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Double-deck structure of the boundary layer in the problem of a compressible flow along a plate with small irregularities on the surface
European Journal of Mechanics - B/Fluids. 2017. Vol. 66. P. 102-108.
We consider the problem of a viscous compressible subsonic fluid flow along a flat plate with small periodic irregularities on the surface for large Reynolds numbers. We obtain a formal asymptotic solution with double-deck structure of the boundary layer. We present the results of numerical simulation of flow in the thin boundary layer (i.e., in the near-boundary region).
Keywords: численное моделированиеDouble-deck structureдвухпалубная структуратеория пограничного слояnumerical simulationsboundary layer theoryperiodic irregularitiesformal asymptoticscompressible fluid mechanicsпериодические возмущенияформальные асимптотикисжимаемые течения
Publication based on the results of:
Gaydukov R., Danilov V., Наноструктуры. Математическая физика и моделирование 2016 Т. 15 № 1 С. 5-102
We study the existence conditions for a double-deck structure of a boundary layer in typical problems of incompressible fluid flow along surfaces with small irregularities (periodic or localized) for large Reynolds number. We obtain characteristic scales (a power of a small parameter included in a solution) which lead to the double-deck structure, and we obtain ...
Added: September 27, 2016
Danilov V. G., Gaydukov R. K., Russian Journal of Mathematical Physics 2017 Vol. 24 No. 1 P. 1-18
The problem of flow of a viscous incompressible fluid in an axially symmetric pipe with small irregularities on the wall is considered. An asymptotic solution of the problem with the double-deck structure of the boundary layer and the unperturbed flow in the environment (the “core flow”) is obtained. The results of flow numerical simulation in ...
Added: September 28, 2016
Gaydukov R. K., Fonareva A. V., Russian Journal of Mathematical Physics 2019 Vol. 26 No. 3 P. 334-343
The problem of viscous compressible fluid flow in an axially symmetric pipe with small periodic irregularities on the wall is considered for large Reynolds numbers. An asymptotic solution with double-deck structure of the boundary layer and unperturbed core flow is obtained. Numerical investigations of the influence of the density of the core flow on the flow behavior in ...
Added: September 2, 2019
Gaydukov R., European Journal of Mechanics - B/Fluids 2018 Vol. 71 P. 59-65
We consider the problem of flow of a viscous compressible subsonic fluid along a flat plate with small localized (hump-type) irregularities on the surface for large Reynolds numbers. We obtain a formal asymptotic solution with double-deck structure of the boundary layer. We present the results of numerical simulation of the flow in the thin boundary ...
Added: November 20, 2017
Danilov V., Gaydukov R., Russian Journal of Mathematical Physics 2015 Vol. 22 No. 2 P. 161-173
A fluid flow along a plate with small irregularities on the surface is considered for large Reynolds numbers. The boundary layer has a double-deck structure, i.e., both a thin boundary layer and the classical Prandtl boundary layer are present. It is proved that the solution of the boundary-value problem thus obtained exists and is unique ...
Added: September 3, 2015
Gaydukov R., Сибирский журнал вычислительной математики 2022 Т. 15 № 2 С. 97-109
A viscous liquid flow along a semi-infinite plate with small periodic irregularities on the surface was
considered for large Reynolds numbers. The flow near the plate is described by Prandtl equations with
induced pressure which are non-classical PDE, because they contain a limiting term. The main goal is to
construct a numerical algorithm for solving these equations with ...
Added: June 10, 2020
Gaidukov R.K., Danilov V.G., , in : Abstracts: Russian-French Workshop “Mathematical Hydrodynamics”, August 22–27, 2016. : Novosibirsk : [б.и.], 2016. P. 20-22.
We consider a non-stationary problem of an incompressible viscous fluid flow along surfaces with small irregularities for large Reynolds number, which have a formal asymptotic solution with a double-deck structure of the boundary layer. ...
