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13 Result(s)

within V. M. Levin Remove this filter Physics Remove this filter Vibration, Dynamical Systems, Control Remove this filter

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  1. No Access

    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)

  2. No Access

    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)

  3. No Access

    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)

  4. No Access

    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)

  5. No Access

    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)

  6. No Access

    Chapter and Conference Paper

    Interaction of Short Pulses of Focused Ultrasound with Interfaces and Plane-Parallel Objects

    Short pulses of focused ultrasound are effective instrument for measuring local velocity values of bulk acoustic modes and for studying local elastic properties of solids (microacoustical technique). The probe...

    V. M. Levin, Yu. S. Petronyuk, I. V. Ponevazh in Acoustical Imaging (2004)

  7. No Access

    Chapter and Conference Paper

    Investigation of Structure and Properties of Immisible Polymer Blend by Acoustic Microscopy Techniques

    Local elastic properties and microstructural features of low-density polyethylene-polypropylene (LDPE-PP) blends have been studied by microacoustical. Focused altrasonic beam of acoustic microscope has been em...

    J. S. Petronyuk, O. V. Priadilova, V. M. Levin, A. A. Popov in Acoustical Imaging (2004)

  8. No Access

    Chapter and Conference Paper

    Imaging of Carbon-Fiber-Reinforced (CFR) Laminates Microstructure by Acoustic Microscopy

    The focused ultrasonic beam technique has been employed to image bulk microstructure of carbon fiber-reinforced (CFR) composites. Ultrashort probe pulse (operation frequency of 50 MHz) provides layer-by-layer ...

    S. Liu, E. Guo, V. M. Levin, J. S. Petronyuk in Acoustical Imaging (2004)

  9. No Access

    Chapter and Conference Paper

    Measuring Sound Velocities and Anisotropy of Microstructural Units of Laminate Composite Materials by Microacoustical Technique

    The CFR composites are manufactured as laminate packages of ordered carbon fiber layers (prepreg plies) embedded into a polymer binder (epoxy, bismeleimide or other types of polymer resin). Elastic properties ...

    Song** Liu, Enming Guo, V. M. Levin, Yu. S. Petronyuk in Acoustical Imaging (2004)

  10. No Access

    Chapter and Conference Paper

    Application of Microacoustical Technique to Study Elastic Properties and Microstructure of New Generation of Bulk Metallic Glasses

    Elastic properties of bulk metallic glass (BMG) Pd39Ni10Cu10P21 have been studied basing on sonic velocity data analysis. Different states of the Pd39Ni 10Cu 1 oP21 system (glassy state, super-cooled liquid (SCL)...

    V. M. Levin, S. J. Petronyuk, L. Wang, J. Hu, Q. Zhang in Acoustical Imaging (2004)

  11. No Access

    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)

  12. No Access

    Article

    Stabilization of combustion in a supersonic flow

    V. L. Zimont, V. M. Levin, E. A. Meshcheryakov in Combustion, Explosion and Shock Waves (1982)

  13. No Access

    Article

    Combustion of hydrogen in a supersonic flow in a channel in the presence of a pseudodiscontinuity

    V. L. Zimont, V. M. Levin, E. A. Meshcheryakov in Combustion, Explosion and Shock Waves (1978)