Optimal design of nose and tail of an autonomous underwater vehicle hull to reduce drag force using numerical simulation

M Saghafi, R Lavimi - … , Part M: Journal of Engineering for the …, 2020 - journals.sagepub.com
In this research, the flow around the autonomous underwater vehicles with symmetrical
bodies is numerically investigated. Increasing the drag force in autonomous underwater …

A dragonfly wing inspired biomimetic aerodynamic thrust bearing for increased load capacity

Y Yu, G Pu, T Jiang, K Jiang - International Journal of Mechanical Sciences, 2020 - Elsevier
A novel biomimetic aerodynamic thrust bearing is developed and investigated. The surface
structure of the bearing is evolved from the micro-grids of dragonfly wings, which …

Experimental investigation of flapping mechanism of the black-headed gull in forward flight

BF Feshalami, MH Djavareshkian… - Proceedings of the …, 2019 - journals.sagepub.com
Many developments in aerospace science have originated from nature. One of these
developments has been obtained through inspirations from flying locomotion. The aim of this …

Investigating sweep effects on the stability of leading-edge vortices over finite-aspect ratio pitch-up wings

R Zangeneh - Physics of Fluids, 2021 - pubs.aip.org
The flow field around a finite-span flat wing in pitch motion is modeled by means of large-
eddy simulation. The effect of moderate sweep angles on the stability of the leading-edge …

The role of wing bending deflection in the aerodynamics of flapping micro aerial vehicles in hovering flight

B Forouzi Feshalami… - Proceedings of the …, 2019 - journals.sagepub.com
Scientists have been improving the aerodynamic performance of flapping micro aerial
vehicles by drawing inspiration from birds and insect flight. In this research study, first, the …

Unsteady aerodynamics of flapping bionic eagle wings in forward flight: An experimental and numerical study

Y Azargoon, MH Djavareshkian - Proceedings of the …, 2023 - journals.sagepub.com
The aerodynamic performance of fabricated eagle wing with the corrugated trailing edge
was investigated experimentally and numerically in this study. In this respect, wings were …

An experimental comparison between wing root and wingtip corrugation patterns of dragonfly wing at ultra-low Reynolds number and high angles of attack

M Hojaji, MR Soufivand, R Lavimi - Journal of Applied and …, 2022 - iris.uniroma1.it
This study presents the empirical comparison between the wing root and wingtip corrugation
patterns of dragonfly wing in the newly-built wind-tunnel at the IAUN. The main objective of …

Ground effect on the aerodynamics of a flapping wing in forward flight: an experimental study

M Arasteh, Y Azargoon… - Aircraft Engineering and …, 2023 - emerald.com
Purpose Ground effect is one of the important factors in the enhancement of wing
aerodynamic performance. This study aims to investigate the aerodynamic forces and …

Empirical study of the ground effect on the dynamic stall of a flapping wing in forward flight

MH Djavareshkian, Y Azargoon - Fluid Mechanics & Aerodynamics, 2021 - fma.ihu.ac.ir
In the present study, the ground effect on the dynamics stall of the flapping wing with the
bending deflection angle is experimentally investigated in the forward flight. For this …

Parametric study of a corrugated airfoil in a forward flight at ultra-low Reynolds number

ME Abd El-Latief, K Elsayed, MM Abdelrahman - SN Applied Sciences, 2021 - Springer
In the current study, the mid cross section of the dragonfly forewing was simulated at ultra-
low Reynolds number. The study aims to understand better the contribution of corrugations …