勉励 发表于 2025-3-23 10:54:43
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An Introduction to Helioseismologyter we will be concerned with essentially the same problem, only the geometry will be different. Written in cylindrical coordinates, the Navier-Stokes equations contain, as before, nonlinear terms, allowing different types of flow regime (laminar, turbulent, …). However, as we will see later, there松鸡 发表于 2025-3-24 01:00:03
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Some concepts of structural dynamics,the Orr-Sommerfeld equation, or the more complex nonlinear problem. Critical Reynolds numbers of the order of 10. are obtained. However it is possible to induce hydrodynamic instabilities at much smaller Reynolds numbers by adding a destabilizing force as e.g. an adverse temperature gradient (the fl草率女 发表于 2025-3-24 11:51:17
V. Feinberg,A. Levin,E. Rabinoviche generally concentration gradients and concentration fluctuations are present and must be taken into account. Particularly, one should like to know how much concentration fluctuations affect the stability of a multicomponent system heated from below. Our interest in the two-component Bénard problemgrowth-factor 发表于 2025-3-24 16:47:59
V. Feinberg,A. Levin,E. Rabinovichse, and the kinetic theory of gases predicts, more or less correctly, the experimental values of transport coefficients such as the viscosity and the isothermal diffusion coefficient, and even coupled phenomena, such as the thermal diffusion effect. However in the liquid phase the situation is far fcompanion 发表于 2025-3-24 22:44:53
https://doi.org/10.1007/978-94-011-4130-7In this paragraph the elements of the calculus of variations are introduced ; they will be useful in this book.Deference 发表于 2025-3-25 02:25:34
https://doi.org/10.1007/978-94-011-4415-5In chapters III and IV we have studied isothermal forced convection: the temperature was the same at each point inside the system and this only possible if