Investigation of seasonal thermal flow in a real dam reservoir using 3-D numerical modeling

Title:

Investigation of seasonal thermal flow in a real dam reservoir using 3-D numerical modeling

Creator:

Üneş, Fatih and Varçin, Hakan

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:f6f3a0e9-8d46-452f-86d2-45ddc57192ac
uuid:f6f3a0e9-8d46-452f-86d2-45ddc57192ac
doi:10.1515/johh-2015-0007

Subject:

real dam reservoir, thermal stratification, mathematical model, density flow, and divergence flow

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Investigations indicate that correct estimation of seasonal thermal stratification in a dam reservoir is very important for the dam reservoir water quality modeling and water management problems. The main aim of this study is to develop a hydrodynamics model of an actual dam reservoir in three dimensions for simulating a real dam reservoir flows for different seasons. The model is developed using nonlinear and unsteady continuity, momentum, energy and k-ε turbulence model equations. In order to include the Coriolis force effect on the flow in a dam reservoir, Coriolis force parameter is also added the model equations. Those equations are constructed using actual dimensions, shape, boundary and initial conditions of the dam and reservoir. Temperature profiles and flow visualizations are used to evaluate flow conditions in the reservoir. Reservoir flow’s process and parameters are determined all over the reservoir. The mathematical model developed is capable of simulating the flow and thermal characteristics of the reservoir system for seasonal heat exchanges. Model simulations results obtained are compared with field measurements obtained from gauging stations for flows in different seasons. The results show a good agreement with the field measurements.

Language:

Slovak

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

38-46

Source:

Journal of hydrology and hydromechanics | 2015 Volume:63 | Number:1

Harvested from:

CDK

Metadata only:

false