A numerical study of the working process in the chamber of a thruster rocket engine based on oxygen-hydrogen fuel
Keywords:rocket engine, combustion chamber, simulation, turbulence, combustion, computational grid
The application of numerical simulation of mixture formation and combustion during the design of the chamber of a thruster rocket engine based on oxygen-hydrogen fuel allows one to rapidly develop a construction with high-power characteristics, which was later confirmed experimentally. This paper considers the results of computations obtained by using the turbulence models based on the hypothesis of turbulent viscosity and Reynolds stresses and using the chemical interaction models (the models of a thin flame front and the eddy dissipation). The numerical results obtained on the basis of computational grids of various types and dimensions are discussed. It is shown that the grid type has little effect on the simulation results and that the Reynolds stress model and the eddy dissipation model are preferable. The characteristics of the chamber obtained experimentally and numerically for various modes of operation are compared.
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