scholarly journals Estimates of the stochasticity of droplet dispersion by a cough

2021 ◽  
Vol 33 (11) ◽  
pp. 115130
Author(s):  
Shrey Trivedi ◽  
Savvas Gkantonas ◽  
Léo C. C. Mesquita ◽  
Salvatore Iavarone ◽  
Pedro M. de Oliveira ◽  
...  
Keyword(s):  
Droplet Dispersion

Liquid Droplet Dispersion in a Rotating Packed Bed: Experimental and Numerical Studies

2021 ◽  
pp. 116675
Author(s):  
Ying Wang ◽  
Yan-Bin Li ◽  
Meng-Jun Su ◽  
Guang-Wen Chu ◽  
Bao-Chang Sun ◽  
...  
Keyword(s):  
Liquid Droplet ◽  
Packed Bed ◽  
Droplet Dispersion ◽  
Numerical Studies ◽  
Rotating Packed Bed

scholarly journals Assessment of an Eulerian CFD model for prediction of dilute droplet dispersion in a turbulent jet

2008 ◽  
Vol 32 (12) ◽  
pp. 2686-2705 ◽  
Author(s):  
J.J. Nijdam ◽  
T.A.G. Langrish ◽  
D.F. Fletcher
Keyword(s):  
Turbulent Jet ◽  
Cfd Model ◽  
Droplet Dispersion

scholarly journals Droplet dispersion angle measurements on a Pease-Antony Venturi scrubber

2012 ◽  
Vol 29 (1) ◽  
pp. 99-106 ◽  
Author(s):  
N. A. G. Puentes ◽  
V. G. Guerra ◽  
J. R. Coury ◽  
J. A. S. Gonçalves
Keyword(s):  
Droplet Dispersion ◽  
Venturi Scrubber ◽  
Angle Measurements

A study of shallow cumulus cloud droplet dispersion by large eddy simulations

2011 ◽  
Vol 25 (2) ◽  
pp. 166-175 ◽  
Author(s):  
Xiaofeng Wang ◽  
Huiwen Xue ◽  
Wen Fang ◽  
Guoguang Zheng
Keyword(s):  
Cloud Droplet ◽  
Large Eddy Simulations ◽  
Cumulus Cloud ◽  
Droplet Dispersion ◽  
Shallow Cumulus ◽  
Large Eddy

scholarly journals Assessing the Physiological Relevance of Cough Simulators for Respiratory Droplet Dispersion

2020 ◽  
Vol 9 (9) ◽  
pp. 3002 ◽  
Author(s):  
Shiv H. Patel ◽  
Wonjun Yim ◽  
Anupam K. Garg ◽  
Sahil H. Shah ◽  
Jesse V. Jokerst ◽  
...  
Keyword(s):  
Droplet Size ◽  
Velocity Dispersion ◽  
Slow Motion ◽  
Limited Data ◽  
Droplet Dispersion ◽  
Physiological Relevance ◽  
Dispersion Velocity ◽  
Average Size ◽  
Spray Gun ◽  
Scanning Electron

Various breathing and cough simulators have been used to model respiratory droplet dispersion and viral droplets, in particular for SARS-CoV-2 modeling. However, limited data are available comparing these cough simulations to physiological breathing and coughing. In this study, three different cough simulators (Teleflex Mucosal Atomization Device Nasal (MAD Nasal), a spray gun, and GloGermTM MIST) that have been used in the literature were studied to assess their physiologic relevance. Droplet size, velocity, dispersion, and force generated by the simulators were measured. Droplet size was measured with scanning electron microscopy (SEM). Slow-motion videography was used to 3D reconstruct and measure the velocity of each simulated cough. A force-sensitive resistor was used to measure the force of each simulated cough. The average size of droplets from each cough simulator was 176 to 220 µm. MAD Nasal, the spray gun, and GloGermTM MIST traveled 0.38 m, 0.89 m, and 1.62 m respectively. The average velocities for the MAD Nasal, spray gun, and GloGermTM MIST were 1.57 m/s, 2.60 m/s, and 9.27 m/s respectively, and all yielded a force of <0.5 Newtons. GloGermTM MIST and the spray gun most closely resemble physiological coughs and breathing respectively. In conclusion, none of the simulators tested accurately modeled all physiologic characteristics (droplet size, 3-D dispersion velocity, and force) of a cough, while there were various strengths and weaknesses of each method. One should take this into account when performing simulations with these devices.

Droplet dispersion characteristics of the hollow cone sprays in crossflow

2013 ◽  
Vol 45 ◽  
pp. 25-33 ◽  
Author(s):  
Haibin Zhang ◽  
Bofeng Bai ◽  
Li Liu ◽  
Huijuan Sun ◽  
Junjie Yan
Keyword(s):  
Dispersion Characteristics ◽  
Hollow Cone ◽  
Droplet Dispersion

scholarly journals A study of fluid dynamics and human physiology factors driving droplet dispersion from a human sneeze

2020 ◽  
Vol 32 (11) ◽  
pp. 111904
Author(s):  
D. Fontes ◽  
J. Reyes ◽  
K. Ahmed ◽  
M. Kinzel
Keyword(s):  
Fluid Dynamics ◽  
Human Physiology ◽  
Droplet Dispersion

Experimental and Theoretical Investigation of Droplet Dispersion in Venturi Scrubbers with Axial Liquid Injection

2009 ◽  
Vol 32 (5) ◽  
pp. 798-804 ◽  
Author(s):  
M. R. Talaie ◽  
N. Mokhtarian ◽  
A. Talaei ◽  
M. Karimikhosroabadi ◽  
F. Sadeghi
Keyword(s):  
Theoretical Investigation ◽  
Droplet Dispersion ◽  
Liquid Injection

Computations of turbulent droplet dispersion for wind tunnel icing tests

1996 ◽  
Author(s):  
Brian DeAngelis ◽  
Eric Loth ◽  
Dennis Lankford ◽  
C. Bartlett
Keyword(s):  
Wind Tunnel ◽  
Droplet Dispersion
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