Investigation of the effect of the ejector on the performance of the pulse detonation engine nozzle extension

30th International Conference on Interaction of Intense Energy Fluxes with Matter

Korobov, A.E.^1 ; Golovastov, S.V.^1

Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13, Moscow

125412, Russia^1

关键词: Axisymmetric modeling;    Detonation tubes;    Finite difference scheme;    Hydrogen-oxygen mixtures;    Initial conditions;    Numerical investigations;    Numerical results;    Pulse detonation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/653/1/012065/pdf
DOI  :  10.1088/1742-6596/653/1/012065

来源: IOP

【 摘 要 】

Influence of an ejector nozzle extension on gas flow at a pulse detonation engine was investigated numerically and experimentally. Detonation formation was organized in stoichiometric hydrogen-oxygen mixture in cylindrical detonation tube. Cylindrical ejector was constructed and mounted at the open end of the tube. Thrust, air consumption and parameters of the detonation were measured in single and multiple regimes of operation. Axisymmetric model was used in numerical investigation. Equations of Navies-Stokes were solved using a finite-difference scheme Roe of second order of accuracy. Initial conditions were estimated on a base of experimental data. Numerical results were validated with experiments data.