流量阶跃变化后散热器动态热特性分析
Dynamic heat characteristics of radiators after a step change in flow rate
摘要：
分析了供热流量阶跃变化后散热器内流体的流动和传热特性，提出了在过渡过程中散热器内温度分布曲线平移规律的假设，在此基础上推导出过渡过程中散热器散热量与时间的函数关系，并通过实验验证了该函数关系的正确性。
关键词：流量,阶跃变化,散热器,过渡过程,热特性
Abstract：
Analyses the flowing and heat transfer characteristics of fluid in radiators after a step change. Puts forward the levelmoving presumption of temperature distribution curve in radiators during transient. On the basis of the presumption， deduces a function relationship of radiator’s heating capacities and time， and validates the relationship through experiment.
Keywords:flow rate， step change， radiator， transient， thermal characteristics