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

被引：2

作者：

Ren, Guanlong ^{[1
,2
,3
]}

Sun, Haijun ^{[1
,2
]}

Chen, Fangjun ^{[3
]}

Shen, Wen ^{[1
,2
]}

Cai, Yunzhen ^{[1
,2
]}

Xu, Yihua ^{[1
,2
]}

Strom, Henrik ^{[4
]}

Oboirien, Bilainu ^{[5
]}

Xiong, Qingang ^{[3
]}

机构：

[1] Nanchang Hangkong Univ, Sch Aircraft Engn, Nanchang 330063, Peoples R China

[2] Engn Res Ctr Aeroengine Technol Gen Aviat, Minist Educ, Nanchang 330063, Peoples R China

[3] South China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Peoples R China

[4] Chalmers Univ Technol, Dept Mech & Maritime Sci, S-41296 Gothenburg, Sweden

[5] Univ Johannesburg, Dept Chem Engn, Johannesburg 17011, South Africa

来源：

PARTICUOLOGY | 2024年 / 92卷

基金：

中国国家自然科学基金;

关键词：

Powder supply system; Intake structure; Dense gas-solid flow; Two-fluid model; Powder fluidization; Pressure drop; MASS-FLOW RATE; ALUMINUM POWDER; KINETIC-THEORY; FLUIDIZATION; SIMULATION; PRESSURE; MODEL;

D O I：

10.1016/j.partic.2024.04.016

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

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 domeshaped 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 fluctuation of relative pressure drop is small when dome-shaped internal intake is used. (c) 2024 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.

引用

页码：140 / 154

页数：15