Characteristics of pulse detonation engine versus ramjet characteristics |
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Authors: | A J Egoryan A N Kraiko K S P’yankov A P Tishin |
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Institution: | 1.Central Institute of Aviation Motors by P.I. Baranov,Moscow,Russia;2.TESIS Ltd.,Moscow,Russia |
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Abstract: | We discuss the method of comparing pulse detonation engines (PDE) and engines with combustion in subsonic flow (ramjet) by means of their specific impulse used by the “Center of Pulse-Detonation Combustion” (CPDC). We demonstrate that the method used by CPDC to calculate the performance of PDE overstates the value of specific impulse relative to its actual value by a factor of at least two. In contrast, the values of specific impulse for ramjet are understated. As a result, the specific impulse of PDE significantly exceeds that of ramjet or is close to it. We investigate these misleading conclusions, and demonstrate their complete failure. |
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