Publications
99 results found
Chernyshenko SI, Privalov AV, 2004, Internal degrees of freedom of an actuator disk model, JOURNAL OF PROPULSION AND POWER, Vol: 20, Pages: 155-163, ISSN: 0748-4658
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- Citations: 3
Chernyshenko SI, Galletti B, Iollo A, et al., 2003, Trapped vortices and a favourable pressure gradient, Journal of Fluid Mechanics, Vol: 482, Pages: 235-255, ISSN: 0022-1120
Buldakov EV, Chernyshenko SI, Ruban AI, 2000, On the uniqueness of steady flow past a rotating cylinder with suction, Journal of Fluid Mechanics, Vol: 411, Pages: 213-232, ISSN: 0022-1120
Chernyshenko SI, 1999, Non-linear development of rotating stall in an axial flow compressor at near-critical flow rate, Prikladnaya Matematika i Mekhanika, Vol: 63, Pages: 457-466, ISSN: 0032-8235
Chernyshenko SI, 1999, Non-linear development of rotating stall in an axial compressor at a near-critical flow rate, PMM JOURNAL OF APPLIED MATHEMATICS AND MECHANICS, Vol: 63, Pages: 439-447, ISSN: 0021-8928
Teverovskij MA, Chernyshenko SI, 1998, Vortex flow in outlet channel of axial-flow compressor under conditions of rotary separation, Izvestiya Akademii Nauk. Mekhanika Zhidkosti I Gaza, Pages: 58-71, ISSN: 0568-5281
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- Citations: 1
Chernyshenko SI, 1998, Asymptotic theory of global separation, Applied Mechanics Reviews, Vol: 51, Pages: 523-536
This article aims to review the recent achievements and the state of the art in the high Reynolds number asymptotic theory of steady separated flow past bluff bodies for a general reader specializing in fluid dynamics who is not necessarily familiar with modern asymptotic techniques. A short historical overview is given. The ideas of the mathematical methods used are briefly outlined. Then the general structure of the solution for a plane flow past a bluff body is described. The physical mechanisms of such a flow are discussed, and quantitative results are given and compared with numerical calculations. Existing extensions of the theory and the latest results for axisymmetric flows are described. In conclusion, the relationship between asymptotic theory and real turbulent flows is discussed. This review article contains 76 references.
Bunyakin AV, Chernyshenko SI, Stepanov GY, 1998, High-Reynolds-number Batchelor-model asymptotics of a flow past an aerofoil with a vortex trapped in a cavity, JOURNAL OF FLUID MECHANICS, Vol: 358, Pages: 283-297, ISSN: 0022-1120
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- Citations: 26
Teverovskii MA, Chernyshenko SI, 1998, Vortex flow in the outlet duct of an axial compressor in the rotating stall regime, Fluid Dynamics, Vol: 33, Pages: 683-693, ISSN: 0015-4628
An ideal incompressible fluid flow in the right half-plane periodic in the transverse direction is considered. This flow models that in the outlet duct of an axial compressor in the rotating stall regime. It is a feature of the problem that in the inlet cross-section two velocity components are prescribed while the vorticity distribution is unknown. An explicit solution is found in the form of a series in a small parameter characterizing the deviation of the velocity from a constant value. Numerical results are obtained.
Nikitin NV, Chernyshenko SI, 1997, On the nature of organized structures in turbulent wall flows, Izvestiya Akademii Nauk. Mekhanika Zhidkosti I Gaza, Pages: 24-31, ISSN: 0568-5281
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- Citations: 1
Nikitin NB, Chernyshenko SI, 1997, On the nature of the organized structures in turbulent near-wall flows, Fluid Dynamics, Vol: 32, Pages: 18-23, ISSN: 0015-4628
A physical mechanism of onset of large-scale organized structures in turbulent flows along a plane wall which are the cause of intensification of turbulent fluctuations is formulated. The structures take the form of high-speed and low-speed streaks caused by streamwise vortices, i.e., motions in the plane of the transverse cross-section. The streamwise vortices are excited as a result of instability under the action of the anisotropy of the normal components of the Reynolds stress tensor. A model for describing these vortices that gives characteristics in qualitative and quantitative agreement with the experimental data is proposed. In particular, the most probable and mean distances between neighboring vortices are correctly reproduced. The theory makes it possible to explain certain methods of turbulent flow control for the purpose of drag reduction. © 1997 Plenum Publishing Corporation.
