Effects of a trapped vortex cell on thick wing profile

PRELIMINARY STUDY ON THE NEAR-FIELD WAKE OF NACA0012 WINGTIP VORTICES UNDER LOW-SPEED CONDITIONS

The wingtip vortex is a complex aerodynamic phenomenon that impacts the operational safety of aircraft. Previous studies have indicated the occurrence of an accelerated axial flow (jet-like flow) in the vicinity of the vortex core. This study focuses on elucidating the characteristics of this accelerated flow as well a...

Vortex Shedding Modes of a Vertical Plate in Close Proximity to a Smooth Wall at Low Reynolds Number

A series of two-dimensional numerical simulations were performed by solving the Navier–Stokes equations to investigate the flow past a vertical plate in close proximity to a smooth wall at a fixed Reynolds number of Re = 150. The effects of the gap ratio G/L, defined as the wall-to-plate distance over the plate length,...

Low-Reynolds-Number Aerodynamics of Airfoils with Sharp Leading Edges

The aerodynamic performance of conventional (rounded leading-edge) and reversed (sharp leading-edge) airfoils is investigated in the low Reynolds number regime. Computations are performed in the range Re ∈ [1x108, 8x104]. The results show significant differences in the flow structures and the aerodynamic characteristic...

Parametric Optimization of the Aerodynamic Behavior of a Gas Turbine Blade : Influence of the Angle of Attack and the Reynolds Number

This study performs a Computational Fluid Dynamics (CFD) analysis of turbulent flow around a gas turbine blade, investigating the effects of angle of attack  and Reynolds number Re on aerodynamic performance. The objective was to quantify their impact on the lift CL, drag CD, and pressure Cp coefficients. Simulations u...

Influence of delta wing vortex generator on heat transfer and fluid flow characteristics in a rectangular duct

Experimental investigation of the aerodynamic performance of symmetric and asymmetric aero-shaped vortex generators

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...