Technical Approach to Evaluating the Loss in Rocket Motor Specific Impulse Due to Discontinuity of the Nozzle Block Contour
| Autor: | V. S. Popov, Yu. S. Solomonov, A. N. Klyuchnikov, Yu. M. Milekhin, G. V. Burskii |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Physics
General Chemical Engineering Nozzle General Physics and Astronomy Energy Engineering and Power Technology General Chemistry Mechanics Rocket motor Physics::Fluid Dynamics Fuel Technology Combustion products Physics::Space Physics Entropy (information theory) Oblique shock Supersonic speed Specific impulse Solid-fuel rocket |
| Zdroj: | Combustion, Explosion, and Shock Waves. 46:593-598 |
| ISSN: | 1573-8345 0010-5082 |
| DOI: | 10.1007/s10573-010-0078-5 |
| Popis: | A methodical approach to evaluating the loss in rocket motor specific impulse due to discontinuity of the contour of the supersonic part of the nozzle block is developed based on calculating the parameters of the nonisentropic flow of combustion products. The increase in entropy is a consequence of flow deflection and the occurrence of oblique shocks in the zone of contour junction. The magnitude of the loss is determined by the energy expended in increasing the entropy when the flow passes through a shock and is obtained using the equation of the Hugoniot adiabat. The loss in specific impulse was calculated for various discontinuity parameters of the nozzle contour of a hypothetical solid rocket motor. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|