Design And Analysis Of A Delta-Wing Vortex Generator Based On CFD

In this paper,by analyzing the flow field of the triangular airfoil,a new delta-vortex generating device is proposed to simulate the tip vortex of the rotor.Firstly,the design of the triangular wing vortex generator was carried out,the flow field calculation model was established,the flow field meshing and numerical calculation of the triangular wing vortex generator were performed by using StarCCM + software,and the calculation results were obtained by using Tecplot software to obtain the vortex The effects of the swept angle,the angle of attack and the number of delta wings on the vortex structure and strength of the vortex generator were analyzed respectively.Based on this,the structural design of the delta wing vortex generator is carried out by using the three-dimensional modeling software CATIA,and the experimental model of the delta wing vortex generator is processed.The vortex generated by the delta wing vortex generator is measured by using the PIV flow field measurement system Profile parameters.By comparing the calculation results with the experimental results,the correctness of the calculation model and the calculation results are verified,and the parameters of the delta wing vortex generator that match the wind source used are determined.Finally,some suggestions on how to improve the vortex strength of the delta wing vortex generator are put forward.The results of this paper show that the vortex structure generated by the delta wing vortex generator basically agrees with that of the tip vortex of the rotor blade and can be used to simulate the tip vortex of the rotor wing for the experiment of vortex-vortex interference.