Inertial Deposition of Aerosol Particles in a Periodic Row of Porous Cylinders

Autor:	S. K. Zaripov, O. V. Solov’eva, S. A. Solov’ev
Rok vydání:	2015
Předmět:	Materials science Airflow Darcy number Mechanics Pollution Aerosol Physics::Fluid Dynamics Deposition (aerosol physics) Classical mechanics Flow velocity Flow (mathematics) Environmental Chemistry General Materials Science Porosity Stokes number
Zdroj:	Aerosol Science and Technology. 49:400-408
ISSN:	1521-7388 0278-6826
Popis:	The aerosol flow through a periodic row of parallel porous cylinders is investigated. The air flow field outside the cylinders is described by the Navier–Stokes equations of viscous incompressible fluid. The extended Darcy–Brinkman equations are used to calculate the flow velocity inside a porous cylinder. The dependence of the efficiency of the deposition of aerosol particles by inertial impaction and interception on the Stokes number for various values of the Darcy number is studied. Comparison of the results obtained from the numerical model and an approximate analytical model is given. The combined approximate formula for the deposition efficiency of a cylindrical fiber in a parallel array proposed by Muller et al. (2014) is extended for the porous cylindrical fiber. The aerosol flow through the porous body composed by a random array of cylinders is calculated to estimate the interior deposition.Copyright 2015 American Association for Aerosol Research
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a9c2f747e50dabb3da360de5a52dd020 https://doi.org/10.1080/02786826.2015.1036834 Zobrazit plný text záznamu