三維仿生拍撲翼之初步模擬.pdfVIP

第八届海峡两岸航空航天学术研讨会 The8th Cross—straitsConferenceonAeronauticsandAstronautics 三维仿生拍撰翼之初步模掇 到硕翰牛仰霓黄美孀 中莘大早横械工程孕系淡江大旱航太工程旱系台湾大单横械工程晕系 摘要：本文主要模凝拍揆翼，弹性翼翅膀之逼勤所造成的氯勤力效臆，利用NACA0012之翼 型，束段针颊似海酶翼翅大小之物理模型，分别以刚性翼舆弹性翼在固定拍揆振幅之倏件下，耦合 不同减频率、俯仰角以及不同攻角等参敷，束探言寸舆分析不同参敷下的氯勤力之影警。以作属後人 设计相同尺度忝行器睛之参考。 网键字：氯勤力：拍揆翼：弹性翼 oftheThree—dimensional AerodynamicsAnalysis FlappingWings Shin·Han Liu，Yang—YaoNiu，M．J．Huang． ofMechanicaland Department Engineering Hua andNationalTaiwan University,TamkangUniversity University Chung the issimulated．ne Abstract：Inthis of study,theaerodynamicperformanceflappingwings widely usedNACA0012 airfoiliS asthe modeltomimicthe adopted computational seagull’Swing．The consideredkinematic asthe ofthe andflexible flight parametersflappingamplituderigid wingscoupling themainconcernsin studies．Tovalidateour withreduced and ofaRackare our frequencyangle NACA0012 airfoiliscalculatedand the flowovera three．dimensional computations，the compared thrustdistributionwiththe flowfieldsofthethree．dimensionaland previOUSwork．Secondly,the rigid flexibleNACA0012airfoilsunderdifferentreduce are andstudied．Itisfoundthatthe frequencycomputed flexiblewith reduced canenhancetheliftandthetrust． mildly