Vc. John et al., DEVELOPMENT AND EVALUATION OF NUMERICAL HYDRODYNAMIC MODELS FOR SMALLLAKES AND RESERVOIRS, Canadian journal of civil engineering, 22(2), 1995, pp. 270-282
The response of a small lake or reservoir system to wind and streamflo
w forcing is examined in this paper using a numerical model based on N
avier-Stokes equation and a numerical hydraulic model using the segmen
t-node approach. The main mass transport in the lake has been found to
be due to wind; the circulation caused by stream inflow and outflow o
f the lake contributes a relatively small fraction of the total transp
ort. The above-mentioned models have been applied to different wind re
gimes and constant or variable inflow-outflow conditions of Long Lake
(Nova Scotia). Comparisons are made between observed data and model re
sults by both models. The model response has also been studied for gen
eration of seiches and wind setup in the lake; and the response of the
lake to these forcing functions has been presented. The comparison of
model results with in situ field data establishes model's suitability
to make predictions. Drogue and water level measurements were made at
a number of locations in the Long Lake to validate the numerical mode
ls. The results from the numerical simulation using the two models com
pare favourably with the observed data. As may be expected, the segmen
t-node modelling scheme was found to be computationally more efficient
and relatively easy to run on a personal computer.