| Autor: |
Huang, Poshu, DiLorenzo, Joseph L., Najarian, Tavit O., Huang, Poshu, DiLorenzo, Joseph L., Najarian, Tavit O. |
| Zdroj: |
Journal of Hydraulic Engineering; July 1994, Vol. 120 Issue: 7 p846-862, 17p |
| Abstrakt: |
This paper describes a new epilimnetic mixing formulation for twodimensional reservoir models. This formulation incorporates a windmixing algorithm based on a mixedlayer theory developed previously for the upper ocean. Given an input of relevant meteorological parameters, the algorithm computes a heatflux source term and a mixedlayer thickness using a mechanical energy balance approach. The computed heatflux profile is used as a source term to the twodimensional (longitudinalvertical) transport equation for temperature. This transport equation is coupled with a corresponding laterally averaged hydrodynamic model developed previously. The combined formulation is solved using a semiimplicit, centraldifferencing scheme. Overall, this modeling approach requires minimal parameterization of windmixing processes. The combined model was adapted to an elongated (10.6kmlong, 0.8kmwide) reservoir system, the Wanaque Reservoir, New Jersey. Wanaque Reservoir data were collected semimonthly during a calibration period (August 1983 through November 1983) and a yearlong verification period (November 1985 through November 1986). The model adaptation successfully reproduced salient features of the vertical structure, including a warm, wellmixed epilimnion, a relatively thin and abrupt metalimnion, and a cold, nearly isothermal hypolimnion. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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