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Численное моделирование течения в следе при сверхзвуковых скоростях

Authors: Kravtsov, A. N.; Lunin, V. Yu.;

Численное моделирование течения в следе при сверхзвуковых скоростях

Abstract

Приведены результаты численного моделирования сверхзвукового обтекания конусов и конфигураций «сфера – цилиндр – юбка» в рамках осредненных по Рейнольдсу уравнений Навье – Стокса. Представлены пространственные поля течения сверхзвукового обтекания конусов и конфигураций «сфера – цилиндр – юбка». Рассмотрены качественные особенности сверхзвукового обтекания конусов и конфигураций «сфера – цилиндр – юбка», связанные с образованием возвратно-циркуляционной зоны, области присоединения, течения в следе, в том числе области сжатия с образованием хвостового скачка уплотнения. Результаты численного моделирования сопоставлены с экспериментальными данными по визуализации течения. Проведено сравнение расчетных значений коэффициента донного давления и коэффициента донного сопротивления исследуемых аэродинамических конфигураций с экспериментальными данными. The paper presents results of a numerical simulation of supersonic flow around cones and sphere – cylinder – flare configurations in the framework of the Reynolds averaged Navier – Stokes equations. Space flow fields of supersonic flow around cones and sphere – cylinder – flare configurations are presented. Qualitative features of the supersonic flow around the considered configurations associated with the development of the recirculating zone, the region of attachment, the flow in the wake region, and the region of recompression with the formation of the shock wave are considered. Simulation results are compared with the experimental data on flow visualization. A comparison between the calculation results of the base pressure and the base drag coefficients and the experiment results is presented. Кравцов Александр Никифорович. Кандидат технических наук, доцент, ведущий научный сотрудник, Центральный аэрогидродинамический институт им. профессора Н.Е. Жуковского (г. Жуковский, Московская область). Область научных интересов – вычислительная и экспериментальная аэродинамика, сверхзвуковые течения, аэродинамика летательных аппаратов, трехмерные сверхзвуковые течения в донной области. Тел.: (495) 556-35-42; e-mail: kravcow-an@rambler.ru Alexander N. Kravtsov. Ph.D., associate professor, leading researcher, Central aerohydrodynamic institute named after prof. N.Ye. Zhukovsky (Zhukovsky city, Moskow region). The area of scientific interests – сomputational and experimental fluid mechanics, supersonic flows, aerodynamics of flying vehicles, supersonic three-dimensional base flows. Tel.: (495) 556-35-42; e-mail: kravcow-an@rambler.ru Лунин Виктор Юрьевич. Студент, Московский авиационный институт. Область научных интересов – вычислительная аэродинамика, сверхзвуковые течения, аэродинамика летательных аппаратов. Тел.: (49648) 3-23-67; e-mail: lunin.tsagi@gmail.com Victor Yu. Lunin. Student, Moscow aviation institute. The area of scientific interests – computational fluid dynamics, supersonic flows, aerodynamics of flying vehicles. Tel.: (49648) 3-23-67; e-mail: lunin.tsagi@gmail.com

Country
Russian Federation
Keywords

base drag coefficient, сверхзвуковые течения, flow in the wake region, УДК 533.6.011.5, conical tail stabilizer (flare), сферическое затупление, полуугол раствора конуса, recirculating zone, base pressure coefficient, spherical blunting, cone semiapex-angle, конический хвостовой стабилизатор (юбка), коэффициент донного давления и сопротивления, 533.6 [УДК 532.7], supersonic flows, течение в следе, возвратно-циркуляционная зона

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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
Green