Analytical and numerical calculation of the detachment of particle structures from fibers
Analytical and numerical calculation of the detachment of particle structures from fibers
复制标题
颗粒结构与纤维分离的分析和数值计算
DOI:
10.1080/02786826.2021.1972085
复制
发表时间:
2021
影响因子:
5.2
通讯作者:
Janoske
中科院分区:
文献类型:
--
作者:
Braschke;Zoller;Zargaran;Dittler;Janoske
Not much research has been done on the detachment of deposit structures from fibers in gas flow. This study presents two approaches to determine the fluid velocitiesucrequired for detachment. The first is an analytical model based on the imbalance of drag and adhesive forces. With the help of available models in literature two curves forucas a function of deposit diameter were calculated. The two curves represent the different conditions present in a deposited structure, consisting of a mixture of reactive and inert matter, before and after reaction. It approximates the structure by one sphere, that consists of two identical half spheres, of which one detaches due to drag. The second approach is a CFD model, in which the deposited particle structure is represented through an immersed boundary method (IBM). It calculates adhesive forces based on the van der Waals force between two half-spaces, while drag is directly evaluated from flow properties at the structure’s surface. To be comparable with the analytical approach, it also approximates the deposit with two half spheres. The models are capable of describing detachment velocity behavior as a function of deposit structure size and porosity as reported in literature.Copyright © 2021 American Association for Aerosol Research
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影响因子:
5.2
作者:
SCHUBERT, H
通讯作者:
SCHUBERT, H
DOI:
--
发表时间:
1994
期刊:
影响因子:
--
作者:
D. Rimai;L. Demejo;R. Bowen
通讯作者:
R. Bowen
DOI:
--
发表时间:
1994
期刊:
影响因子:
--
作者:
S. Berbner;F. Löffler
通讯作者:
F. Löffler
影响因子:
1.4
作者:
Zoller, Julian;Zargaran, Amin;Dittler, Achim
通讯作者:
Dittler, Achim
DOI:
--
发表时间:
1971
期刊:
影响因子:
--
作者:
M. Singh;J. L. Gupta
通讯作者:
J. L. Gupta