Effect of Rocket Engine Jet Flow with Water Injection on Air-flow Exhaust of Gas-flow-guided Channel

doi:10.3969/j.issn.1000-1093.2017.01.013

Abstract

Abstract: To study the influence of rocket engine jet flow with water injection on the gas-flow exhaust of gas-flow-guided channel, the scaled models of rocket engine and gas-flow-guided channel are designed, by which the mooring ignition and water injection are tested. The results show that the temperature of mixed gas in the gas-flow-guided channel could be decreased to half of the original temperature. The cooling effect is obvious. However, a large amount of water vapor is generated and enters into the gas-flow-guided channel after mixing with combustion gas, thus influencing the exhaust of combustible air-flow. A numerical model based on the Mixture multiphase flow model is established. The interphase heat and mass transfer equations are added into the unsteady gas-liquid two-phase flow field model . The comparison of calculated data with experimental data shows that the proposed model has higher calculation accuracy and reliability，and the interaction of gas and liquid flow fields and its influence on the patency of gas-flow-guided channel are clearly shown. For further study, the influences of the number of nozzles and the type of surface curve are analyzed. Key

Key words: ordnancescienceandtechnology, jetflow, waterinjection, two-phaseflow, gasflow-guidedchannel, numericalsimulation

CLC Number:

TJ768.2⁺4

WANG Shu-man, MA Yi-qing, YU Shao-zhen. Effect of Rocket Engine Jet Flow with Water Injection on Air-flow Exhaust of Gas-flow-guided Channel[J]. Acta Armamentarii, 2017, 38(1): 97-105.

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第38卷
第1期2017 年1月兵工学报ACTA
ARMAMENTARIIVol.38No.1Jan.2017

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