V.I.Nikishov The effect of viscosity on movement of electrically conducting stratified fluid |
Applied hydromechanics, Vol. 5 (77) ¹ 4, (2003) |
| Effect of viscosity on motion of electrical conductive, stratified fluid with the presence of external magnetic field is studied. It is assumed that the Boussinesq approximation and magnetohydrodynamics approximation are valid. The equation describing the development of small perturbations of velocity, is found. On the base of the equation the regions of the existences of wave and aperiodic regimes of motion are determined. The diagram of the types of motion is constructed in the space of wave numbers. The characteristic points of the diagram are found. The case when wave vector is directed under given angle in respect to vector of magnetic induction is considered. Separately, the cases when vector of magnetic induction is directed vertically and horizontally are analyzed too. It is shown that the presence of magnetic field results in the expanding of the region of the existing of wave motion. |
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| TEXT LANGUAGE: Russian |