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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.28 SNIP: 0.421 CiteScore™: 0.9

ISSN Druckformat: 2150-766X
ISSN Online: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v1.i1-6.180
pages 241-250

A Study of Drag Reduction by Base Bleed at Subsonic Speeds

Zeshong Ding
East China Institute of Technology, Nanjing, PRC
Yafei Liu
East China Institute of Technology, Nanjing, PRC
Shaosong Chen
East China Institute of Technology, Nanjing, PRC

ABSTRAKT

This paper presents the experimental research results of the drag reduction rate of the base bleed of solid fuel-rich propellent column at subsonic speeds. The experimental range of Mach number was from 0.6 to 0.98. Experiments show that the base drag can be removed by the base bleed of propellent column under the range of M = 0.6−0.8. The Bowman-Clayden's empirical formula, which was widely used, is not applicable in this speed range.


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