Theoretical investigation on submicron particle penetration through circular tubes inside a porous medium

Particuology ◽  
2022 ◽  
Author(s):  
Yanrong Yu ◽  
Yongwei Gao ◽  
Yanming Kang
Keyword(s):  
Porous Medium ◽  
Theoretical Investigation ◽  
Submicron Particle ◽  
Circular Tubes ◽  
Particle Penetration

Evaluation of Nano- and Submicron Particle Penetration through Ten Nonwoven Fabrics Using a Wind-Driven Approach

2011 ◽  
Vol 8 (1) ◽  
pp. 13-22 ◽  
Author(s):  
Pengfei Gao ◽  
Peter A. Jaques ◽  
Ta-Chih Hsiao ◽  
Angie Shepherd ◽  
Benjamin C. Eimer ◽  
...  
Keyword(s):  
Submicron Particle ◽  
Nonwoven Fabrics ◽  
Particle Penetration

Natural convection of a nanofluid-filled circular enclosure partially saturated with a porous medium using ISPH method

2020 ◽  
Vol 30 (11) ◽  
pp. 4909-4932 ◽  
Author(s):  
Abdelraheem M. Aly
Keyword(s):  
Heat Transfer ◽  
Porous Medium ◽  
Fluid Flow ◽  
Natural Convection ◽  
Porous Layer ◽  
Outer Region ◽  
Resistance Force ◽  
Content Type ◽  
Particle Penetration ◽  
Flow And Heat Transfer

Purpose The purpose of this study is to simulate the natural convection of a heated square shape embedded in a circular enclosure filled with nanofluid using an incompressible smoothed particle hydrodynamics (ISPH) method. Design/methodology/approach In the ISPH method, the evaluated pressure was stabilized by using a modified source term in solving the pressure Poisson equation. The divergence of the velocity was corrected, and the dummy particles were used to treat the rigid boundary. Dummy wall particles were initially settled in outer layers of the circular enclosure for preventing particle penetration and reducing the error of truncated kernel. The circular enclosure was partially filled with a porous medium near to the outer region. The single-phase model was used for the nanofluid, and the Brinkman–Forchheimer-extended Darcy model was used for the porous medium. Dummy wall particles were initially settled in outer layers of circular enclosure for preventing particle penetration and reducing error from the truncated kernel on the boundary. Findings The length of the inner square shape plays an important role in enhancing the heat transfer and reducing the fluid flow inside a circular enclosure. The porous layer represents a resistance force for the fluid flow and heat transfer, and, consequently, the velocity field and temperature distributions are reduced at the outer region of the circular cylinder. Then, the radius of the inner square shape, Darcy parameter and radius of the porous layer were considered the main factors for controlling the fluid flow and heat transfer inside a circular enclosure. The average Nusselt number decreases as the inner square length, radius of the porous layer and solid volume fraction increase. Originality/value The stabilized ISPH method is corrected for simulating the natural convection from an inner hot square inside a nanofluid-filled circular enclosure saturated with a partial layer of a porous medium.

Expansion of circular tubes by rigid tubes as impact energy absorbers: experimental and theoretical investigation

2007 ◽  
Vol 12 (5) ◽  
pp. 493-501 ◽  
Author(s):  
M Shakeri ◽  
S Salehghaffari ◽  
R. Mirzaeifar
Keyword(s):  
Theoretical Investigation ◽  
Impact Energy ◽  
Circular Tubes ◽  
Energy Absorbers

Bacterial sedimentation through a porous medium

1996 ◽  
Vol 22 ◽  
pp. 152
Author(s):  
W Jiamin
Keyword(s):  
Porous Medium

THEORETICAL INVESTIGATION OF ISOMER SHIFTS IN Fe, FeAl, FeTi AND FeCo

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-101-C8-102
Author(s):  
P. Blaha ◽  
K. Schwarz
Keyword(s):  
Theoretical Investigation

Theoretical Investigation of Concrete Beams Reinforced with Steel and Fiber Reinforced Polymer Bars

2017 ◽  
Author(s):  
Besian Sianani ◽  
Metin Hakan Severcan ◽  
Ilker Fatih Kara
Keyword(s):  
Theoretical Investigation ◽  
Concrete Beams ◽  
Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Reinforced Polymer
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