拉瓦尔喷嘴形状对推力产生的影响，使用特征法

Q2 Engineering

INCAS Bulletin Pub Date : 2024-03-11 DOI:10.13111/2066-8201.2024.16.1.8

A. -. I. Paraschiv

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引用次数: 0

摘要

本研究采用特征法研究了拉瓦尔喷嘴几何形状对推力产生的影响。它探索了各种发散截面配置，分析了它们对喷嘴设计和性能的影响。软件工具的比较分析、超音速流动现象的研究以及特性法的应用构成了本研究的核心。研究结果表明计算工具之间具有很强的一致性，强调了马赫数在发散截面形状变化和推力中的作用。此外，该研究还通过计算模拟验证了过度膨胀和膨胀不足现象。未来的研究应着眼于加强计算方法和调查影响喷嘴性能的其他参数，从而有望推动火箭推进技术的进步。

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The impact of the Laval nozzle shape on thrust production, using the method of characteristics

This investigation examines the influence of Laval nozzle geometry on thrust production using the method of characteristics. It explores various divergent section configurations, analyzing their impact on nozzle design and performance. Comparative analysis of software tools, study of supersonic flow phenomena, and application of the method of characteristics form the core of this research. Findings showcase strong agreement between computational tools, emphasizing the Mach number's role in divergent section shape variations and thrust force. Additionally, the study scrutinizes over-expansion and under-expansion phenomena, validated through computational simulations. Future research should be aimed at enhancing computational methodologies and investigating additional parameters affecting nozzle performance, promising advancements in rocket propulsion technology.

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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.