外界场作用下激发介质的波前曲率关系

Wave-front Curvature Relation of Exciting Media Affected by External Field

通过波前曲面上的移动坐标系和波前边界层的摄动分析 ,得到波前曲面的法向速度与波前曲率、外界场之间的线性关系 ,即场作用下的Eikonal方程 .此关系的物理意义解释了激发介质螺旋波、回卷波在外界场作用下的Belousov Zhabotinsky实验现象 ;

Through the moving coordinates and the perturbati on analysis of boundary layer of wave front, the linear relationship between the n ormal velocity and the wave-front curvature and the external field, that is, th e Eikonal equation in external field, was obtained. The physical meaning of this relationship can be used to explain the Belousov-Zhabotional experimental phen omenon of spiral wave and scroll wave affected by external field, while the geom etric meaning of it is to give a theoretic method to determine the shape of wave -front boundary.