Abstract
A 2D-3D computational model for calculating a flow inside jet injectors that feed fuel components to a combustion chamber of a liquid rocket engine is described. The model is based on the gasdynamic calculation of compressible medium. Model software provides calculation of both one- and two-component injectors. Flow simulation in two-component injectors is realized using the scheme of separate supply of “gas-gas” or “gas-liquid” fuel components. An algorithm for converting a continuous liquid medium into a “cloud” of drops is described. Application areas of the developed model and the results of 2D simulation of injectors to obtain correction factors in the calculation formulas for fuel supply are discussed.
Highlights
Fuel is supplied to a mixing chamber by means of injectors
A uniform distribution of fuel components over the combustion chamber volume in the case of application of two-component injectors is provided by their design
It can be used in designing injectors for parametric calculations. This will allow one to more accurately determine sizes and parameters of designed injectors in comparison with analytical approximation calculations. This simulation makes it possible to investigate the flow features of fuel components within the unsteady flow regime and how it is influenced by gas parameter pulsations in the combustion chamber
Summary
- Natural oscillations of a gas in an elongated combustion chamber S V Nesterov, L D Akulenko and V G Baydulov. - Optimal design of a combustion chamber of gas turbine engine by a Combustion chamber 1D-2D computer program Y B Aleksandrov and B G Mingazov. - Modeling of atomization and distribution of drop-liquid fuel in unsteady swirling flows in a combustion chamber and free space A A Sviridenkov, P D Toktaliev and V V Tretyakov.
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