The complex aerodynamics of a propeller at incidence involve multiple asymmetric flow conditions around the disk, with each originating from different physical phenomena. These asymmetries give rise to in-plane forces and out-of-plane moments that are difficult to model with traditional low-order computational aerodynamics methods. This paper presents a three-dimensional unsteady vortex lattice method with a free vortex ring wake formulation that has been developed to model these effects for propellers at incidence. Convergence quality is investigated with respect to simulation time, grid resolution, and time-step resolution. Solution accuracy is evaluated by comparing to computational fluid dynamics (CFD) analyses. Good agreement was found with CFD results. The paper concludes with a discussion on the challenges of modeling propellers at incidence with vortex lattice methods.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Development of an Unsteady Vortex Lattice Method to Model Propellers at Incidence


    Beteiligte:

    Erschienen in:

    AIAA Journal ; 60 , 1 ; 176-188


    Erscheinungsdatum :

    2021-09-27


    Format / Umfang :

    13 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Marine propellers in unsteady flow

    Keenan, David P | DSpace@MIT | 1989

    Freier Zugriff

    Viscous extension of the Unsteady Vortex Lattice Method

    Rezaei, Amir S. / dos Santos, Carlos R. / Taha, Haitham E. | AIAA | 2020


    Joukowski's vortex theory of propellers

    Watter, M. | Engineering Index Backfile | 1930