出了表面对流换热系数沿肋高成线性关系的等截面矩形肋传热问题的精确解,同时推导出相应的肋效率和热流量计算公式.该解表达形式简单,可以很方便地应用于工程实践,对传热强化中肋片的设计进行指导.A equation transformation was used.The analytic conduction solution in Longitudinal Fin of Rectangular Profile was derived which heat transfer coefficient linearly vary as displacement from the fin base.The corresponding fin efficiency and rate at fin dissipates heat was given.The expression of analytic solution is simple,It can conveniently be used in engineering practice,and guides the fin design of heat transfer strengthening.

关 键 词：精确解 导热 肋 对流换热系数 

分 类 号：TK124[动力工程及工程热物理—工程热物理]