Simulation of turbulent effective wakes for propellers in off-design conditions by a correction factor approach

Antonio Sánchez-Caja (Corresponding Author), Jussi Martio, Ville M. Viitanen, Timo Siikonen

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)


This paper presents a procedure for the estimation of propeller effective wakes in oblique flows. It shows how a recently developed method for controlling coupling errors can be applied to analyze propellers operating in off-design conditions. The approach allows the use of fast potential flow methods for the representation of the propeller in the context of viscous flow solvers and works accurately for a wide range of advance numbers and incidence angles with a minimum computational cost. The new method makes it possible to disclose flow phenomena on the effective wake that were hidden in conventional approaches of effective wake simulation. Different application cases are analyzed, such as a propeller-shaft configuration in inclined flow, a pod propulsor in an oblique inflow, and a ship hull advancing at a yaw angle. A dipole-like distortion on the effective wake is unmasked for a uniform flow incident to a propeller mounted on an inclined shaft. The flow component perpendicular to the axis is found to be responsible for the distortion. The effect of the direction of propeller rotation on the effective wake is illustrated for a single-shaft ship moving at a yaw angle. In particular, keel vortices are either attracted to or repelled from the propeller disk depending on the sign of the yaw angle or alternatively on that of the propeller rotation.
Original languageEnglish
Pages (from-to)1014-1025
JournalJournal of Marine Science and Technology
Issue number4
Early online date19 Jan 2021
Publication statusPublished - Dec 2021
MoE publication typeA1 Journal article-refereed


Dive into the research topics of 'Simulation of turbulent effective wakes for propellers in off-design conditions by a correction factor approach'. Together they form a unique fingerprint.

Cite this