摘要
In this paper an investigation of the ground vortex,the significant aerodynamic phenomenonin rotor aerodynamics on nap-of-the- earth,is carried out.Based on the analysisof the rotor wake near the ground,a theoretical method has been established which canbe used for calculating the ground vortex—its longitudinal position and strength.Thecomputational results are compared with avaUable experimental data and found in goodagreement.
In this paper an investigation of the ground vortex,the significant aerodynamic phenomenon in rotor aerodynamics on nap-of-the- earth,is carried out.Based on the analysis of the rotor wake near the ground,a theoretical method has been established which can be used for calculating the ground vortex—its longitudinal position and strength.The computational results are compared with avaUable experimental data and found in good agreement.
