Three dimensional modeling of air flow, aerosol distribution and aerosol samplers for unsteady conditions

Journal of Environmental Monitoring : JEM
Albert Gilmutdinov, Ilya Zivilskii


Despite the importance and wide use of aerosol samplers, their basic characteristics including gas flow dynamics, sampling, and aspiration efficiency are still not fully understood and characterized. This is especially the case when a personal inhalable sampler operates under conditions of calm or slowly moving air. Under such conditions, the results may be affected by the breathing of the person. The development of the next generation of sampling devices should be facilitated by the improved knowledge derived from mathematical studies of particle motion in the complex flows around bluff bodies where aspiration occurs. In this work, a three-dimensional and time dependent model of aerosol sampling is developed that can be applied to any feasible aspiration situation. Direct accounting for all the three spatial coordinates and temporal dependence makes the model four dimensional. In order to investigate aspiration characteristics when a sampler is fixed on a person, a digital model of a person is developed. The "digital mannequin" can breathe through the mouth or nose and is heated to body temperature to account for convection effects of warm air around the body. The developed model allows simulation of nonstationary air flow and...Continue Reading


Dec 1, 1978·The Annals of Occupational Hygiene·T L OgdenH Gibson
Jan 1, 1986·The Annals of Occupational Hygiene·D Mark, J H Vincent
Mar 1, 1985·American Industrial Hygiene Association Journal·D MarkG Lynch
Oct 5, 2002·Applied Occupational and Environmental Hygiene·Steven M KerrJames H Vincent
Nov 28, 2008·Journal of Environmental Monitoring : JEM·Darrah K SchmeesJames H Vincent

❮ Previous
Next ❯


Nov 28, 2008·Journal of Environmental Monitoring : JEM·Darrah K SchmeesJames H Vincent
Jan 13, 2009·Journal of Environmental Monitoring : JEM·Deborah Swackhamer, Harp Minhas

❮ Previous
Next ❯

Related Concepts

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.


Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.


Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.