简单巨系统自组织的一个范例——沙波自组织现象的研究

An Example of the Self organization in Simple Giant Systems ——Research on the Self organization of Sand wave

沙波的形成是典型的简单巨系统自组织现象。我们以河床沙波为例，采用确定型描述方法，针对河床沙波系统自组织是表面波的特点，用中观变量描述系统状态，并在此基础上确定系统的动力学方程。应用协同学的支配原理，找到决定形成沙波的序参量，很好地解释了河床沙波自组织现象。这项研究为简单巨系统自组织提供了一个范例。

The formation of sand wave is a typical self organization phenomenon of simple giant systems.An example of sand wave in riverbed is studied.The sand wave self organization is a surface wave.We use definite method to describe the phase of a system with media-scope varibles.On this basis, the dynamic equations of the system are determined.With the help of the Slaving Principle of Synergetics,the order parameter of this system is found and the self-organization of sand-wave is well explained.This work establishes a new research way for the formation theory of sand-wave.