Bunyakin AV, Chernyshenko SI, Stepanov GY, 1996, Inviscid Batchelor-model flow past an airfoil with a vortex trapped in a cavity, JOURNAL OF FLUID MECHANICS, Vol: 323, Pages: 367-376, ISSN: 0022-1120
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- Citations: 11
Chernyshenko SI, Castro IP, 1996, High-Reynolds-number weakly stratified flow past an obstacle, JOURNAL OF FLUID MECHANICS, Vol: 317, Pages: 155-178, ISSN: 0022-1120
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- Citations: 11
CHERNYSHENKO SI, 1995, STABILIZATION OF TRAPPED VORTICES BY ALTERNATING BLOWING SUCTION, PHYSICS OF FLUIDS, Vol: 7, Pages: 802-807, ISSN: 1070-6631
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- Citations: 20
Chernyshenko SI, 1995, Asymptotics of steady axisymmetric flow of incompressible fluid past a bluff body at high Reynolds number, Fluid Dynamics, Vol: 30, Pages: 28-34, ISSN: 0015-4628
Steady axisymmetric separated flow at high Reynolds number is considered. It is shown that the body scale flow does not correspond to the Kirchhoff model because near the body there is a fairly strong reversed flow causing the secondary separation which is observed in numerical computations. Quantitative theoretical results are compared with the numerical results. © 1995 Plenum Publishing Corporation.
Chernyshenko SI, 1995, Asymptotics of steady axisymmetric flow of incompressible fluid past a bluff body at high Reynolds number, Rossi\u\i skaya Akademiya Nauk. Izvestiya. Mekhanika Zhidkosti i Gaza, Pages: 37-44
CHERNYSHENKO SI, CASTRO IP, 1993, HIGH-REYNOLDS-NUMBER ASYMPTOTICS OF THE STEADY FLOW-THROUGH A ROW OF BLUFF-BODIES, JOURNAL OF FLUID MECHANICS, Vol: 257, Pages: 421-449, ISSN: 0022-1120
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- Citations: 17
Chernyshenko SI, 1993, Density-stratified Sadovskii flow in a channel, Fluid Dynamics, Vol: 28, Pages: 524-528, ISSN: 0015-4628
Stably density-stratified and nonstratified flows in a channel past a pair of symmetrical closed-streamline vortices on the channel axis are considered. The numerical results obtained cover the whole range of subcritical stratification and eddy lengths. An asymptotic solution for a very long closed-streamline region is found. The results can be used directly in the asymptotic theory of separated flows at high Reynolds number. Sadovskii flows are plane potential inviscid flows past a pair of closed-streamline regions of uniform vorticity. The flow velocity may be discontinuous at the boundary of the closed-streamline region. The analysis below is restricted to the specific case of continuous velocity distribution, so that the Bernoulli constant jump at the eddy boundary is zero. Unbounded nonstratified flows of this kind were studied in [1, 2]. Calculations of the corresponding channel flow were restricted to relatively wide channels. Closely related problems were also considered in [3, 4]. © 1994 Plenum Publishing Corporation.
Chernyshenko SI, 1993, Density-stratified Sadovskij flow in a channel, Doklady Akademii nauk SSSR, Pages: 118-123, ISSN: 0002-3264
Stable density-stratified and non-stratified non-viscous flows in a channel whose axis of symmetry passes through a pair of symmetric vortex regions with closed lines of current are considered. Numerical calculations covering the entire range of subcritical stratification and possible lengths of the zone of closed current lines are carried out. An asymptotic solution for a very large length of the zone of closed current lines is constructed. The results obtained are usable immediately in the asymptotic theory of stalled flows at large Reynolds numbers.
