Three-dimensional prediction of reservoir water temperature by the lattice Boltzmann method: Validation

作     者：刁伟 程永光 张春泽 吴家阳 

作者机构：State Key Laboratory of Water Resources and Hydropower Engineering ScienceWuhan University 

出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)

年 卷 期：2015年第27卷第2期

页      面：248-256页

核心收录：

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0801[工学-力学（可授工学、理学学位）] 

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.10572106,10872153 and 11172219) the Specialized Research Fund for the Doctoral Program of Higher Education of China(Grant No.20130141110013) 

主　　题：lattice Boltzmann method(LBM) thermal buoyancy reservoir water temperature multi-dimensional simulation 

摘      要：The water temperature stratification in large reservoirs might have serious ecological and environmental consequences. The modeling of the temperature distribution and its history is of great importance both for studying the underlying mechanisms and for controlling the adverse effects. To develop an effective and efficient method for simulation of temporal and spatial temperature variations, a lattice Boltzmann method（LBM） model for 3-D thermal buoyancy flows is proposed and validated by the temperature data measured in a model reservoir. This paper discusses important aspects of the LBM and its turbulence model, analyzes the gravity sinking mechanism of cold currents, and demonstrates the complexity of the temperature redistribution process. Good agreement between the simulated and measured results shows that the newly developed method is feasible and powerful, and it will be used for the water temperature prediction in actual reservoirs in a near future.