Mathematical Modeling of the Interaction of a Single Supersonic Jet With Obstacles

In this paper the mathematical modeling of the interaction of a twin supersonic jet with a flat obstacle in Mars environment and Mach numbers at the nozzle exit 4.5 are considered. The effect of the distance between the nozzles on the shock-wave structure of the jets and their force on obstacle are investigated. The distance ranged from 0.1 to 4 nozzle exit diameters (L/D). It is found that the self-oscillating mode is observed only for the case L/D = 1.5, for the rest of the cases the stationary mode are implemented. With an increase in the distance between the nozzles, the maximum pressure on obstacle decreases from 33 kPa to 13 kPa. In the case when the plumes do not close L/D = 4, the force effect of the jets is 2.5 times less compared to L/D = 0.1.

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Simulation of non-stationary gas dynamics of solid propellant rockets launch

Kostyushin

Kagenov

Eremin

et al. 2021

J. Phys.: Conf. Ser.

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The article presents the results of the development of methodology for the calculation of non-stationary gas dynamics processes occurring in gas dynamic paths of rocket engines and environment at the launch of rockets. The method takes into account the change of geometry of solid fuel combustion surface during the operation of the engine and the change in the geometry of the computational domain taking into account the dynamics of rocket launch. Numerical simulation of gas-dynamic processes of the launch of model solid-fuel rocket was done. The unsteady gas-dynamic flow pattern was investigated. The pressure curve in the solid propellant rocket engine combustion chamber, the speed of movement and overload were determined.

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Mathematical Modeling of the Interaction of a Single Supersonic Jet With Obstacles

Cited by 4 publications

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Numerical investigation of the interaction of twin supersonic jet with a flat obstacle

Numerical investigation of the interaction of twin supersonic jet with a flat obstacle

Simulation of multiple supersonic jets impinging with obstacle

Simulation of non-stationary gas dynamics of solid propellant rockets launch

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