一类温盐双扩散对流系统流动机理的参数化分析(二)

Parametric Analysis on Flow Mechanism of a Kind of Thermohaline Double Diffusive Convection System(Part Ⅱ)

温盐双扩散对流系统具有丰富的流体形态和复杂的动力学行为,正确理解双扩散对流机理可为解决真实的复杂问题提供理论指导和解决方案。通过物理模型构建、数值方法实现,通过计算与观察开展机理研究,并总结规律。结果表明:随着浮力比的变化,除了典型的稳定层流和中心对称流,还存在一种具有奇偶交换周期结构的流场。通过对该流场进行实验,获得了高达11的涡数。对计算流体力学学科的发展有参考价值。

The thermohaline double diffusive convection system has abundant flow patterns and complicated dynamic behavior.Adequate understanding of mechanism of double diffusive convection can provide us theoretical guidance and resolution in solving actual complicated problems.By establishing physical model,realizes numerical methods,to carry out mechanism research and summarize principles through computation and observation.The results show that,with the variation of buoyancy ratio,besides representative steady laminar flow and centric symmetric flow,there is also an innovative flow pattern with periodic even/odd structure.Through modeling of such a flow pattern,we obtain the number of vortex up to 11,promoting the development of computational fluid dynamics.