FISICA AMBIENTALE 1
Trasporto degli
inquinanti in acqua
Antonio Ballarin Denti
[email protected]
TRASPORTO NEI CORSI D’ACQUA
Equazione di continuità
ONE DIMENSIONAL DISPERSION EQUATION
On the left-hand side a stream is sketched, of which a
small part is enlarged on the right-hand side. The variables
indicated there refer to a frame moving with the average flow
Stationary fluid movement under gravity and friction force in equilibrium
Nube finita istantanea
C = C0
-b/2 < x < b/2
t=0
C=0
altrove
t=0
Modello di rischio per il Reno
Calculations based on a Rhine
calamity model, compared
with calibration experiments.
The upper figure refers to
Maximiliansau, some 210 km
from the “calamity”, and the
lower figure to Lobith, some
710 km from the “calamity”.
Emissione puntuale continua
Concentration profile for
a continuous centreline
injection. The curve
“centreline” shows the
concentration as a
function of distance
along the centre of
the river, the curve
“side” similarly at one
of the sides.