Continuous Spin Detonations

Results on controlled continuous spin detonation of various fuels in liquid-propellant rocket motors and ramjet combustors are reported. Schemes of chambers, combustion in transverse detonation waves, and typical photographic records of transverse detonation waves are given. The flow structure, existence conditions, and basic properties of continuous detonation are considered. An analysis of physical, chemical, and geometric parameters determining spin detonation is presented. Results of studying continuous spin detonation of C2H2+airC2H2+air and H2+airH2+air mixtures in an annular ducted chamber 30.6 cm in diameter are reported. The range of existence of continuous spin detonation in fuel-air mixtures is determined as a function of the governing parameters. In the case of high-quality mixing, the transverse detonation wave velocity and structure are extremely stable in a wide range of the ratios of propellant components and in the examined range of pressures in the chamber. [PUBLISHER ABSTRACT] Sergey Andreevich Zhdan, D.Sc., is currently a Professor and the Head of the Heterogeneous Systems Dynamics Laboratory at the M.A. Lavrentyev Institute of Hydrodynamics (LIH) of the Russian Academy of Sciences, Novosibirsk, Russia. Dr. Zhdan was born in 1950. In 1973 he graduated from the Novosibirsk State University, Mechanics and Mathematical Faculty, with the specialty of mechanics and applied mathematics. Dr. Zhdan received his Ph.D. in 1979, his D.Sc. in 1995, and became the head of the laboratory in 2002. He is a leading scientist in the mechanics of heterogeneous reacting mixtures, modeling of explosion, and pulse and rotating detonation. He has published more than 100 papers, reviews, and reports, and is a lecturer in the Novosibirsk State University. Dr. Zhdan is a member of the Academic Council of LIH and the Scientific Secretary of the Doctor Dissertation Council at LIH. Bykovskii Fedor Afanas'evich, D.Sc., is currently the Leading Researcher of the Heterogeneous Systems Dynamics Laboratory in the M.A. Lavrentyev Institute of Hydrodynamics (LIH) of the Russian Academy of Sciences, Novosibirsk, Russia. Dr. Afanas'evich was born in 1947. In 1972 he graduated from the Leningrad Polytechnical Institute, with the specialty of engineer electrician. Dr. Afanas'evich received his Ph.D. in 1984 and his D.Sc. in 2000. He is a leading scientist in the physics of detonation combustion of fuels and has published more than 60 papers, reviews, patents, and reports. Ved