单向微波加热木材内温度模型的热源反演数值方法1）

摘要

We used non-homogeneous heat conduction equation to solve the heat source numerical inversion problem of tempera-ture profile model in wood during microwave heat conduction equation.Firstly, by the discretization of central difference we used the marching method to obtain iterative equations about the temperature of grid nodes.Then, we found out the itera-tion increment through newton iteration equation.The heat source was calculated by inverse computation.We found out the heat source of temperature profile model in wood during microwave heating with effective simulation numerical results.%通过一类非齐次热传导方程确定热源的反问题，解决了微波处理中木材内温度分布模型的热源反演问题。首先通过中心差分离散，采用步进格式得到求解网格节点温度的迭代方程，然后通过建立牛顿迭代格式求出迭代增量，最后反演计算出热源值。运用此方法求解了微波处理中木材内温度分布模型的热源，数值模拟结果表明该方法是有效的。