CFD investigation of structural effects of internal gas intake on powder conveying performance in fuel supply systems for aerospace engines

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外文摘要：Optimal design of gas intake in powder fuel supply systems is crucial for performance of aerospace engines.There is little research on the impact of intake structure on powder conveying performance.Three novel internal intakes were proposed,which are spherical,cube-shaped,and dome-shaped.After validation,CFD simulations demonstrate that fluctuation of mass flow rate of powders in the dome-shaped intake is reduced by about 73.3％compared with the annular external one.Variation trends of phase velocities are similar for the spherical and cube-shaped intakes,while those are similar for the annular external and dome-shaped internal intakes.Fluctuation of area of gas zone for the annular external and spherical internal intakes is larger than that for the cube-shaped and dome-shaped internal intakes.Pressure and relative pressure drop in the fluidization chamber have a stable stage,and fluc-tuation of relative pressure drop is small when dome-shaped internal intake is used.

外文关键词：

Powder supply systemIntake structureDense gas-solid flowTwo-fluid modelPowder fluidizationPressure drop

作者：

Guanlong Ren、Haijun Sun、Fangjun Chen、Wen Shen、Yunzhen Cai、Yihua Xu、Henrik Str?m、Bilainu Oboirien、Qingang Xiong

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作者单位：

School of Aircraft Engineering,Nanchang Hangkong University,Nanchang,330063,China

Engineering Research Center of Aero-engine Technology for General Aviation,Ministry of Education,Nanchang,330063,China

State Key Laboratory of Pulp and Paper Engineering,South China University of Technology,Guangzhou,510640,China

Department of Mechanics and Maritime Sciences,Chalmers University of Technology,Göteborg,412 96,Sweden

Department of Chemical Engineering,University of Johannesburg,Johannesburg,17011,South Africa

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基金：

National Natural Science Foundation of ChinaAeronautical Science Foundation of China

项目编号：

1210216120200001056001

出版年：

2024

DOI：

10.1016/j.partic.2024.04.016

颗粒学报(英文版)

中国颗粒学会　中国科学院过程工程研究所

颗粒学报(英文版)

CSTPCD

影响因子：0.632

ISSN：1674-2001

年,卷(期)：2024.92(9)