23 Result(s)

Article

Improving and Evaluating the Performance of a Ramjet Combustor under Conditions of Attached Air Supply with a Thrust Meter

This paper presents an analysis of approaches to ensuring the performance of a ramjet combustor using an unconventional method of measuring the thrust in testing an experimental model of a liquid-fuel combusto...

V. M. Levin, L. L. Kartovitskii, A. A. Yakovlev in Combustion, Explosion, and Shock Waves (2023)

Article

Differential Model and Evaluation of the Formal Kinetic Law in the Analysis of Combustion in a Solid-Propellant Gas Generator

This paper presents an approach to the generalization of the features of solid propellant combustion in gas generators of propulsion systems based on a one-dimensional differential model. The heat release rate...

L. L. Kartovitskii, V. M. Levin, L. S. Yanovskii in Combustion, Explosion, and Shock Waves (2018)

Article

Numerical study of mixing in an air-breathing rocket engine

A method of increasing the efficiency of mixing in an air-breathing rocket engine is discussed. Three-dimensional simulations confirm the advantages of the proposed method based on using normal supply of produ...

L. L. Kartovitskii, V. M. Levin, A. A. Yakovlev in Combustion, Explosion, and Shock Waves (2015)

Article

Simulation of Concrete Deformation on the Modified Theory of Flow

Basic relations of the concrete deformation model based on the modified theory of flow are presented. Calculation data are compared with experimental results in tension, compression, and compression–tension. T...

V. S. Hudramovich, V. M. Levin, E. V. Samarskaya, S. V. Shabel’nik in Strength of Materials (2014)

Article

Unsteadiness in a ramjet model

The process of combustion of a hydrocarbon fuel in a pulsed mode is discussed on the basis of results of ramjet testing in an external flow modeling a Mach 5 flight.

V. M. Levin, V. N. Karasev, L. L. Kartovitskii… in Combustion, Explosion, and Shock Waves (2013)

Article

Problems of Implementing Ramjet Operation

This paper discusses an approach to implementing the operation and designing the flow duct of a ramjet combustor. Methods of air compression, ignition, flame stabilization, and fuel combustion in the flow are ...

V. M. Levin in Combustion, Explosion, and Shock Waves (2010)

Article

Dispersion and attenuation in thermoelastic multisize particulate composites

This paper deals with the problem of multiple scattering by a random distribution of spherical solid particles in a solid. The material properties of both media are taken as thermoelastic. The radii of the inc...

O. C. Valdiviezo-Mijangos, V. M. Levin, F. J. Sabina in Archive of Applied Mechanics (2009)

Article

Propagation of longitudinal elastic waves in composites with a random set of spherical inclusions (effective field approach)

The work is devoted to the problem of plane monochromatic longitudinal wave propagation through a homogeneous elastic medium with a random set of spherical inclusions. The effective field method and quasicryst...

S. K. Kanaun, V. M. Levin in Archive of Applied Mechanics (2007)

Article

Self-consistent methods in the problem of axial elastic shear wave propagation through fiber composites

Two self-consistent schemes (effective medium method and effective field method) are applied to the problem of monochromatic elastic shear wave propagation through matrix composite materials containing cylindr...

S. K. Kanaun, V. M. Levin in Archive of Applied Mechanics (2003)

Article

A Study of Crazing in Polymeric Optical Fibers

This paper is dedicated to studying crazing under cyclic bending with axial loading. The tests were carried out on a special testing equipment. The influence of such factors as the bending radius, the axial lo...

A. I. Zubkov, S. D. Khizhnyak, P. M. Pakhomov… in Mechanics of Composite Materials (2002)

Article

Scattering of Acoustoelectric Waves on a Cylindrical Inhomogeneity in a Transversely Isotropic Piezoelectric Medium

Scattering of acoustoelectric waves on a inhomogeneity is studied. The scatterer is a circular, continuous piezoelectric cylinder (fiber) embedded in a transversely isotropic piezoelectric medium. Expressions ...

V. M. Levin, T. Michelitsch in Mechanics of Composite Materials (2001)

Article

Spheroidal inhomogeneity in a transversely isotropic piezoelectric medium

Piezoelectric material containing an inhomogeneity with different electroelastic properties is considered. The coupled electroelastic fields within the inclusion satisfy a system of integral equations solved ...

V. M. Levin, Th. Michelitsch, I. Sevostianov in Archive of Applied Mechanics (2000)

Article

The microstresses evaluation in piezoelectric polycrystals

Polycrystalline materials with piezoelectric grains are considered. One of self-consistent schemes (effective field method) is used for evaluation of microstresses in such medium taking into account the couple...

V.M. Levin in International Journal of Fracture (1999)

Article

Liquid and gas flows in porous media with allowance for induced anisotropy

The changes in the permeability of a porous medium resulting from the reorientation of the solid matrix particles under the influence of the percolating flow are considered. The mathematical model also contain...

V. A. Babkin, V. M. Levin, V. N. Nikolaevskii in Fluid Dynamics (1992)

Article

Elastic waves in matrix composites reinforced by thin rigid inclusions

V. M. Levin, S. K. Kanaun in Mechanics of Composite Materials (1991)

Article

Study of two-layer flow of viscoelastic molten polymers in axisymmetrical channels

A. R. Davydov, V. M. Levin, V. P. Pervadchuk… in Journal of Applied Mechanics and Technical… (1991)

Article

Experimental investigation of the structure of coaxial nonisobaric reacting jets

This study, a continuation of an experimental program of research on isobaric coaxial jets [2], was primarily directed towards obtaining a more detailed picture of the flow structure, in particular by measurin...

S. I. Baranovskii, V. M. Levin, A. I. Turishchev in Fluid Dynamics (1987)

Article

Propagation of elastic waves in media reinforced with continuous fibers

V. M. Levin in Mechanics of Composite Materials (1986)

Article

Microstresses in composite materials in a region of sharply varying external fields

S. K. Kanaun, V. M. Levin in Mechanics of Composite Materials (1985)

Article

Characteristics of supersonic combustion of unmixed gases in channels

V. L. Zimont, V. M. Levin, E. A. Meshcheryakov… in Combustion, Explosion and Shock Waves (1983)