A combined vortex lattice lifting line method for unsteady propeller calculations

Publikationstyp
Conference Paper
Date Issued
2021-06
Sprache
English
Author(s)
Büsken, Andreas  
Krüger, Stefan  
Institut
Entwerfen von Schiffen und Schiffssicherheit M-6  
TORE-URI
http://hdl.handle.net/11420/10629
Volume
6
Article Number
V006t06a057
Citation
International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2021)
Contribution to Conference
40th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2021  
Publisher DOI
10.1115/OMAE2021-61807
Scopus ID
2-s2.0-85117148792
This paper presents a Combined Method for the calculation of propeller forces in inhomogeneous inflow. It consists of an extended Goldstein approach based on Lifting Line Theory and a Vortex Lattice Method. After a brief overview of both methods is given, the coupling strategy is described and the additional modifications are explained. A correction factor accounting for the vortex which develops under a separated and later reattached flow on the suction side of the propeller blade is implemented as the first modification. Further, the Lamb-Oseen vortex model is used for the vortices in the free vortex system of the propeller. Finally, some results achieved with the described method are presented and compared to measured values.
Subjects
Combined method
Free vortex system
Lifting line theory
Vortex lattice method