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Validation of actuator disc circulation distribution for unsteady virtual blades model
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作者 A.N.Kusyumov S.A.Kusyumov +1 位作者 S.A.Mikhailov G.N.Barakos 《Theoretical & Applied Mechanics Letters》 CSCD 2021年第6期350-354,共5页
The actuator disc method is an engineering approach to reduce computer resources in computational fluid dynamics(CFD)simulations of helicopter rotors or aeroplane propellers.Implementation of an actuator disc based on... The actuator disc method is an engineering approach to reduce computer resources in computational fluid dynamics(CFD)simulations of helicopter rotors or aeroplane propellers.Implementation of an actuator disc based on rotor circulation distribution allows for approximations to be made while reproducing the blade tip vortices.Radial circulation distributions can be formulated according to the nonuniform Heyson-Katzoff“typical load”in hover.In forward flight,the nonuniform disk models include“azimuthal”sin and cos terms to reproduce the blade cyclic motion.The azimuthal circulation distribution for a forward flight mode corresponds to trimmed conditions for the disk rolling and pitching moments.The amplitude of the cos harmonic is analysed and compared here with presented in references data and CFD simulations results. 展开更多
关键词 Surface circulation distribution Unsteady actuator disk model Blade tip vortices reproduction
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