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Предельная модель влажного торнадо

Предельная модель влажного торнадо

Abstract

Предложена предельная математическая модель динамики торнадо. Дано приближенное аналитическое решение этой модели. Во внимание принимаются локально равновесные процессы испарения и конденсации пара на каплях и частицах. Локально равновесные или очень медленные процессы агрегирования и распада взвешенных частиц также принимаются во внимание. Дана оценка порядков физических процессов в торнадо. Выписана расширенная система интегралов движения, вытекающая из свойств рассматриваемой предельной задачи для влажного торнадо. Учитывается полидисперсность включений. Несущая среда рассматривается как бинарная смесь сухого воздуха и пара. Выписан эффективный показатель политропической кривой торнадо. Свойства приближенного решения предельной математической модели торнадо и общие свойства реального торнадо согласуются. Например, радиус торнадо возрастает, а его тангенциальная и продольная скорости убывают с высотой от Земли, давление убывает с высотой и когда радиальная координатная компонента r →> 0. Линии тока расширяющиеся винтовые линии.

The limit mathematical model of tornado dynamics is propounded. Approximating analitical solution for this model is done. The processes of local equilibrium evaporation and condensation of vapour on droplets and beds are taken into account. The local equilibrium or very slow disaggregation and aggregation processes of suspended particles are taken into account too. The estimations of the order physical processes in tornado are given. The effective power of polytropic curve of tornado is written. The properties of the approximating solution of limit mathematical tornado model and general properties of real tornado are matched. For example, tornado radius increase, but its tangential velocity and the longitudinal velocity decrease by height, the pressure decrease by height and when radial co-ordinate component r →> 0. The streamlines are expanding screw lines.

Keywords

ТОРНАДО, СТОХАСТИЧЕСКИЙ (КИНЕТИЧЕСКИЙ) ПОДХОД, ПОЛИТРОПИЧЕСКИЙ (ПОЛИТРОП-НЫЙ), ПОЛИТРОПА, АГРЕГИРОВАНИЕ, КОАГУЛЯЦИЯ, ИСПАРЕНИЕ, КОНДЕНСАЦИЯ, ЛИНИЯ ТОКА, РАСШИРЯЮЩАЯСЯ ВИНТОВАЯ ЛИНИЯ, ПРЕДЕЛЬНАЯ МОДЕЛЬ, STOCHASTIC (KINETIC) METHOD, COALESCENCE (AGGREGATION)

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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