强激光热斑形成及其稳定性研究

在论述热点跟踪及其传热机理时将靶材的比热溶、热传导系、在激光的热藕合系数均考虑成温度和时间的函数，又考虑靶材在运动时将激光辐照物体时热点的建立及其稳定情况作一动态数值模拟，为热点跟踪作准备。

Investigations for Hot Spot Establishment and Its Stability

The specific heat,heat-transfer coefficient and heat coupling coefficient of the target material(such as A1 target LY11) are all considered as the functions of temperature and time while we describes hot spot tracking and its heat transfer mechanism. A dynamic simulation is performed for the establishment and stability of laser hot spot on the target material in moving. The hot spot case before the target material being melted is considered when the laser intensity doesn't destroy the object (Q<106W/cm2 ) .