Added: September 28, 2016
V. G. Danilov, R. K. Gaydukov, Russian Journal of Mathematical Physics 2022 Vol. 29 No. 4 P. 431-455
A problem of a nonstationary incompressible viscous fluid ow along a plate with small fast-oscillating irregularities on the surface for a large Reynolds number is considered by using rigorous methods of mathematical physics. Depending on the scales of irregularities in the problem under study, there arises a solution that describes the double-deck or triple-deck structure boundary layers on ...
Added: August 19, 2020
Danilov V., Gaydukov R., Mathematical notes 2015 Vol. 98 No. 4 P. 561-571
We consider the problem of a viscous incompressible fluid flow along a flat plate with a small solitary perturbation (of hump, step, or corner type) for large Reynolds numbers. We obtain an asymptotic solution in which the boundary layer has a double-deck structure. ...
Added: September 27, 2015
Gaydukov R., Сибирские электронные математические известия 2024 Т. 21 № 1 С. 178-187
In this paper we study a Rayleigh-type equation on a semi-infinite cylinder with a Coulomb-type potential.
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Gromov E.M., Malomed B. A., Physica Scripta 2015 Vol. 90 No. 6 P. 068021-1-068021-6
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Gaydukov R., Fonareva A. V., European Journal of Mechanics - B/Fluids 2022 Vol. 94 P. 50-59
The problem of a rotating disk with slightly perturbed surface immersed in a viscous fluid is considered.
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presents the results of numerical simulations of the flow near the ...
Added: November 14, 2021
Gaydukov R., Danilov V., Журнал вычислительной математики и математической физики 2024 № 6
Работа посвящена математическому моделированию фазового перехода лед–вода при течение жидкости внутри трубы с малым ледяным наростом на стенке при больших числах Рейнольдса. В качестве математической модели, описывающей динамику фазового перехода, используется двухпалубная модель пограничного слоя и система фазового поля. Приведены результаты численного моделирования. ...
Added: February 17, 2024
Gaydukov R., European Journal of Mechanics - B/Fluids 2021 Vol. 89 P. 401-410
An asymptotic solution with double-deck boundary layer structure is constructed for the problem of an incompressible fluid flow along a semi-infinite plate with small localized or periodic (fast-oscillating) irregularities on the surface whose shape depends on time. Numerical simulation of flow in the near-plate region is presented for two types of the shape change: oscillations of the ...
Added: January 4, 2021
Талипова Т. Г., Kurkina O. E., Терлецкая Е. В. et al., Экологические системы и приборы 2014 № 3 С. 26-38
Necessity of study of the internal waves of large amplitude in the Barents Sea related to their possible catastrophic effects on
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the framework of ...
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Купцов П. В., Stankevich N., Известия высших учебных заведений. Прикладная нелинейная динамика 2024 Т. 32 № 1 С. 72-95
Цель настоящего исследования — представить подробное описание процедуры создания и обучения нейросетевого отображения на примере моделирования динамики нейронного осциллятора типа Ходжкина–Хаксли; показать, что нейросетевые отображения, обученные для одиночного осциллятора, можно использовать в качестве элементов связанной системы, моделирующей поведение связанных осцилляторов. Методы. В работе используется численный метод решения жёстких систем обыкновенных дифференциальных уравнений. Также применяется процедура ...
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We investigate 3D problem of an incompressible fluid flow along a plate with smal localized irregularities for large Reynolds number. The formal asymptotic solution with double-deck boundary layer structure is constructed. The resuls of numerical simulation of fluid flow near surfaces is presented. ...
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Gaydukov R., Danilov V., , in : Proceedings of the International Conference DAYS on DIFFRACTION 2019. : IEEE, 2019. P. 51-56.
Equations describing the double- and triple-deck structure are demonstrated for the case of compressible flows along a small perturbed plate for large Reynolds numbers. Numerical and analytical investigations of the influence of the upstream flow on the behavior of the flow in the near-wall region are presented. ...
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Mikheev A. V., Теория. Практика. Инновации 2017 № 9 (21)
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The problem of flow of a non-Newtonian viscous fluid with power-law rheological properties
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constructed. The numerical simulation of the flow in the region near the surface was performed
for different ...
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Marshirov V. V., Marshirova L. E., Литейное производство 2015 № 9 С. 31-34
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