鼻锥整流罩和尖顶对超音速钝体流动的影响

IF 1.3 4区工程技术 Q2 ENGINEERING, AEROSPACE

Journal of Spacecraft and Rockets Pub Date : 2023-11-20 DOI:10.2514/1.a35757

MD. G. Sarwar, Priyank Kumar, S. Das

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引用次数: 0

摘要

在马赫数为 2.0 时，对各种鼻锥整流罩体进行了实验和计算，这些鼻锥整流罩体带有[计算公式：见正文]的尖头和锥形尖头，以及具有不同[计算公式：见正文]比率的固定尖头位置的尖头。尝试通过采用尖头来改变各种鼻锥整流罩的流场。定性和定量测量研究表明，不仅半球形钝体，而且各种鼻锥整流罩上的变化都有助于减少阻力。本研究中测试的配置所产生的阻力减少表明了尖头和钝体表面之间区域的重要性。本文介绍的结果证明了再循环流的质量和数量及其对减少阻力的影响。

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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Influence of Nose Cone Fairing and Spike on Supersonic Blunt Body Flows

Experiments and computations were performed at Mach number 2.0 for various nose cone fairing bodies with a sharp spike and conical spike of [Formula: see text] and with a sharp spike having a fixed tip location of different [Formula: see text] ratios. Attempts were made to alter the flowfield of various nose cone fairing bodies with the adoption of the spike. Qualitative and quantitative measurement studies indicate the changes that support the reduction of drag forces, not only on hemispherical blunt bodies but also on various nose cone fairings. This drag reduction with the configurations tested in this study indicates the importance of the region between the spike and the blunt-body face. The results presented here justify the quality and quantity of recirculating flow and its implication for drag reduction.

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来源期刊

Journal of Spacecraft and Rockets 工程技术-工程：宇航

CiteScore

3.60

自引率

18.80%

发文量

185

审稿时长

4.5 months

期刊介绍： This Journal, that started it all back in 1963, is devoted to the advancement of the science and technology of astronautics and aeronautics through the dissemination of original archival research papers disclosing new theoretical developments and/or experimental result. The topics include aeroacoustics, aerodynamics, combustion, fundamentals of propulsion, fluid mechanics and reacting flows, fundamental aspects of the aerospace environment, hydrodynamics, lasers and associated phenomena, plasmas, research instrumentation and facilities, structural mechanics and materials, optimization, and thermomechanics and thermochemistry. Papers also are sought which review in an intensive manner the results of recent research developments on any of the topics listed above.