对称稳定性 meaning in English
stability; symmetric
symmetric stability
Examples
- From a nonlinear equation with boussinesq similarity on the f plane including friction dissociation and using a new kind of general energy as lyapunov function , we got the nonlinear subcritical symmetric instability criterion which a new kind of symmetric stability criterions . the nonlinear subcritical symmetric instability indicates that the larger amplitude disturb may cause the its instability to increase and then excite the mesoscale rainstorm
非线性亚临界对称不稳定判据是从含摩擦耗散的f平面上boussinesq近似下的非线性方程出发，以一种新的广义能量作为lyapunov函数，导得的一种新的对称稳定性判据，理论指出较大振幅的扰动可能出现非线性亚临界对称不稳定增长，从而激发中尺度暴雨扰动的生成。 - The results show that there are two centers of occurrence of llsw respectively in dong bei and jiang nan ; the regional torrential rain over the yangtze river basin is closely associated with llsw during the major periods of heavy rainfall ; the diurnal variation of the number of occurrence in the middle and low reaches of the yangtze river is the strongest in china there are some significant differences between llj and nallsw in positive season , spatial variation , diurnal variation and field of pressure . by the way , the important effect of inertial stability on heavy rainfall with both low level south - westerly jet and high level northerly strong flow is analyzed theoretically . the results show that the existence of the maximum of inertial stability in the left font of the low level jet is favor of the accumulation of the moist thermal energy , and conditional symmetric instability or convective instability can be expected in this region
另外，惯性稳定性的作用以往不受重视，本文通过对西南低空急流左前方和高空偏北大风轴右后方的惯性稳定性和对称稳定性的理论分析和实例计算，表明惯性稳定性在伴有高低空急流的暴雨中有重要意义，揭示了梅雨暴雨的一种新的高低空急流耦合机制：低空急流左前方惯性稳定度大值区的存在，有利于低层湿热能量的积累，使低层倾斜对流的不稳定发展更多期望于条件性对称不稳定或对流不稳定；高空偏北大风轴(西风急流)的存在，是其右后方(右侧)出现对称不稳定的有利条件，高空相对容易出现干对称不稳定；惯性稳定性的作用，使低层的倾斜对流更偏向于垂直方向，有利于对流发展，使高层的倾斜对流更偏向于水平方向，有利于高层辐散。 - A new kind of generalized energy is proposed as the lyapunov function , and thereby resulting in a new criterion of generalized nonlinear symmetric stability . it shows that not only must the dissipative coefficient be greater than a certain critical value but the initial disturbance amplitude must be synchronously smaller than another marginal value as well
从含摩擦耗散的f平面上boussinesq近似下的非线性方程组出发，提出了一种新的广义能量作为lyapunov函数，导得了一种新的非线性对称稳定性判据：即不仅耗散系数大于某一临界值而且同时初始扰动振幅小于另一临界值。