Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2009, Issue 6, Vol. 2, pp. 118-125
Intermediate stage of tornado
М.В. Заволженский
1, П.Б. Руткевич
21 Институт водных проблем РАН, Южный отдел, 344098 Ростов-на-Дону, пр. Стачки, 198
2 Институт космических исследований РАН, Москва
A steady-state axisymmetric flow of heavy viscous incompressible fluid under action of tangent
stresses on the discontinuity of its density surface is considered. The eddy currents are considered to
develop at the initial stage of the tornado. So the intermediate stage can be considered as a flow induced
by the forced influence on the density surface discontinuity of the tangent stresses with the account of
surface deformations. The influence of convective currants on the flow and their main cause ⎯ the
Archimedean force ⎯ should be taken into account in the tornado intermediate stage. The flow in the
tornado is considered as steady and axisymmetric. The temperature on the density surface discontinuity
is considered known.
Keywords: tornado, axisymmetric flow, steady-state flow, incompressible fluid, density surface discontinuity
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