Multiphase Effects on Solid Rocket Nozzle Performance

IF 1.7 4区工程技术 Q2 ENGINEERING, AEROSPACE

Journal of Propulsion and Power Pub Date : 2023-05-26 DOI:10.2514/1.b39096

M. Grossi, Alessio Sereno, D. Bianchi, B. Favini

引用次数: 0

Abstract

In the present work, we discuss the employment of a computational fluid dynamics approach to evaluate the specific impulse of solid rocket motors. Particular care is focused on two-phase flow and divergence losses, which represent the most important contributions to the overall nozzle performance loss. A comprehensive parametric study is performed on the Zefiro 9A nozzle with the aim to evaluate the detrimental influence of relevant key features, such as alumina particle dimension, polydispersion, crystallization, and motor operating conditions. The capability of the present model to represent, with good accuracy, the overall performance of solid rocket motors is demonstrated by comparing the experimental specific impulse of several motors with numerical predictions.

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多相效应对固体火箭喷嘴性能的影响

在目前的工作中，我们讨论了使用计算流体动力学方法来评估固体火箭发动机的比冲。特别注意的是两相流和发散损失，这是对喷嘴整体性能损失的最重要贡献。对Zefiro 9A喷嘴进行了全面的参数研究，旨在评估相关关键特征的有害影响，如氧化铝颗粒尺寸、多分散、结晶和电机操作条件。通过将几种发动机的实验比冲与数值预测进行比较，证明了本模型能够以良好的精度表示固体火箭发动机的整体性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Propulsion and Power 工程技术-工程：宇航

CiteScore

4.20

自引率

21.10%

发文量

审稿时长

6.5 months

期刊介绍： This Journal is devoted to the advancement of the science and technology of aerospace propulsion and power through the dissemination of original archival papers contributing to advancements in airbreathing, electric, and advanced propulsion; solid and liquid rockets; fuels and propellants; power generation and conversion for aerospace vehicles; and the application of aerospace science and technology to terrestrial energy devices and systems. It is intended to provide readers of the Journal, with primary interests in propulsion and power, access to papers spanning the range from research through development to applications. Papers in these disciplines and the sciences of combustion, fluid mechanics, and solid mechanics as directly related to propulsion and power are solicited.