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Aerodynamics with state-of-the-art bioinspired technology: Tubercles of humpback whale
Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering ( IF 1.1 ) Pub Date : 2021-03-27 , DOI: 10.1177/09544100211001501
VT Gopinathan 1 , J Bruce Ralphin Rose 2
Affiliation  

Bioinspired aerodynamics is an emerging subject in the design of advanced flight vehicles with superior performance and minimum fuel consumption. In the present review article, a comprehensive evaluation is focused on previous studies and investigations toward the performance enhancement of aerodynamic surfaces with leading-edge (LE) tubercles. The implementation of tubercles has been biologically imitated from humpback whale (HW) flippers. Particularly, aerodynamicists are much interested in this bioinspired technology because of the exclusive maneuvering and flow control potential of HW flippers. LE protuberances are considered as a passive flow control method to improve the aerodynamic performance in various applications like aviation, marine, and wind energy. The aerodynamic and hydrodynamic performance variations caused by specific tubercles amplitude and wavelength are also compared through numerical and wind tunnel testing. The prospective utilization of tubercles on boundary layer flow control is measured with regard to conventional and swept-back wing designs. Flow control mechanisms of tubercles are outlined with several interesting facts in addition to the outcomes of various bioinspired aerodynamic investigations in the recent years.



中文翻译:

先进的生物启发技术带来的空气动力学特性:座头鲸的结节

具有生物灵感的空气动力学是高级飞行器设计中新兴的主题,该飞行器具有出众的性能和最低的油耗。在本篇综述文章中,全面的评估集中在以前的研究和调查中,以提高具有前缘(LE)结节的空气动力学表面的性能。结节的实施已从座头鲸(HW)的鳍状肢进行了生物学模仿。尤其是,由于HW脚蹼具有独特的机动性和流量控制潜力,因此空气动力学专家对该生物启发技术非常感兴趣。LE突起被认为是一种被动的流量控制方法,可以改善航空,航海和风能等各种应用中的空气动力学性能。还通过数值和风洞测试比较了由特定结节幅度和波长引起的空气动力和流体动力性能变化。关于常规和后掠式机翼设计,测量了在边界层流控制上对结节的预期利用。除了近年来各种生物启发的空气动力学研究的成果以外,还有几个有趣的事实概述了结节的流量控制机制。

更新日期:2021-03-29
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