STABILITY OF POISEUILLE FLOW IN THE PRESENCE OF A LONGITUDINAL MAGNETIC FIELD

摘要

The stability of the plane flow of an electrically conducting fluid with respect to small perturbations was studied at large Reynolds numbers in the presence of a longitudinal m.agnetic field. The dependence of the critical Reynolds number on the electrical conductivity is investigated. At large Reynolds numbers, a new branch of instability and a sudden change in the critical Reynolds numbers is found.