任意角度方形热斗篷的设计与仿真

Design and simulation of square-shaped thermal cloaks with arbitrary angles

为了更好地控制热流的传递,首先通过坐标变换的方法,推导出方形热斗篷的导热系数的表达式,并设计出了具有任意角度的方形热斗篷;其次,通过软件Comsol Multiphysics对旋转角为π/4和5π/12的方形热斗篷进行了仿真分析。结果表明:热流能够较好地绕过内部保护区域,具有很好的隐形效果。这一技术为热流流动路径和目标温度场的控制奠定了理论基础。

In order to better control the propagation of heat flux,at first,the thermal conductivity expressions of square-shaped thermal cloaks are derived by the method of coordinate transformation,and square-shaped thermal cloaks with arbitrary angles are designed.Based on COMSOL Multiphy-sics,the square-shaped thermal cloaks with rotation angleπ/4 and 5π/12 are simulated.The results-show that the heat fluxes travel around the inner protection domain and eventually return to their original pathway with good stealth effect.This technique will lay the theoretical foundation for the control of heat fluxes path and target temperature field.