Computational Study of Fluid Flow Behavior Over Bio-Inspired Corrugated Airfoil for Micro Aerial Vehicles

8 Pages Posted: 12 Feb 2018

See all articles by Y D Dwivedi

Y D Dwivedi

Vignan's Foundation for Science, Technology & Research (VFSTR) University

V Sridhar

VEPA Technologies

P. M. V. Rao

Vignan's Foundation for Science, Technology & Research (VFSTR) University

Donepudi Jagadish

Narasaraopeta Engineering College - Department of Mechanical Engineering

Date Written: December 21, 2017

Abstract

Comprehensive computational fluid dynamic study of bio-inspired corrugated airfoil is performed at low Reynolds number typical of gliding flight of micro aerial vehicles. Two-dimensional computational models of corrugated airfoil and flat plate of same chord length are generated using ANSYS modeling tools. The models are meshed using ICEMCFD with rectangular block meshing. Numerical simulations are performed at Reynolds number of 3.5x104 and angles of attack ranging from -40 to 120. K-ε turbulence model is used to implement the turbulent condition in flow domain. The boundary conditions and size of flow domain are taken as per the available experimental data to facilitate future experimental verification. The flow parameters such as velocity and pressure of the corrugated airfoil are obtained computationally and compared with baseline flat plate of same chord length and plate thickness. The flow parameters such as velocity and pressure obtained over the corrugated and flat plate profiles indicate that the corrugated wing outperforms the flat plate aerodynamically. Flow conditions such as formation of leading edge vortex in the first valley of corrugated airfoil and formation of trailing edge vortices at higher angles of attack compared to the flat plate. The corrugated profile produced lower drag, higher lift and hence better aerodynamic efficiency than flat plate.

Keywords: CFD, Corrugated Airfoil, Flow Behavior, Leading Edge Vortices, Micro Aerial Vehicle

Suggested Citation

Dwivedi, Y D and Sridhar, V and Rao, P. M. V. and Jagadish, Donepudi, Computational Study of Fluid Flow Behavior Over Bio-Inspired Corrugated Airfoil for Micro Aerial Vehicles (December 21, 2017). International Conference on Advances in Thermal Systems, Materials and Design Engineering (ATSMDE2017). Available at SSRN: https://ssrn.com/abstract=3101272 or http://dx.doi.org/10.2139/ssrn.3101272

Y D Dwivedi (Contact Author)

Vignan's Foundation for Science, Technology & Research (VFSTR) University ( email )

Guntur, 522213
India

V Sridhar

VEPA Technologies ( email )

Plot no 990/G2, HMT Swarnapuri Colony
Miyapur
Hyderabad, Telangana 500049
India

P. M. V. Rao

Vignan's Foundation for Science, Technology & Research (VFSTR) University

Guntur, 522213
India

Donepudi Jagadish

Narasaraopeta Engineering College - Department of Mechanical Engineering

Narasaraopet, 522601
India

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