| Autor: |
Svyatushenko, V. V., Yagodnikov, D. A., Rozanov, L. A., Fomin, Vasily, Shiplyuk, Alexander |
| Předmět: |
|
| Zdroj: |
AIP Conference Proceedings; 2020, Vol. 2351 Issue 1, p1-8, 8p |
| Abstrakt: |
This paper presents a mathematical model and code-implemented engineering calculation technique that allow to study workflow inside a ramjet's combustion chamber under dynamic variation of external and internal parameters: flight speed, angle of attack, and fuel mass flow rate. To assess adequacy of the mathematical model and the technique, a comparison is performed between results of internal ballistics calculations of a spaceplane's ramjet obtained by aforementioned mathematical model and by numerical simulation in a computational fluid dynamics software package. This is tested for cruise flight conditions and for dynamic variation of flight parameters and fuel mass flow rate in a wide range. It shows that for a model subsonic flow combustion chamber a satisfactory correlation between these solutions is realized. Transient processes are stable and monotonous for all cases studied, registered oscillations of total pressure and temperature in relation to their stabilized values and weak overshooting have no effect on the engine's output characteristics. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
