@inproceedings{110a718853544fe38e66815a8182d0d6,
title = "Pintle Injector Performance and Flow Field Sensitivity to the Skip Distance Ratio",
abstract = "To investigate the influence of the Skip Distance Ratio (SDR) on the flow field and thrust performance of a thrust chamber, a three-dimensional liquid-liquid rocket combustor with a continuous slit pintle injector was studied. An Eulerian-Lagrangian framework was adopted, treating the combustion gas as the continuous phase and both MMH and NTO droplets as the discrete phase. A Discrete Particle Method (DPM) with finite-rate chemistry was employed to model droplet injection, evaporation, and combustion. Numerical simulations revealed three distinct recirculation zones within the thrust chamber: the mantle, core, and outlet recirculation zones. Analysis of vortex distribution and thrust performance at different SDR values showed that changes in propellant injection position affect the recirculation zone distribution, thereby influencing propellant mixing. The thrust chamber demonstrated optimal performance when SDR = 0.8.",
keywords = "Liquid rocket engine, numerical simulations, Pintle injector, recirculation zones, Skip distance ratio, thrust performance",
author = "Hao Zhang and Fan Zhao and Zhang, \{Hai Bin\} and Bai, \{Bo Feng\}",
note = "Publisher Copyright: {\textcopyright} The Author(s), under exclusive license to Springer Nature Switzerland AG 2026.; 31st International Conference on Computational and Experimental Engineering and Sciences, ICCES 2025 ; Conference date: 25-05-2025 Through 29-05-2025",
year = "2026",
doi = "10.1007/978-3-032-17313-3\_81",
language = "英语",
isbn = "9783032173126",
series = "Mechanisms and Machine Science",
publisher = "Springer Science and Business Media B.V.",
pages = "1044--1054",
editor = "Xiqiao Feng and Kun Zhou",
booktitle = "Computational and Experimental Simulations in Engineering - Proceedings of ICCES 2025",
}