CHERNYSHENKO S, 1993, STRATIFIED SADOVSKII FLOW IN A CHANNEL, JOURNAL OF FLUID MECHANICS, Vol: 250, Pages: 423-431, ISSN: 0022-1120
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- Citations: 12
Chernyshenko SI, 1993, Asymptotics of the flow through a cascade of blunt bodies for large Reynolds numbers, Izvestiya Vysshikh Uchebnykh Zavedeni\u\i. Fizika, Vol: 36, Pages: 30-52, ISSN: 0021-3411
Chernyshenko SI, 1991, Separated flow over a backward-facing step whose height is much greater than the thickness of the lower sublayer of the interaction zone, Fluid Dynamics, Vol: 26, Pages: 496-501, ISSN: 0015-4628
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- Citations: 5
Chernyshenko SI, 1991, Separated flow past a backward-facing step with the height considerably greater than the width of the lower sublayer of the triple-deck structure, Izvestiya Akademii Nauk. Mekhanika Zhidkosti I Gaza, Pages: 25-30, ISSN: 0568-5281
In the frame of the theory of boundary layer - supersonic flow interaction a small streamlined step is under consideration. The step height is suggested to be much larger than the thickness of the lower sublayer in the interaction area but it is much smaller than the boundary layer thickness. For the proper limits the flow structure becomes similar to one in the well-known Batchelor model. The presence of drag points in viscous flow inside the separated area results in secondary separation arising. The secondary separation area for the problem of streamlined small step in supersonic flow turns out to be relatively small. This feature allows to obtain a value of bottom pressure by an extrapolation method.
Chernyshenko SI, 1991, Asymptotic Theory of the Stationary Flow Around Bluff Bodies, Separated Flows and Jets, Publisher: Springer Berlin Heidelberg, Pages: 121-124, ISBN: 9783642844492
Chernyshenko SI, 1988, The asymptotic form of the stationary separated circumfluence of a body at high Reynolds numbers, PMM-J APPL MATH MEC+, Vol: 52, Pages: 746-753, ISSN: 0021-8928
Chernyshenko SI, 1988, Asymptotics of a steady separated flow around a body with large Reynolds numbers, Akademiya Nauk SSSR. Otdelenie Tekhnicheskikh Nauk. Institut Mekhaniki. Prikladnaya Matematika i Mekhanika, Vol: 52, Pages: 958-966, ISSN: 0032-8235
Chernyshenko SI, 1985, Calculation of separated flows of low-viscosity liquids using the Batchelor model.
Conditions of applicability and examples of application of the Batchelor Model (BM) are considered. The application of the BM to flow near a plate mounted perpendicularly to a wall at the stagnation point is examined, and a method for solving the corresponding eddy potential problem is described. The application of a precise form of the condition for determining vorticity is also examined. It is shown that eddy potential flow cannot be the limit (at Re approaching infinity) of laminar flow behind a step, arguments in favour of an analogous conclusion with regard to flow past blunt bodies are presented.
Chernyshenko SI, 1985, Calculation of separated flows of low-viscosity liquids using the Batchelor model.
Conditions of applicability and examples of application of the Batchelor Model (BM) are considered. The application of the BM to flow near a plate mounted perpendicularly to a wall at the stagnation point is examined, and a method for solving the corresponding eddy potential problem is described. The application of a precise form of the condition for determining vorticity is also examined. It is shown that eddy potential flow cannot be the limit (at Re approaching infinity) of laminar flow behind a step, arguments in favour of an analogous conclusion with regard to flow past blunt bodies are presented.
CHERNYSHENKO SI, 1985, THE ASYMPTOTIC OF STATIONARY SOLUTIONS OF NAVIER-STOKES EQUATIONS AT LARGE REYNOLDS-NUMBERS, DOKLADY AKADEMII NAUK SSSR, Vol: 285, Pages: 1353-1355, ISSN: 0002-3264
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- Citations: 3
Chernyshenko SI, 1985, On the asymptotic behavior of stationary solutions of the Navier-Stokes equations for large Reynolds numbers, Doklady Akademii Nauk SSSR, Vol: 285, Pages: 1353-1355, ISSN: 0002-3264
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