A quasi-coupled wind wave experimental framework for testing offshore wind turbine floating systems

作     者：C.Feist F.Sotiropoulos M.Guala C.Feist;F.Sotiropoulos;M.Guala

作者机构：Saint Anthony Falls LaboratoryCollege of Science and EngineeringUniversity of MinnesotaMinneapolis MN 55414USA Department of Mechanical and Nuclear EngineeringVirginia Commonwealth UniversityRichmond VA 23284-2527USA Department of CivilEnvironmental and Geo-EngineeringCollege of Science and EngineeringUniversity of MinnesotaMinneapolis MN 55455-0116USA 

出 版 物：《Theoretical & Applied Mechanics Letters》 (力学快报（英文版）)

年 卷 期：2021年第11卷第5期

页      面：280-290页

核心收录：

学科分类：081505[工学-港口、海岸及近海工程] 080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0815[工学-水利工程] 0824[工学-船舶与海洋工程] 0814[工学-土木工程] 082401[工学-船舶与海洋结构物设计制造] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by project:DE-FOA-0000415 US Offshore Wind Technology Development“High resolution computational algorithms for simulating offshore wind farms” 

主　　题：Wind power Ocean Renewable Turbulent flow 

摘      要：Two sets of experiments in the *** Falls Laboratory(SAFL)wave tank facility and atmospheric wind tunnel are integrated to provide a scaled representation of a floating wind turbine under heave and pitch motions due to ocean *** quasi-coupling is established by controlling the turbine rotor speed to generate a thrust force mimicking steady or fluctuating wind gusts in the wave tank,and by using two actuators to oscillate a miniature turbine in the wind *** pitch and heave motions under varying waves are scaled down using rotor geometry and the wake meandering frequency to study the effect of the floating platform kinematics on the evolution and characteristics of the oscillating turbine *** a limited case of experimental conditions results provide a phenomenological and quantitative description of the floating-turbine system under variable waves and simulated wind ***,we demonstrate that wind gusts contribute to increase the platform pitch range,and that periodic large scale flow patches of high and low momentum flow are generated by the oscillating rotor in the turbulent boundary layer and are coherently convected through the *** mechanisms could amplify the pitch response of downwind floating turbine units within the offshore power plant,in particular if the wave and/or wind forcing frequencies happen to approach the pitch natural frequency of the floating system.