Numerical Simulation Study Of Airplane Tail Vortex Field Manual Intervention

At present,the massive air traffics have been conflicted with the limited airport capacity,and the most important factor is the wake.To reduce the aircraft wake separation based on the safety has been the key problem of researchers.In order to deepen the understanding of wake and find a way to speed up the reduction of wake,positive explorations were carried out in this paper.First,In order to solve the meshing problem,the stitching algorithm was proposed.With the method,a huge mesh quantity can be avoided in far-field wake vortex numerical simulation.Further the feasibility was verified through the error analysis.Based on the first step,secondly,we explore the characteristics of wake vortex in far-field based on feasible stitching algorithm.The evolution rules of the far-field wake vortex characteristics in the process of motion was obtained,which laid the foundation for the further research of the reduction method of the vortex.Besides,this article explored the wake evolution rule that when the vortex was contacted with the wall and secondary rebound to induce the RayleighLudwieg instability through add the artificial wall at the place where the vortex formed and analysis the parameter changes of vortex core position and the number of vortex etc.After second vortex effect and analysis the reasons that caused vortex dissipated quickly.On the basis of the above,this article explored the feasibility of the artificial intervention mechanism by using the manual intervention method with the mode of airport terminal mounting plates.Based on the numerical simulation experiment and the error analysis,the accuracy conclusion of splicing method was obtained.It shows that the rebound vortex has obvious promoting effect on the attenuation of the main vortex.Finally,the article proved that the manual intervention method can be used for speeding up the vortex dissipation with the method of mounting plates.