2026· Journal of Aerospace Technology and Management· Vol 18· 0 citations· 40 references
Abstract
ABSTRACT Inter-regional connectivity is a crucial necessity in various emergencies; however, the limited standard of runways in remote areas poses operational challenges for conventional aircraft. This study aims to investigate the influence of geometric parameters and installation positions of rectangular counter-rotating vortex generators (VGs) on a NACA 4415 airfoil used for short take-off and landing (STOL) amphibious planes. Numerical simulations using the Reynolds-averaged Navier-Stokes k-ω shear stress transport turbulence model were conducted to analyze aerodynamic performance across various angles of attack. The results indicate that VGs effectively delay flow separation and improve the lift-to-drag ratio, particularly at medium to high angles of attack. Geometric parameters such as a height of 30 mm and a length of 4.5 h proved to provide the most rational performance for take-off and landing conditions. However, the installation of VGs also introduces adverse effects in the form of increased parasitic drag at low angles of attack, potentially impacting fuel consumption during the cruise phase. Overall, the proper configuration of VGs significantly enhances the safety and operational efficiency of amphibious aircraft on short runways.
In this study, the aerodynamic performance of National Advisory Committee for Aeronautics (NACA) 4415 airfoil equipped with two different aero-shaped vortex generators (AsVGs) was experimentally investigated. The tested VG designs were based on NACA 0015 (symmetric) and SD7080 (asymmetric) profiles and positioned at fo...
Gizem Irem Seyis, H. Tanürün, M. Seyhan· The Physics of Fluids· 0 citations
This study investigates the aerodynamic characteristics of a reusable rocket under a representative supersonic recovery condition of H = 28 km and M = 2.2. Numerical simulations are conducted to examine the effects of angle of attack, control-surface deflection, and nozzle jet location on the aerodynamic forces, moment...
Yao Wu, Xue-Qiang Liu· Journal of Physics, Conferen...· 0 citations
Circulation control is an efficient active flow control technique that enhances aerodynamic lift by injecting a tangential jet near the trailing edge, altering the circulation around the airfoil. This study investigates the influence of three key geometric parameters—Coanda surface radius, slot height, and jet angle—on...
Ya-Jun Shi, Ya-Ni Song, Xiao-Xu Du et al.· Machines· 0 citations
This article analyzes the aerodynamic characteristics of the NACA2412 and NACA23012 airfoils under low angles of attack. Computational fluid dynamics (CFD) numerical simulation is used to design geometric models and perform mesh generation, while the data were analyzed using a finite element method to calculate lift...
Ji-Xiang Huang· MATEC Web of Conferences· 0 citations
Dynamic stall governs the unsteady aerodynamic performance and loading of cross-flow turbine blades undergoing periodic angle-of-attack variations. This work presents an experimental investigation of static and dynamic stall on a NACA0021 airfoil in harmonic pitching motion at chord-based Reynolds numbers up to 6 × 105...
Emanuele Luzzati, A. Mariotti, M. Salvetti· Journal of Physics, Conferen...· 0 citations
In this paper, aerodynamic performance of three NACA airfoils, including NACA 2412, NACA 4412, and NACA 0012 are examined in two-dimensional CFD simulation to compare their aerodynamic performance. The current simulation is conducted at Re = 1.0 × 10
5
with turbulence model is able to predict adverse pressure gradi...
Congxiang Xue· MATEC Web of Conferences· 0 citations
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