Shock and Blast Waves: Propagation, Reflection and Interaction in Memory of Prof. Vladimir N. Uskov

A special issue of Fluids (ISSN 2311-5521).

Deadline for manuscript submissions: closed (30 April 2024) | Viewed by 2672

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Department of Plasma, Gas Dynamics and Heat Engineering, Baltic State Technical University “VOENMEH”, St. Petersburg, Russia
Interests: supersonic jet flows; shock interactions; blast and shock waves; blast protection
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Special Issue Information

Dear Colleagues,

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Prof. Vladimir N. Uskov

The content of this Special Issue is, in many ways, a continuation of the research conducted by Vladimir Uskov (1941-2014), Professor of Baltic State Technical University “VOENMEH” and St. Petersburg State University. He was an outstanding scientist in the field of supersonic jet flows and interactions of gas-dynamic discontinuities.

Since 1966, V.N. Uskov and his colleagues have carried out experimental research into supersonic jet flows and their shock wave structure, especially at interactions with obstacles. Studies of the shock wave noise of supersonic gas jets and other aero-acoustic effects were continued in the 1980s and 1990s. Prof. V.N. Uskov, together with his colleagues, developed a method of applying supersonic jets’ oscillation modes and other shock-wave effects to powder metallurgy problems. Since 1975, he has been the author of 40 inventions.

At the end of the 1970s, V.N. Uskov began his studies of the interactions of shock waves and other gas-dynamic discontinuities. The monograph “The Interaction of Stationary Gasdynamic Discontinuities” (1995), written by Prof. V.N. Uskov and his younger colleagues Dr. A.L. Adrianov and Dr. A.L. Starykh, presents the main currently known cases of shock reflection, interactions, and refraction, as well as the theory of triple-shock configurations.

Prof. Uskov was an excellent teacher and dearest friend to many researchers, and we hope that this Special Issue will act as a fitting way to honor such a prominent scientist.

Dr. Mikhail V. Chernyshov
Guest Editor

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Keywords

  • shock and blast waves
  • shock/blast interactions
  • regular/Mach reflection
  • shock focusing
  • shock wave systems
  • blast protection
  • supersonic jet flows
  • high supersonic flight
  • heat protection

Published Papers (2 papers)

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Research

20 pages, 3385 KiB  
Article
Simulation of Relaxation Processes in Hypersonic Flows with One-Temperature Non-Equilibrium Model
by Anton Karpenko, Semen Tolstoguzov and Konstantin Volkov
Fluids 2023, 8(11), 297; https://doi.org/10.3390/fluids8110297 - 10 Nov 2023
Viewed by 1174
Abstract
Steady-state one-dimensional flows of five-component air behind a normal shock wave are considered with a one-temperature model. A mathematical model is formulated to describe the relaxation of a five-component air mixture with a one-temperature non-equilibrium approximation. A numerical study of non-equilibrium flows of [...] Read more.
Steady-state one-dimensional flows of five-component air behind a normal shock wave are considered with a one-temperature model. A mathematical model is formulated to describe the relaxation of a five-component air mixture with a one-temperature non-equilibrium approximation. A numerical study of non-equilibrium flows of a reacting five-component air mixture behind shock waves at different heights and velocities of free flow is performed. The contribution of different types of reactions to the overall relaxation of the mixture is discussed, and the distributions of macro-parameters of the flow behind the shock wave front are calculated. The lengths of the relaxation zones behind the shock wave front are compared at different initial conditions. Calculations are performed for the standard model of atmosphere. Full article
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14 pages, 2444 KiB  
Article
Grid-Characteristic Method for Calculation of Discontinuous Non-Steady Flows of a Multicomponent Reacting Gas in Channels
by Vladimir Gidaspov and Natalia Severina
Fluids 2023, 8(10), 265; https://doi.org/10.3390/fluids8100265 - 27 Sep 2023
Viewed by 986
Abstract
This paper is devoted to the description of computational algorithms for modeling quasi-one-dimensional non-steady flows of a multicomponent reacting gas. The particularity of the developed modeling technique is that the paths of strong and weak discontinuities are mobile computational nodes, and the parameters [...] Read more.
This paper is devoted to the description of computational algorithms for modeling quasi-one-dimensional non-steady flows of a multicomponent reacting gas. The particularity of the developed modeling technique is that the paths of strong and weak discontinuities are mobile computational nodes, and the parameters for them are calculated using special algorithms. A set of programs has been developed, which can be used to solve the problems of the reacting gas dynamics that are of applied importance, as well as serve as an illustrator for physical gas dynamics training courses. The paper provides the results of the numerical modeling of the supersonic flow in a flat channel simulating the operation of experimental facilities of the Institute for Problems in Mechanics and the Institute of Physics and Technology. A satisfactory correlation between the calculated and experimental data has been obtained. Full article
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