MATHEMATICAL MODELING

Numerical three-dimensional modeling of detonation wave rotation in a detonaton engine

Yu. G. Phyilippov^a, V. F. Nikitin^ab, E. V. Mikhalchenko^ba, L. I. Stamov<sup>ab

a</sup> Lomonosov Moscow State University, Moscow, Russia
^b Federal Science Center Scientific Research Institute for System Analysis of Russian Academy of Sciences, Moscow, Russia

Abstract: A three-dimensional numerical simulation of the combustion chamber of the engine with a rotating detonation wave (RDE) fed by hydrogen-air mixtures of different composition is carried out. A rotating detonation wave engine is a new type of engine capable of producing higher thrust than traditional engines based on the process of deflagration of a combustible mixture. The dynamic combustion process in RDE is more than 100 times faster than in the classical mode with slow deflagration combustion. This type of engine has a more efficient thermodynamic cycle. In numerical experiments, different compositions of the fuel mixture were tested, and different scenarios of the engine operation were obtained. In the computational domain, a regular grid of homogeneous cubic elements was used. Time-consuming parts of the numerical code were parallelized using the OpenMP technique. Calculations were carried out on the APK-5 with a maximum performance of 5.5 teraflops.

Keywords: numerical simulation, detonation engine, chemical kinetics, deflagration, detonation, combustion chamber.

DOI: 10.14357/20718632190308