堑尾翼型的表面结构设计及其气动性能的仿真探究DESIGN AND SIMULATION ON AERODYNAMIC PERFORMANCE OF SUNKEN TRAILING EDGE AIRFOIL
王涵信,卢业玮,肖新愉,李均,孟庆鑫,张宇
摘要(Abstract):
为解决传统翼型产生的边界层分离问题,提升机翼气动性能,本文基于NACA4412翼型提出了一种新翼型——堑尾翼,并在大量的仿真实验基础上证实,堑尾翼型具有比原翼型更优越的气动性能。本研究对不同形状、不同风速、不同攻角情形下堑尾翼型的升阻比增益倍数进行了系统讨论。研究数据表明,堑深为零、堑长约为翼型弦长1/3的堑尾翼型具有较优的气动性能,在中低速流场中堑尾翼最高可以得到1.6倍的升阻比增益倍数。因此,本研究可为中低速飞行器的翼型设计提供新的思路,在增大载荷的同时提高能源的利用率。
关键词(KeyWords): 翼型优化;气动性能;流体仿真;翼尾湍流;升阻比
基金项目(Foundation): 2021年高等学校教学研究项目(DWJZW202105db);; 黑龙江省高等教育教学改革重点委托项目(SJGZ20200050);; 黑龙江省规划课题(GJC1319024)资助
作者(Author): 王涵信,卢业玮,肖新愉,李均,孟庆鑫,张宇
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