In:
Perm National Research Polytechnic University Aerospace Engineering Bulletin, PNRPU Publishing House, , No. 60 ( 2020), p. 55-63
Abstract:
A solid-fuel rocket engine is a complex technical system in which a number of interrelated non – stationary and substantially nonlinear physical and chemical processes simultaneously occur. The type of SFRE under consideration has its own problems and design features. To optimize the parameters of a rocket engine, we study the dynamics of its internal processes. The research method is to set up a computational experiment. We consider the conjugate statement of the problem, which includes: triggering of the ignition device; – heating, ignition and subsequent unsteady and turbulent combustion of the powder charge; – unsteady threedimensional shock wave and a vortex of homogeneous-heterogeneous flow of air and products of combustion in the combustion chamber, nozzle block and launchers unit; – depressurization of the combustion chamber and the subsequent departure of the stub nozzle block. Each of the subtasks is considered in a relationship and resolved simultaneously - at a single time step. As a result of researches it is established that when triggered, the solid-propellant in the combustion chamber is implemented by an abnormal process associated with the segregation of the combustion mode of multi-turret powder charge. The results of numerical calculations are presented, on the basis of which constructive measures are developed to eliminate this undesirable effect.
Type of Medium:
Online Resource
ISSN:
2224-9982
Uniform Title:
ЧИСЛЕННОЕ ИССЛЕДОВАНИЕ ДИНАМИКИ ВНУТРИКАМЕРНЫХ ПРОЦЕССОВ В РАКЕТНОМ ДВИГАТЕЛЕ ДЛЯ МОБИЛЬНЫХ КОМПЛЕКСОВ С МНОГОШАШЕЧНЫМ ПОРОХОВЫМ ЗАРЯДОМ
DOI:
10.15593/2224-9982/2020.60.06
Language:
Unknown
Publisher:
PNRPU Publishing House
Publication Date:
2020
