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Задачи об оптимальной форме пространственных тел, движущихся в атмосфере планеты

Задачи об оптимальной форме пространственных тел, движущихся в атмосфере планеты

Abstract

This paper presents the statements and analytical solutions of optimization problems of finding optimal 3-dimensional body shapes from viewpoint of minimum of radiation heat transfer. In a class of slender bodies possessing homotetic property the initial optimization problem may be reduced to two separated problems of finding optimal longitudinal and transverse contours. From mathematical point of view these problems are variational ones with a glance to various isoperimetric and boundary conditions. The investigation of the problem of determining the optimal transversal contour has shown that there exists a class of variational solutions composed of n identical cycles.

Целью данной работы является постановка и аналитическое решение оптимизационных задач нахождения форм трехмерных тел, минимизирующих радиационный нагрев поверхности. С математической точки зрения данные задачи являются изопериметрическими вариационными задачами с двумя неизвестными функциями, описывающими соответственно продольный и поперечный контуры тела. В классе тонких тел, обладающих свойством гомотетии, исходную оптимизационную задачу можно разбить на две более простые: об оптимальном продольном и оптимальном поперечном контурах тела. Показано, что оптимальный поперечный контур будет состоять из n симметричных циклов.

Keywords

ВАРИАЦИОННЫЕ ЗАДАЧИ, ОПТИМАЛЬНОЕ АЭРОДИНАМИЧЕСКОЕ ПРОЕКТИРОВАНИЕ, РАДИАЦИОННЫЙ ТЕПЛООБМЕН

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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
Average
Average
gold