||Characteristics of two-dimensional particle eddy diffusion in office space /
Yamamoto, Toshiaki. ;
Kim, S. D. ;
Ensor, D. S. ;
Sparks, L. E.
||Research Triangle Inst., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
|| U.S. Environmental Protection Agency, Office of Research and Development, Air and Energy Engineering Research Laboratory,
||EPA/600/D-90/107; AEERL-P-687; EPA-R-814169-01-0
Indoor Air '90 Conference :--1990 :--Toronto, Canada ;
Turbulent diffusion ;
Office buildings ;
Environmental engineering ;
Two dimensional flow ;
Mathematical models ;
Air flow ;
Indoor air pollution ;
K-epsilon turbulence model
||Some EPA libraries have a fiche copy filed under the call number shown.
||8 pages ; 28 cm
The paper discusses the development of a two-dimensional turbulent kinetic energy-dissipation rate (k-epsilon) turbulence model in the form of vorticity and stream functions. This turbulence model provides the distribution of turbulent kinematic viscosity, used to calculate the effective turbulent diffusion coefficient. These values were incorporated into the particle diffusion equation for determining the contaminant concentration profiles within an occupied space. The effects of locations of the supply air duct and the contaminant source on particle concentration distribution and ventilation effectiveness were investigated.
Caption title. "EPA/600/D-90/107." "Leslie E. Sparks, project officer." Microfiche.