Numerical and experimental analysis of fuel regression rate in a lab-scale hybrid rocket engine with swirl injection

被引：5

作者：

Migliorino, Mario Tindaro ^{[1
]}

Fabiani, Marco ^{[1
]}

Paravan, Christian ^{[2
]}

Bianchi, Daniele ^{[1
]}

Nasuti, Francesco ^{[1
]}

Galfetti, Luciano ^{[2
]}

Pellegrini, Rocco Carmine ^{[3
]}

Cavallini, Enrico ^{[3
]}

机构：

[1] Sapienza Univ Rome, Via Eudossiana 18, I-00184 Rome, Italy

[2] Politecn Milan, Via La Masa 34, I-20156 Milan, Italy

[3] Italian Space Agcy, Via Politecn Snc, I-00133 Rome, Italy

来源：

AEROSPACE SCIENCE AND TECHNOLOGY | 2023年 / 140卷

关键词：

Hybrid rockets; Swirl injection; Paraffin wax; ASYMPTOTIC-BEHAVIOR CORRELATIONS; PARAFFIN-BASED FUELS; HEAT-TRANSFER; THERMOPHYSICAL PROPERTIES; HOMOLOGOUS SERIES; GENERAL EQUATION; N-PARAFFINS; PERFORMANCE; FLOW; COMBUSTION;

D O I：

10.1016/j.ast.2023.108467

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

In this work the regression rate performance and flow physics of a lab-scale hybrid rocket engine burning gaseous oxygen and paraffin-based fuels are experimentally and numerically investigated. Regression rates are obtained by thickness-over-time averaging procedures and through a non-intrusive optical method enabling fuel grain port diameter tracking. A numerical rebuilding of the experimental data is performed with axisymmetric Reynolds-averaged Navier-Stokes simulations, using sub-models accounting for the effects of turbulence, chemistry, radiation, and fluid-surface interaction. Simulations are performed with different computational setups, also considering the fuel grain shape variation over time, obtaining a fairly good agreement between the numerical and experimental data. A parametric analysis is also performed to assess the variation of the fuel regression rate with swirl intensity.& COPY; 2023 Elsevier Masson SAS. All rights reserved.

引用

页数：13

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