Study on Combustion Flow-Field of Solid Ducted Rocket with Multiple Gas Nozzles

The combustion mechanism, which consisting of 22 species and 23 reaction equations, and three discrete models such as inertia, combusting, modification droplet, are employed for the investigation of gas-solid combustion in magnesium-aluminum based propellant ducted rocket based on thermal performance calculation. And path lines, temperature distribution, sediments are discussed after the computing method is validated by direct-connect experimentation and the flow field information, which obtained by numerical method and coincided with currently conclusions. The results indicated that the proposed method is reliable and practicable.

Download Full-text

Feature-Section-Criterion for Predicting Lean Blowout and Comparison Research

Volume 2: Heat Transfer Enhancement for Practical Applications; Heat and Mass Transfer in Fire and Combustion; Heat Transfer in Multiphase Systems; Heat and Mass Transfer in Biotechnology ◽

10.1115/ht2013-17229 ◽

2013 ◽

Author(s):

Zhibo Zhang ◽

Hongtao Zheng ◽

Honglei Yang ◽

Ren Yang ◽

Qian Liu ◽

...

Keyword(s):

Experimental Data ◽

Flow Field ◽

New Method ◽

Engineering Applications ◽

Lean Blowout ◽

Comparison Research ◽

Annular Combustor ◽

Combustion Flow ◽

Feature Section

Lean blowout (LBO) plays an important role in combustor performance. A new method named Feature-Section-criterion (FSC) for predicting the LBO of annular combustor has been put forward and expounded in this paper. A CFD software FLUENT has been used to simulate the combustion flow field of an annular combustor. The process of blowout and effects of flow split among swirlers and primary holes have been researched by using of FSC. The result shows that the predictions of FSC are in agreement with corresponding experimental data. So this method for predicting lean blowout is reliable and can be used for engineering applications.

Download Full-text

Parametric effects on the combustion flow field of a typical strut-based scramjet combustor

Chinese Science Bulletin ◽

10.1007/s11434-011-4823-2 ◽

2011 ◽

Vol 56 (35) ◽

pp. 3871-3877 ◽

Cited By ~ 51

Author(s):

Wei Huang ◽

ZhenGuo Wang ◽

ShiBin Luo ◽

Jun Liu

Keyword(s):

Flow Field ◽

Scramjet Combustor ◽

Parametric Effects ◽

Combustion Flow

Download Full-text

Temperature measurement in combustion flow field with femtosecond laser-induced filament

Acta Physica Sinica ◽

10.7498/aps.69.20200939 ◽

2020 ◽

Vol 69 (23) ◽

pp. 234207

Author(s):

Shuai-Yao Li ◽

Da-Yuan Zhang ◽

Qiang Gao ◽

Bo Li ◽

Yong He ◽

...

Keyword(s):

Flow Field ◽

Femtosecond Laser ◽

Temperature Measurement ◽

Combustion Flow

Download Full-text

A Preliminary Calculation of the Combustion Recirculating Flow Behind Flame-Holders

Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels ◽

10.1115/85-igt-29 ◽

1985 ◽

Author(s):

C. F. Zeng ◽

J. X. Zhao ◽

Z. T. Ding

Keyword(s):

Flow Field ◽

Equivalence Ratio ◽

Variable Density ◽

Combustion Model ◽

Preliminary Calculation ◽

Flame Spreading ◽

Inlet Velocity ◽

Recirculating Flow ◽

Combustion Flow ◽

Recirculation Length

In this paper the numerical method is adopted to predict the combustion recirculating flow behind flame-holders. A modified k-ε turbulence model and Magnussen’s combustion model are employed. Becouse of the large variation of density in combustion flow field, the influences of variable density have been considered. The results predicted include: the combustion recirculating flow field and the flame spreading; the variation of recirculation length with equivalence ratio, and inlet velocity, etc. All of these are qualitatively good comparing with experimental results.

Download Full-text