Abstract
The paper analyses the possibilities of using the ANSYS CFX hydrocode to simulate the flow and mixing of working bodies in the mixer and combustion chamber of a low-thrust liquid propellant rocket engine in the thrust range of 10 to 15 N. We built our models around solving Reynolds-averaged Navier — Stokes equations stated for three types of multiphase multicomponent incompressible fluid flow: a two-phase two-component two-velocity flow model; a two-phase two-component single-velocity flow model; a three-phase three-velocity flow model. We consider the advantages and disadvantages of each model. We compare our simulation results to the results of measurements conducted during hydraulic testing of mixers.
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