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Article
Initial stage of the collision of blast waves
The collision of two blast waves is analyzed for the case of variable parameters of the gas behind the wave front and wave reflection at a plane, a cylindrical, and a spherical obstacle. The reflection of a bl...
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Article
Problem of the interaction of a wedge moving with supersonic velocity when it encounters an interface between two gases
A class of exact solutions is constructed for the problem of the interaction of a supersonic wedge when it encounters an interface between two gases. It is shown that the realization of these solutions require...
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Article
An exact solution for the interaction of a supersonic wedge with the boundary between two gases
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Article
Shock strengthening in a wedge-shaped cavity
The unsteady problem of the entry of a shock wave of arbitrary intensity into a wedge-shaped cavity is examined. An exact solution of the non-linear problem of reflection of a plane wave from a nonplanar wall ...
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Article
Investigation of the problem of the decay of an arbitrary two-dimensional discontinuity
The problem of the decay of an arbitrary two-dimensional discontinuity in a gas has been investigated analytically and numerically. When the boundary of the original discontinuity is a straight line with a bre...
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Article
Dynamics of the flow of a dense fluid in narrow pores
A new approach was employed for the theoretical study of a dense fluid flow (gas and liquid) in narrow pores. Calculations were made on the basis of the Navier-Stokes equations. The transfer coefficients and t...
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Article
Supersonic Flow Past a Bent Delta Wing and Its Aerodynamic Characteristics
The supersonic flow past a bent delta wing and its aerodynamic characteristics, both local and integral, are studied using approximate analytic estimates and numerical calculations. The flow regimes with the s...
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Article
Numerical Study of Dense Fluid Flow in Narrow Pores
Unsteady-state dense flows in narrow slitlike pores that result from pulse perturbations of the initial steady state are analyzed for the case of argon flow in a carbon pore whose walls have microasperities. T...
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Article
Microdynamics of the Early Stages of Liquid/Plate Contact under Highly Nonequilibrium Conditions
A microhydrodynamic approach (in which the dissipative coefficients are calculated using the molecular model of lattice gas) is used to study the upward flow of a liquid film over a hydrophilic plate immersed ...
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Article
Theory of unsteady separation in supersonic flow around a convex corner
A theory of unsteady separation in inviscid supersonic flow around a convex corner is developed. Within the framework of the hypothesis suggested the mechanism of separationless-to-separated flow transition is...
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Article
Effect of wall potentials on the vapor and liquid flows in narrow channels
The flow of dense gases and liquids in narrow pores is theoretically described by the microhydrodynamic approach, which can be used to study the effect of wall potentials on the parameters of molecular flows. ...
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Article
The special features of molecular transport in nanosized channels
The molecular theory of the transport of pure substances and mixtures of molecules of different shapes in narrow slit-like pores, in which the potential of surface forces creates a strongly anisotropic distrib...
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Article
Molecular transport in narrow channels
The micro-hydrodynamic method is applid to the calculation of the molecular transport in narrow channels in case of capillary condensation, at the flow anisotropy resulted from the potential of the wall surfac...
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Article
Motion of a vapor—liquid meniscus in narrow slitlike pores
In this work, a microhydrodynamic approach is used to investigate the motion of the meniscus on a vapor—liquid interface in narrow slitlike pores. Calculations are performed on the basis of Navier—Stokes—type ...
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Article
Molecular flows in narrow pores at small initial perturbations
The problem of the correctness of setting the initial conditions upon the generation of a molecular flow in narrow pores is discussed. The effect of intensity of the initial perturbation of the equilibrium sta...
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Article
Mechanism of transverse structure formation in supersonic flow past a body
Direct numerical simulation within the framework of the Navier-Stokes equations is applied to study the mechanism of the generation of transverse structures (streamwise vortices) in the problem of supersonic M...
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Article
Generation of coherent structures in supersonic flow past a finite-span flat plate
The formation of coherent structures on a flat plate in a supersonic flow is numerically investigated both in the case of strong shock incidence on the plate and in the problem of oncoming harmonic waves havin...
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Article
On the theory of supersonic inviscid flow separation in gasdynamic problems
A general schematic flow representation that explains the mechanism of inviscid gas separation in time-dependent and three-dimensional gas flows is presented. The scenario of gas flow separation from a body su...
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Article
Nonlinear Instability in the Region of Laminar-Turbulent Transition in Supersonic Three-Dimensional Flow over a Flat Plate
Direct numerical simulation is applied to obtain laminar-turbulent transition in supersonic flow over a flat plate. It is shown that, due to the nonlinear instability, Tollmien–Schlichting waves generated in t...
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Article
Three-dimensional Тurbulent Supersonic Flow over a Plate
The process of laminar-turbulent transition in a boundary layer is studied in terms of vortex evolution, from the growth of weak external disturbances to the formation of intense waves resulting in the develop...
