摘要
本研究设计了一种新型固态微波功率源馈电的金属腔体加热装置.从电磁场与物质相互作用的物理机理出发,分析了被加热物体中电磁场,热场及流体场的耦合作用,并分别通过COMSOL Multiphysics和自己编写的时域有限差分算法程序建立数学模型对多物理场耦合进行了计算.最后,通过实验验证了数学模型的正确性及该腔体对微波吸收效率和加热均匀性的提升.该设计可应用于加热低损耗媒质.
A novel designed microwave heating device feed by solid generator is present in this research. The coupling interaction of electromagnetic field, thermal field and fluid field were analyzed mathemati- cally, numerical calculation result by self-programmed Finite Different Time Domain method and COM- SOL Multiphysics commercial software was also given. The final experimental results verified the theory derivation and numerical calculation. This subtle device improves the microwave energy absorption and temperature uniformness substantially, which can be predicted it with a great potential application in in- dustrial, especially in low lossy material heating.
出处
《四川大学学报（自然科学版）》
CAS
CSCD
北大核心
2016年第5期1053-1056,共4页
Journal of Sichuan University(Natural Science Edition)
基金
国家自然科学基金(U1230112)
关键词
多物理场耦合
腔体加热
吸收效率
温度均匀性
Multiphysics coupling
Cavity heating
Absorption efficiency
Temperature uniformity
