Investigation on aerodynamic characteristics of bionic membrane nano rotor

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2021-01-01 DOI:10.1177/17568293211043304

Shanyong Zhao, Zhen Liu, K. Lu, Dacheng Su, Shangjing Wu

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Abstract

In this paper, the bionic membrane structure is introduced to improve the aerodynamic performance of nano rotor at the low Reynolds number. The aerodynamic characteristics of nano rotor made of hyperelastic material as membrane blades are studied. Firstly, based on the hyperelastic constitutive model, a finite element model of the rotor is established and compared with the results of the modal test to verify the accuracy of the model. Then the computational fluid dynamics model of membrane nano rotor is established which combined with the finite element model. The aerodynamic characteristics of the membrane rotor under hovering conditions are studied using fluid–structure interaction method. It is found that the calculation results matched well with the experiment results. The design of the structural parameters such as the membrane proportion, shape, and position of the membrane rotor is optimized. The influence of each parameter on the aerodynamic performance of the rotor is obtained. Under certain structural conditions, the performance can be effectively improved, which provides a new idea for the design of the nano rotor.

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仿生膜纳米转子气动特性研究

本文采用仿生膜结构来改善纳米转子在低雷诺数下的气动性能。研究了超弹性材料纳米转子作为薄膜叶片的气动特性。首先，在超弹性本构模型的基础上，建立了转子的有限元模型，并与模态试验结果进行了比较，验证了模型的准确性。然后结合有限元模型建立了薄膜纳米转子的计算流体动力学模型。采用流固耦合方法研究了悬停条件下膜转子的气动特性。计算结果与实验结果吻合良好。对膜转子的膜比例、形状和位置等结构参数进行了优化设计。得出了各参数对转子气动性能的影响。在一定的结构条件下，可以有效地提高纳米转子的性能，为纳米转子的设计提供了新的思路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.