[仿真]The simulation of microwave heating ofwood using a rectangularwave

Abstract G;NF5`*4mc  
Microwave heating–drying of wood using a wave guide is a relatively new area of research. In order to gain insight into the phenomena that W14F  
occur within the wave guide together with the temperature distribution in the wood, a detailed knowledge of absorbed power distribution is ,GWNLm\5  
necessary. In this paper, a two dimensional numerical model is developed to predicted the distribution of electromagnetic fields (TE10-mode), ZF7IL  
power and temperatures distributions within wood located in rectangular wave guide. A three dimensional finite difference time domain (FDTD) @fv}G>t  
scheme is used to determine electromagnetic fields and absorbed power by solving the transient Maxwell’s equations, and finite difference W&(k!6<x  
method is used to obtain unsteady temperature profiles. Temperature dependence of wood dielectric properties is simulated through an iterative [r+ZE7$2b"  
process. The simulations are performed illustrating the influence of irradiation times, working frequencies and sample size. The presented b45|vX+j  
modeling is used to identify the fundamental parameters and provides guidance for microwave drying o ..  qy)_wM  
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