Dreus A. J, Koshytska Y. S., Rusakova A. V.

Oles Honchar Dnipropetrovsk National University

THE MODELING OF PASTE-LIKE MISSILE FUEL THERMOEXCHANGE DURING ITS TRANSPORTATION TO THE COMBUSTION CHAMBER

Many developers of the missile and space equipment have paid their attention to paste-like fuel recently [1]. This type of fuel represents solidified paste consisting of the main components of modern rocket fuels which are mixed industrially in some order. The usage of paste-like fuel mass in space aircraft rocket engines allows to provide its repeated inclusion and draft regulation. Thus, such rocket engine is quite competitive with liquid rocket engines.

The project of using engine paste-like fuel has been developed in Oles Honchar Dnipropetrovsk National University [2]. During this research a number of the problems connected with processes of heat exchange in the engine has been occurred, such as the problem of fuel paste warming up and burning, while its transportation to the combustion chamber.

In this project the following processes have been considered: heat exchange processes in elements of full supplying system by means of methods of mathematical modeling .

The mathematical model consists of the energy equation for moving fuel paste with the corresponding boundary conditions. Taking into consideration that this paste represents non-Newtonian liquid, that means this is the liquid at which current its viscosity depends on a speed gradient. That is why the algorithm of calculation and numerical researches of temperature fields have been done.

As a result of mathematical modeling, the temperature fields in paste-like fuel transportation to the combustion chamber are received. Such data allows us to define rational modes of paste full transportation and burning for the prevention of various emergencies.

The list of references:

1. Бондаренко С. Г. Особенности отработки высотных ракетных двигательных установок пастообразного топлива с регулируемым вектором тяги / С. Г. Бондаренко, Н. Д. Коваленко // Авиационно-космическая техника и технология. – 2010. – № 4. – С. 84–90. 

2. Иванченко А. Н. Состояние разработки дросселируемых ракетных двигательных установок на унитарном пастообразном топливе / А. Н. Иванченко, С. Г. Бондаренко // Проблеми високотемпературної техніки. – С. 40–50.