Investigation on aerodynamic characteristics of bionic membrane nano rotor. (September 2021)

• Record Type: Journal Article
• Authors: Zhao, Shanyong; Liu, Zhen; Lu, Ke; Su, Dacheng; Wu, Shangjing
• Is Part Of: International journal of micro air vehicles. Volume 13(2021)
• Publication Date: 2021-09
• Subjects: Nano rotor -- membrane rotor -- low Reynolds number -- fluid–structure interaction -- aerodynamic characteristics; Aerosonde (Drone aircraft) -- Periodicals; Aerospace engineering -- Periodicals; Aerosonde (Drone aircraft); Aerospace engineering; Periodicals; 623.746905
• DOI: 10.1177/17568293211043304
• Languages: English
• ISSNs: 1756-8293

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.