Table 2 should be here
3 RESULTS
3.1 Model test
The numerical modelled and measured hydraulic heads were shown in
Fig. 2(a). On the whole, the assigned parameters were basically in line
with the actual situation. The established numerical model could
basically recreate the groundwater flow field at the site. The overall
trend of modelled temperature was consistent with the measured
values (Fig. 2b). The reason for the fluctuation of measured temperature
might be that the monitoring well was not sealed, resulting in the
measured values being greatly affected by the air temperature. All the
input parameters of the model are shown in Table 3. Since the aquifer
contains a large amount of gravel, the longitudinal dispersivity of the
model was set to 1m. Biochemical parameters were set according to the
empirical values that obtained by comparing multiple literatures.