RT Journal Article
ID 51870ad55e64c39c
A1 Perez Guerrero, Jesus Salvador
A1 Filho, Paulo Fernando Lavalle Heilbron
A1 Pimentel, Luiz C. G.
A1 Cataldi, Marcio
T1 STUDY OF POLLUTANT TRANSPORT IN SURFACE BOUNDARY LAYER BY GENERALIZED INTEGRAL TRANSFORM TECHNIQUE
JF Hybrid Methods in Engineering
JO HME
YR 2001
FD 2001-09-01
VO 3
IS 2&3
OP 10
AB A theoretical study was developed to obtain solutions of the atmospheric diffusion equation for various point sources, considering radioactive decay and axial diffusion, under neutral atmospheric conditions. An algebraic turbulence model available in the literature, based on the Monin—Obukhov similarity theory, was used to represent the turbulent transport in the vertical direction; in the longitudinal directions a constant mass eddy diffusivity was considered. The bidimensional transient partial differential equation, representative of the physical phenomena, was transformed into a coupled one-dimensional transient equation system by applying the generalized integral transform technique (GITT).The coupled system was solved numerically using a subroutine based on the lines method. In order to evaluate the computational algorithm, some representative physical situations were analyzed.
PB Begell House
LK http://dl.begellhouse.com/journals/1a37c0433d303e8b,217eaa4b2b98560a,51870ad55e64c39c.html