کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
300228 512473 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Unsteady aerodynamics of offshore floating wind turbines in platform pitching motion using vortex lattice method
ترجمه فارسی عنوان
آیرودینامیک ناحیه ای از توربین های شناور دریایی در دریای خزر با استفاده از روش شبکه های گرداب
کلمات کلیدی
توربین بادی شناور، بار آیرودینامیکی نامنظم، تئوری شتاب عنصر تیغه، روش شبکه وورتکس
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی


• Unsteady aerodynamics of floating wind turbines has been investigated.
• A numerical code which is using vortex lattice method was developed.
• A turbulent wake state arises when a floating wind turbine is operated at a low-speed inflow condition.
• The rotor experiences a turbulent wake state when the floating platform undergoes upward pitching motion.

As the flow states of an offshore floating wind turbine (OFWT) differ from those of an onshore fixed wind turbine, it is questionable as to whether the aerodynamic load prediction of a turbine using conventional blade element momentum theory (BEMT) is accurate. The aim of this paper is to show the characteristics of aerodynamic load predictions using the vortex lattice method (VLM). Washizu's experimental data, which was measured under a similar flow state of a floating wind turbine, is used for validation. The prediction shows good results compared to those of an experiment. To determine the unsteady aerodynamics of a floating wind turbine, the NREL 5 MW wind turbine model is used for the simulation of a floating wind turbine. These results show that a turbulent wake state (TWS), which is undesirable condition and cannot predicted in BEMT simulation, arises when a floating wind turbine is operated at a low-speed inflow condition. In addition, the rotor experiences a TWS when the floating platform undergoes upward pitching motion.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 65, May 2014, Pages 207–212
نویسندگان
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