摘要
对热盐双扩散对流系统的非线性稳定性进行了研究,其中考虑了交叉扩散的影响.利用一个有限表达式来求解非线性方程组,得到了较好的结果.只需将交叉扩散系数表示为两个参数,就得出了更一般的R_T-R_S关系式,以及定常有限振幅的表达式.而当交叉扩散系数取为零时,该式就还原为前人在不计及交叉扩散时导出的关系式.
In this paper,the nonlinear stability of double-diffusive convection with cross-diffusion in a thermohaline system is analyzed.By using a simple expression,the nonlinear equations are solved.By expressing two cross-diffusive coefficients by two parameters,a more general R_T-R_S relation and expressions of steady finite amplitude are obtained.These expressions can be reduced to those previously-derived ones when both cross-diffusive coefficients are equal to zero.
出处
《力学与实践》
CSCD
北大核心
2010年第5期22-26,共5页
Mechanics in Engineering
关键词
热盐系统
双扩散对流
交叉扩散
非线性稳定性
themohaline system
double-diffusive convection
cross-diffusion
nonlinear stability
