摘要
This paper studies the phase effect in mode coupling of Kelvin-Helmholtz instability in two-dimensionalincompressible fluid.It is found that there is an important growth phenomenon of every mode in the mode couplingprocess.The growth changes periodically with phase difference and in the condition of our simulation the period is about0.7π.The period characteristic is apparent in all stage of the mode coupling process,especially in the relatively laterstage.
This paper studies the phase effect in mode coupling of Kelvin-Helmholtz instability in two-dimensional incompressible fluid. It is found that there is an important growth phenomenon of every mode in the mode coupling process. The growth changes periodically with phase difference and in the condition of our simulation the period is about 0.7π The period characteristic is apparent in all stage of the mode coupling process, especially in the relatively later stage.
基金
Supported by the National Basic Research Program of China under Grant No.2007CB815100
the Research Fund for the Doctoral Program of Higher Education of China under Grant No.20070290008
the National Natural Science Foundation of China under Grant Nos.10775020 and 10874242
