Atmospheric Fluid Dynamics

教授F。H. Busse和G.舒伯特和R.聪明 将对非线性热对流进行理论研究 从下方加热的水流中 目标是阐明 湍流对流机制，并解释 在地球和行星上观测到的对流特征 空气. 该项目包含四个要素。 1.三维时间相关的结对流将是 计算重点是它的关系，所观察到的发言 流型对流 特征，如与之相关的平均流量， 一些类型的时间依赖的结对流，将被研究。 2.具有非对称边界条件的对流是典型的 自然，但很少受到理论上的关注。 三个-- 三维形式的对流，如那些与六角形 或正方形晶格的材料将占优势。 3.三维对流的计算 存在具有对称剪切的平均流，如平面 将Couette流推广到Poiffille流的情形。 4.快速旋转球壳中的对流将是 用高分辨率的数字代码进行研究。 结果将 解释的分歧的解决方案发现的功能方面 在圆柱环模型中。

Professors F. H. Busse and G. Schubert and Dr. R. Clever will conduct theoretical research on nonlinear thermal convection in flows heated from below. The goal is to elucidate the basic mechanisms in turbulent convection and to interpret the convective features observed in the earth and planetary atmospheres. The project contains four elements. 1. Three-dimensional time-dependent knot convection will be computed with emphasis on its relationship to the observed spoke pattern convection. Features such as mean flow associated, with some kinds of time-dependent knot convection, will be studied. 2. Convection with asymmetric boundary conditions is typical in nature, but has received little theoretical attention. Three- dimensional forms of convection such as those with an hexagonal or square lattice are expected to prevail. 3. Computations of three-dimensional convection flows in the presence of a mean flow with symmetric shear such as plane Couette flow will be extended to the case of Poiseuille flow. 4. Convection in rapidly rotating spherical shells will be studied with high resolution numerical codes. Results will be interpreted in terms of features of bifurcating solutions found in the cylindrical annulus model.//