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Effect of Spiral Turbulent Ring on Detonation Performances of Acetylene-Oxygen Mixtureстатья
- Авторы: Son Min, Seo Chanwoo, Lee Keon Woong, Koo Jaye, Smirnov N.N.
- Журнал: Journal of the Korean Society of Propulsion Engineers
- Том: 17
- Номер: 2
- Год издания: 2013
- Первая страница: 9
- Последняя страница: 15
- DOI: 10.6108/KSPE.2013.17.2.009
- Аннотация: An effect of a spiral turbulent ring, so-called Shchelkin spiral, on a detonation performance was studied experimentally for acetylene and oxygen mixture. A couple of dynamic pressure transducers were used to calculate a detonation wave velocity by a time difference between two pressure peaks. In addition, impulse was measured by a load cell and the impulse was used to analyze the spiral effect on the detonation performance. A CFD analysis was adopted to calculate mass flow rates of the propellants and the minimum filling time. The maximum velocity and pressure were measured at the equivalence ratio of 2.4, and the measured values showed similar trend to C-J conditions calculated from CEA. For the shorter chamber with the short spiral, the maximum detonation velocity was appeared. In contrast, the longer chamber without the spiral showed the maximum thrust performance.
- Добавил в систему: Стамов Любен Иванович