最小喷嘴长度火箭发动机的跨音速流场分析

Q2 Engineering

INCAS Bulletin Pub Date : 2024-06-10 DOI:10.13111/2066-8201.2024.16.2.1

O. Abada, H. Kbab, S. Haif

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引用次数: 0

摘要

本文的目的是开发一种轴对称最小长度喷嘴剖面，在出口部分提供均匀的平行流。研究是在高温条件下进行的，温度低于分子的解离阈值。设计采用了特性法（MOC）。考虑了比热随温度的变化。数值结果已通过 CFD 仿真 Ansys-Fluent 软件进行了验证。本研究的第二部分是计算和分析该超音速喷嘴的跨音速流场。因此，喉部流场特性的计算对于喷嘴的推力值以及飞机或火箭的推力至关重要。研究分析了参数对声波线位置的影响。这些参数包括停滞温度 T0、喷嘴半径、气体类型和出口马赫数 ME。

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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Transonic Flow Field Analysis of a Minimum Nozzle Length Rocket Engine

The aim of this paper is to develop a profile of axisymmetric minimum length nozzle giving a uniform and parallel flow at the exit section. The study is done at high temperature, lower than the dissociation threshold of the molecules. The design is made by the method of characteristics (MOC). The variation of the specific heats with the temperature is considered. The numerical results have been validated with CFD simulation Ansys-Fluent software. The second part of this study is to calculate and analyze the transonic flow field of this supersonic nozzle. The computation of the flow field characteristics at the throat is thus essential to the nozzle developed thrust value and therefore to the aircraft or rocket it propels. An investigation was conducted to analyze the effects of parameters on the position of the sonic line. These parameters include stagnation temperature T0, radius of the nozzle, types of gases, and exit Mach number ME.

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来源期刊

INCAS Bulletin Engineering-Aerospace Engineering

自引率

0.00%

发文量

审稿时长

8 weeks

期刊介绍： INCAS BULLETIN is a scientific quartely journal published by INCAS – National Institute for Aerospace Research “Elie Carafoli” (under the aegis of The Romanian Academy) Its current focus is the aerospace field, covering fluid mechanics, aerodynamics, flight theory, aeroelasticity, structures, applied control, mechatronics, experimental aerodynamics, computational methods. All submitted papers are peer-reviewed. The journal will publish reports and short research original papers of substance. Unique features distinguishing this journal: R & D reports in aerospace sciences in Romania The INCAS BULLETIN of the National Institute for Aerospace Research "Elie Carafoli" includes the following sections: 1) FULL PAPERS. -Strength of materials, elasticity, plasticity, aeroelasticity, static and dynamic analysis of structures, vibrations and impact. -Systems, mechatronics and control in aerospace. -Materials and tribology. -Kinematics and dynamics of mechanisms, friction, lubrication. -Measurement technique. -Aeroacoustics, ventilation, wind motors. -Management in Aerospace Activities. 2) TECHNICAL-SCIENTIFIC NOTES and REPORTS. Includes: case studies, technical-scientific notes and reports on published areas. 3) INCAS NEWS. Promote and emphasise INCAS technical base and achievements. 4) BOOK REVIEWS.