scholarly journals Computational Analysis of Non-Spherical Particle Transport and Deposition in Shear Flow With Application to Lung Aerosol Dynamics—A Review

2013 ◽  
Vol 135 (2) ◽  
Author(s):  
Clement Kleinstreuer ◽  
Yu Feng
Keyword(s):  
Shear Flow ◽  
Modeling And Simulation ◽  
Air Pollutants ◽  
Computational Analysis ◽  
Solid Particles ◽  
Nonspherical Particles ◽  
Blood Constituents ◽  
Aerosol Dynamics ◽  
Naturally Occurring ◽  
Inhaled Aerosols

All naturally occurring and most man-made solid particles are nonspherical. Examples include air-pollutants in the nano- to micro-meter range as well as blood constituents, drug particles, and industrial fluid-particle streams. Focusing on the modeling and simulation of inhaled aerosols, theories for both spherical and nonspherical particles are reviewed to analyze the contrasting transport and deposition phenomena of spheres and equivalent spheres versus ellipsoids and fibers.

Flow driven vesicle unbinding under mechanosensitive adhesion

Soft Matter ◽  
2022 ◽  
Author(s):  
Mohd Suhail Rizvi ◽  
Alexander Farutin ◽  
Chaouqi Misbah
Keyword(s):  
Shear Flow ◽  
Blood Constituents ◽  
Primary Mode

Ligand receptor based adhesion is the primary mode of interaction of cellular blood constituents with the endothelium. These adhered entities also experience shear flow imposed by the blood which may...

Aerosol dynamics and the synthesis of fine solid particles

2004 ◽  
Vol 139 (3) ◽  
pp. 193-199 ◽  
Author(s):  
Rajdip Bandyopadhyaya ◽  
Anshuman A. Lall ◽  
Sheldon K. Friedlander
Keyword(s):  
Solid Particles ◽  
Aerosol Dynamics

Vague language in Hong Kong English, ‘Something like that’

English Today ◽  
2019 ◽  
pp. 1-13
Author(s):  
Patrice Quammie–Wallen
Keyword(s):  
Hong Kong ◽  
Computational Analysis ◽  
Language Variety ◽  
Naturally Occurring ◽  
N Gram ◽  
Lexical Bundle ◽  
Vague Language ◽  
Hong Kong English

The computational analysis of corpora, a body of ‘naturally occurring language texts chosen to characterize a state of variety of a language’ (Sinclair, 1991: 171) provided the opportunity to reveal otherwise unobservable features and patterns across varieties, registers and languages. One such language feature is a ‘lexical bundle’ otherwise known as an n-gram. Vague terms in any language variety can often present themselves in the form of not just individual words (e.g. things, plenty, scores, stuff) but as a group of words that tend to co-occur: a lexical bundle (e.g. loads of, stuff like that, and so on, or what have you). In this paper, the function in Hong Kong English (HKE) of the vague n-gram ‘something like that’ will be explored via corpus methodology to account for its observed hyper-usage in Hong Kong society.

Migration of solid particles perpendicular to a local shear flow dueto local instabilities

AIAA Journal ◽  
1987 ◽  
Vol 25 (7) ◽  
pp. 1016-1018 ◽  
Author(s):  
M. Fichman ◽  
D. Pnueli
Keyword(s):  
Shear Flow ◽  
Solid Particles ◽  
Local Shear

scholarly journals Contact problems for particles in a shear flow

2010 ◽  
pp. 513-531
Author(s):  
Nicolas Verdon ◽  
Aline Lefebvre-Lepot ◽  
Laurent Lobry ◽  
Patrice Laure
Keyword(s):  
Shear Flow ◽  
Stokes Equations ◽  
Contact Problems ◽  
Numerical Approach ◽  
Solid Particles ◽  
Fictitious Domain ◽  
Particle Model ◽  
Fictitious Domain Method ◽  
2D And 3D ◽  
Number Of Particles

This paper focuses on improving the description of the contact between solid particles in a fluid flow. The numerical approach used is related to the fictitious domain method for the fluid–solid problem. It is associated to a gluey particle model in order to improve the behaviour of the particles during their contacts as a Lagrangian method is applied for their displacement. The numerical methodology is validated through 2D and 3D computations describing interactions of two particles in a shear flow. The results obtained show the ability of the scheme to recover the reversibility of the Stokes equations, even for 3D configurations. Finally, another example is studied with larger number of particles.

scholarly journals Computational analysis of thermal energy distribution of electromagnetic Casson nanofluid across stretched sheet: Shape factor effectiveness of solid-particles

2021 ◽  
Vol 7 ◽  
pp. 7460-7477
Author(s):  
Syed M. Hussain ◽  
Wasim Jamshed ◽  
Vivek Kumar ◽  
Vikash Kumar ◽  
Kottakkaran Sooppy Nisar ◽  
...  
Keyword(s):  
Energy Distribution ◽  
Thermal Energy ◽  
Shape Factor ◽  
Computational Analysis ◽  
Solid Particles ◽  
Casson Nanofluid

Air Pollution

2017 ◽  
Author(s):  
Jonathan M. Samet ◽  
Aaron J. Cohen
Keyword(s):  
Air Pollution ◽  
Air Pollutants ◽  
Indoor Air Pollution ◽  
Epidemiologic Studies ◽  
Adverse Health Effects ◽  
Naturally Occurring ◽  
Exposure Levels ◽  
Scientific Attention ◽  
Occupational Settings ◽  
Indoor And Outdoor

A wide variety of manmade and naturally occurring air pollutants are known to cause cancer. Diverse exposures such as tobacco smoke, radionuclides (radon), chemicals (benzene, mustard gas, and volatile organic compounds), fibers (asbestos), and metals and metalloids (chromium, nickel, and arsenic) have long been classified as carcinogenic to humans. Historically, these classifications were based predominantly on high levels of exposure in occupational settings. Over the last thirty to forty years, scientific attention has focused on quantifying the adverse health effects of indoor and outdoor air pollutants at exposure levels several orders of magnitude lower than were studied initially. These include secondhand smoke, household exposure to radon, residential and environmental exposure to asbestos, soot from diesel-powered engines, ambient exposures to small particles (PM2.5), and indoor air pollution from the combustion of biomass and coal. This chapter provides an overview of recent epidemiologic studies of air pollutants and cancer.

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