在复杂边值条件下非稳态肋片传热的最优化（Ⅳ）

Optimization of Unsteady Heat Transfer of a Fin under Complex Boundary Value Conditions(Ⅳ)

研究在辐射和对流同时作用下肋根温度作周期性变化时矩形肋片的传热特性．着重讨论了肋片在这种复杂边值条件下传热的最优尺寸．

The heat transfer performance of a rectangular fin during periodic fin base temperature change is studied under simultaneous action of radiation and convection.This fourth part centres on the optimized heattransfer dimension of the fin under this complex conditions.