The motion of organization center of three_dimensional untwisted scroll waves in excitable media with single diffusion is studied by singular perturbation method in this paper.
应用奇异摄动方法,讨论了在单扩散型激发介质中无扭曲的三维回卷波组织中心的运动规律·确定了无扭曲的组织中心的曲率关系和线性律,这些结果具有明显的物理意义,而且与实验符合得很好
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 deter.
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 ;几何意义给出一个确定波前边界形状的理论方
Calculated results show that the spiral waves and breakup in the plane, scroll waves and twist in the space are obtained.
利用数值方法 ,研究激发介质的波形结构 ,通过计算得到平面螺旋波及其破碎图形 ,空间回卷波及其扭曲图形 ,根据波形图案解释了BZ化学反应和阿米巴细菌聚集的实验现象 ,描述了心肌激发介质内部的波形构
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