| 个人简介 | |
|---|---|
 Prof. Decheng Wan Shanghai Jiao Tong University (SJTU), China |
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| 标题： Large-Eddy Simulations of Complex Wake Flows around Large Wind Farm in Real Wind Environments | |
| 摘要： In order to improve the economic performance of wind power generation, the wind turbine is developing towards the direction of floating type and large scale. In the previous work, we have investigated the coupled aero-hydrodynamic performance of the floating offshore wind turbine (FOWT) under combined wind-wave excitation. Different coupled analysis models based on overset grid technique and modified actuator line model are developed for the FOWT. In addition, the capacity and dimension of commercial wind turbines have increased exponentially in recent years. Due to the large span of the turbine rotor, the inflow condition experienced by the rotating blades significantly changes. Therefore, the uniform inflow condition cannot meet the requirement of the aerodynamic analysis of the large-scale wind turbine. It is necessary to take the real wind environments into account in numerical simulations of wind turbine aerodynamics. The atmospheric boundary layer flow that considers the influence of temperature and Coriolis force on the airflow is adopted to model the realistic wind condition. Wake interactions between two wind turbines with tandem layout in atmospheric boundary layer have been studied. The complex wake flows around large wind farm in real wind environments are investigated in the present work. A large eddy simulation and an actuator disk model are applied to simulate the wake field and aerodynamic loads of wind turbines in large wind turbine. The influence of inflow wind speed, surface roughness length and atmosphere boundary layer on the turbine aerodynamics and wake characteristics are discussed in detail. Moreover, the yaw-control optimization for large wind farm based on the particle swarm algorithm is evaluated by LES simulation. | |
| 简介： Prof. Decheng Wan received his Ph.D from Shanghai Jiao Tong University (SJTU), China in 1994. He became a lecturer of Shanghai University in 1994, and was promoted to be an associate professor of Shanghai University in 1996. After successively worked as a research fellow of the Royal Society at University College London, UK, a senior research fellow at National University of Singapore, and a Wissenschaftliche Angestellter at Dortmund University, Germany from 1997 to 2005, he returned to Shanghai and was appointed as a full professor of Shanghai Jiao Tong University in 2006. He was selected as a distinguished professor of Shanghai Eastern Scholar in 2008, and promoted as a chair professor of Chang Jiang Scholar of China in 2014, and distinguished professor of Shanghai Jiao Tong University in 2015. Currently, Prof. Wan is Head of Computational Marine Hydrodynamics Laboratory (CMHL) at SJTU. His research interest is mainly on computational marine and coastal hydrodynamics, Computational Marine Hydrodynamics, Simulation Based Design for Offshore and Polar Structures, Renewable Energy in Deep Sea, numerical marine basin, nonlinear wave theory, wave loads on structures, numerical analysis of riser vortex-induced vibration (VIV) and platform vortex-induced motion (VIM), fluid- structure interaction, offshore wind turbine and other offshore renewable resources, as well as high performance computation on complex ship and ocean engineering flows, etc. In these areas, he has published over 480 papers and carried out more than 30 projects on marine hydrodynamics and computational hydrodynamics. He is Board of Directors and Chair of International Hydrodynamic Committee (IHC) of International Society of Offshore and Polar Engineering (ISOPE), Member of Advisor Committee of International Towing Tank Conference (ITTC), Member of Energy Saving Method Specialist Committee and CFD Specialist Committee of International Towing Tank Conference (ITTC), Member of Steering Committee of CFD Workshops in Ship Hydrodynamics, Standing Council Member of Association of Global Chinese Computational Mechanics, Member of External Advisory Committee (EAC) of the Department of Ocean Systems Engineering (OSE) of Korea Advanced Institute of Science and Technology (KAIST). He is associate editor of Journal of Hydrodynamics, Journal of Ocean Science and Engineering, as well as member of Editorial Board of Ocean Engineering, Applied Ocean Research, Journal of Ocean and Wind Energy, Journal of Shipping and Ocean Engineering, International Journal of Naval Architecture and Ocean Engineering, Journal of Ship Mechanics, Journal of Marine Science and Applications, Journal of China Ship Research as well as Journal of Chinese Quarterly of Mechanics. | |
