The paper establishes mathematics model of electromagnetic heating system of eddy current field and temperature field , and gives corresponding discrete format with elements as eight nodes , hexahedron equal cell , through calculating eddy - current field to gain the internal heat source that the temperature field needed , to use discrete method to solve the problem of induction - heating part ' s temperature field by axial symmetrical electromagnetic , and then to analyze the characteristic of instantaneous temperature field 本文建立了电磁加热系统的涡流场和温度场间接耦合的数学模型，分析了不同频率下涡流和温度的分布情况，并以八节点六面体等参元为例给出了涡流场对应的离散格式，通过计算涡流场获得温度场所需要的内热源强度，加热部件的温度场以轴对称格式进行离散求解，并对瞬态温度场有限单元法的求解特点进行了分析。
According to dynamical characteristic of the bubble motion in the flow field , and under the assumptions of isothermal system without interior heat source , uniform bubble size , and ignoring surface tension , the mathematical expressions for interfacial momentum exchanges have been deduced which include drag , virtual mass force , and lift 针对气液泡状流中气泡运动力学特性，在系统绝热、无内热源、忽略表面张力、气泡尺寸均一前提下建立了气液相间曳力、虚质量力、升力的数学模型表达式。
