Bio-inspired designs have been serving as a great inspiration for Aerodynamists for the past several decades. The biological features of each species have evolved through generations that play a substantial role in their ultimate survival. Manmade technologies have significantly benefited from these evolutionary attributes by mimicking such optimal features through artificial means of engineering. Biologically mimicking a particular feature of a natural species for scientific applications has introduced an interdisciplinary field of study that is popularly termed as “Biomimetics”. Biomimetic solutions have gained greater scope because of their unique potential to address the existing design challenges. The present review article approaches the state-of-the-art biomimetic techniques in a qualitative as well as quantitative perspective by mainly focusing on the potential aerodynamic applications. Through a quantitative approach, emerging researchers can have a firm basis from a pool of existing techniques. Drag reduction, lift enhancement, and flow separation control are the major design optimization challenges existing in the field of aerodynamics. The Biomimetic techniques discussed herein are evaluated on such qualities through consecutively organized sections which are the key instruments for non-flapping applications. A critical review on the well-liked biomimetic techniques for flow control is addressed with their potential applications in relevance to the aerospace industry. Few patented techniques from allied fields like hydrodynamics are also discussed because of their conceptual effectiveness in aerodynamic applications. Furthermore, the flow control effectiveness of Humpback Whale (HW) inspired biomimetic leading edge tubercles is numerically investigated with straight and sweptback wing configurations. The results clearly indicate the potentials of biomimetic techniques to transform the future designs of aerodynamic surfaces.

在过去的几十年里，仿生设计一直是 Aerodynamists 的一大灵感来源。每个物种的生物学特征都经过几代进化，在它们的最终生存中发挥着重要作用。通过人工工程手段模仿这些最佳特征，人造技术从这些进化属性中受益匪浅。从生物学上模仿自然物种的特定特征用于科学应用已经引入了一个跨学科的研究领域，通常被称为“仿生学”。仿生解决方案因其解决现有设计挑战的独特潜力而获得了更大的应用范围。本综述文章主要关注潜在的空气动力学应用，从定性和定量的角度探讨了最先进的仿生技术。通过定量方法，新兴研究人员可以从现有技术库中获得坚实的基础。减阻、升力增强和流动分离控制是空气动力学领域存在的主要设计优化挑战。本文讨论的仿生技术通过连续组织的部分对这些质量进行评估，这些部分是非扑翼应用的关键工具。对广受欢迎的流量控制仿生技术进行了批判性审查，讨论了它们在航空航天工业中的潜在应用。由于其在空气动力学应用中的概念有效性，很少讨论来自相关领域（如流体动力学）的专利技术。此外，采用直翼和后掠翼配置对受座头鲸 (HW) 启发的仿生前缘结节的流量控制有效性进行了数值研究。结果清楚地表明了仿生技术在改变空气动力学表面设计方面的潜力。