TY - JOUR
T1 - Lagrangian particle simulation of tracer dispersion in the lee of a schematic two-dimensional hill
AU - Tinarelli, G.
AU - Anfossi, D.
AU - Brusasca, G.
AU - Ferrero, E.
AU - Giostra, U.
AU - Morsellia, M. G.
AU - Moussafir, J.
AU - Trombetti, F.
AU - Tampieri, F.
PY - 1994
Y1 - 1994
N2 - Spray, a 3D Lagrangian particle model for the simulation of complex flow dispersion, is presented. Based on the measured values of the first two moments of the turbulent flow velocity, the mean fields are computed over a regular grid using a mass-consistent model, whereas the turbulence structure is simply interpolated. From these fields, trajectories of tracer particles are computed using a linear formulation of the Langevin equation, with a correlated, skewed forcing. The computed concentration field turns out to be in good agreement with the observed one. In detail, ground-level profiles and vertical cross sections of concentration are compared, showing the important effects resulting from the topographic influence on the flow structure. -from Authors
AB - Spray, a 3D Lagrangian particle model for the simulation of complex flow dispersion, is presented. Based on the measured values of the first two moments of the turbulent flow velocity, the mean fields are computed over a regular grid using a mass-consistent model, whereas the turbulence structure is simply interpolated. From these fields, trajectories of tracer particles are computed using a linear formulation of the Langevin equation, with a correlated, skewed forcing. The computed concentration field turns out to be in good agreement with the observed one. In detail, ground-level profiles and vertical cross sections of concentration are compared, showing the important effects resulting from the topographic influence on the flow structure. -from Authors
UR - http://www.scopus.com/inward/record.url?scp=0028668923&partnerID=8YFLogxK
U2 - 10.1175/1520-0450(1994)033<0744:LPSOTD>2.0.CO;2
DO - 10.1175/1520-0450(1994)033<0744:LPSOTD>2.0.CO;2
M3 - Article
SN - 0894-8763
VL - 33
SP - 744
EP - 756
JO - Journal of Applied Meteorology
JF - Journal of Applied Meteorology
IS - 6
ER -