Study of the vortex dynamics

An approximate method is proposed for determining the aerodynamic effect of coherent vortex structures (CVS) of atmospheric turbulence on an aircraft. As a source of the CVS the vortex wind wakes arising when the atmospheric wind flows around the mountain massif of the Son Tra peninsula, located near the Da Nang airport, and the vortex wake behind the Su-27 type aircraft in the landing configuration are considered.

20p viwolverine 11-07-2023 9 2   Download

This study investigated the vortex dynamic of wing canard delta configurations of the Saab JAS Gripen C-like model which create different wing planform than other fighters.

9p lucastanguyen 01-06-2020 11 2   Download

This paper elucidates the study of the vortex dynamics of a fighter with a bird's body type fuselage (BBTF), at constant canard deflection angle, using computational fluid dynamics (CFD).

13p lucastanguyen 01-06-2020 27 1   Download

The use of fluid dynamics computation (CFD) based on vortex strength had attained detailed and clear visualization and aerodynamic data in uncovering the vortex dynamics occurrence. It was uncovered that at the AoA 400 , the modified Sukhoi Su-30 with Gripen wing was capable of creating the most potent flow relation from the main wing caused by the canard. It was clear that the formation of the merging of the vortices above the canard of the fighter was obviously evident resulting into stronger vortices.

11p cleopatrahuynh 01-06-2020 10 1   Download

Analysis results highlight that the shear stress distribution and vortex flow regime are serious affected by the leaflet opening situation and valve geometry. Maximum shear stress takes place near the center of leaflet trailing edge and near the aortic root where jet impingement takes place. The analysis results can be used to specify the requirements of crucial criteria of prosthesis aortic valve and to optimize the prosthesis aortic design.

9p girlsseek 27-02-2019 17 0   Download