Meignin L, Gondret P, Ruyer-Quil C, Rabaud M
Laboratoire Fluides, Automatique et Systèmes Thermiques, Universités Paris-Sud and P. & M. Curie, Bâtiment 502, Campus Universitaire, 91405 Orsay Cedex, France.
Phys Rev Lett. 2003 Jun 13;90(23):234502. doi: 10.1103/PhysRevLett.90.234502. Epub 2003 Jun 11.
We investigate experimentally the subcritical behavior of the Kelvin-Helmholtz instability for a gas-liquid shearing flow in a Hele-Shaw cell. The subcritical curve separating the solutions of a stable plane interface and a fully saturated nonlinear wave train is determined. Experimental results are fitted by a fifth order complex Ginzburg-Landau equation whose linear coefficients are compared to theoretical ones.
我们通过实验研究了亥姆霍兹槽中气液剪切流的开尔文-亥姆霍兹不稳定性的亚临界行为。确定了将稳定平面界面的解与完全饱和非线性波列的解分开的亚临界曲线。实验结果由一个五阶复金兹堡-朗道方程拟合，该方程的线性系数与理论值进行了比较。
