At the point c, the star develops a convection zone extending from near the surface deep into the extended envelope . 在C点,星体产生一个对流区,从表面附近向内扩展到广袤的包层。
At the point c , the star develops a convection zone extending from near the surface deep into the extended envelope 在c点,星体产生一个对流区,从表面附近向内扩展到广袤的包层。
Evaluation results show that the turbulence in convection zone is capable of generating enough wave energy to supply coronal energy lose due to convection and radiation 利用理论结果的计算表明,对流层的湍动对流完全有可能激发足够的波能去补充日冕中等离子体对流和辐射造成的能量损失。
One reason is the change of interior convection zone with spectral type produce the phenomena ; another reason is the differential rotation of f type stars exist a upper limit 这一拐点的出现可能是f型主序星的对流区的变化影响形成的,也可能是f型主序星在f5附近存在较差自转的上限形成的。
In the first part , turbulent motion in convection zone as source to generate alfven waves is studied following lighthill - stein theory , in which the turbulent source was described by nonlinear terms in mhd equations 就是将mhd方程中的非线性项通过fourier变换转化为湍动源项,并采用kolmogroff幂律谱来描述对流层的湍动谱。
According to the analysis of the relation of between angle momentum and magnetic momentum , we find that a2 dynamo is main mechanism for the stars with deep interior convection zone similarly late - m type stars 从主序星的角动量与以色球活动指数为指标的磁动量间的相关性分析表明~ 2发电机可能是m型主序星磁场产生的主要机制。
Among them , phreatic , vadose and in the middle of convection zones undergone dissolution ( especially in vadose zone ) . the mixing and upper convection zones undergone cementation . the lower convection zone remained unaltered 其中渗流、潜流和深部对流带中部以溶蚀作用为主(潜流带最强烈) ,混合带和对流带上部以胶结作用为主,对流带下部成岩作用不活跃。
For dagang oilfield , cements mainly is calcite , other and fills are mud , silicate , pyrite and organic matter , at least there are two or three stages . ( 4 ) . after studying of cement stratagraphy , cementation - dissolution diagenesis is divided into four zones : phreatic , vadose , deep mixing and deep convection zones 从大港探区的实例出发,认为充填物类型除方解石外,泥质充填也较普遍,同时还有硅质、黄铁矿、有机质等多种充填类型,充填期次至少2一3期; ( 4 )胶结物地层学研究,将胶结溶蚀成岩作用划分出四个带:渗流带、潜流带、深部混合带和深部对流带。
百科解释
The convection zone of a star is the range of radii in which energy is transported primarily by convection. In the radiation zone, energy is transported by radiation.