contributor author | Ding, Chi | |
contributor author | Zhang, Bin | |
contributor author | Liang, Chunlei | |
contributor author | Visser, Kenneth | |
contributor author | Yao, Guangming | |
date accessioned | 2023-08-16T18:15:52Z | |
date available | 2023-08-16T18:15:52Z | |
date copyright | 11/1/2022 12:00:00 AM | |
date issued | 2022 | |
identifier issn | 0098-2202 | |
identifier other | fe_145_02_021201.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4291730 | |
description abstract | High-order large eddy simulations are performed to study the performance and flow fields of a ducted wind turbine (DWT) operating at different tip speed ratios. To evaluate the effects of the duct, simulations with the same tip speed ratios are also performed on the corresponding open-rotor turbine. It is found that the ducted turbine consistently obtains higher power outputs than the open-rotor counterpart, and the duct itself enhances flow turbulence and blade trailing-edge vortices but weakens tip and hub vortices. Flow bifurcation is observed at the largest tip speed ratio and is identified to be caused by blade blockage effects. Comparative simulations are also performed on both turbines under different yaw angles. It is noticed that the ducted configuration is insensitive to small yaw angles and maintains higher power outputs than the open-rotor configuration at all yaw angles. Moreover, it is observed that the wakes of both configurations recover more quickly as the yaw angle increases. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | High-Order Large Eddy Simulations of a Wind Turbine in Ducted and Open-Rotor Configurations | |
type | Journal Paper | |
journal volume | 145 | |
journal issue | 2 | |
journal title | Journal of Fluids Engineering | |
identifier doi | 10.1115/1.4055989 | |
journal fristpage | 21201-1 | |
journal lastpage | 21201-14 | |
page | 14 | |
tree | Journal of Fluids Engineering:;2022:;volume( 145 ):;issue: 002 | |
contenttype | Fulltext | |