Pre-Swirl Stator and Propeller Design for Varying Operating Conditions

Simone Saettone, Pelle Bo Regener, Poul Andersen

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Abstract

Over the last two decades, an increasing number of studies have been conducted to develop and improve energy saving devices (ESDs) in order to increase the propulsive effciency. One well-known example is the pre-swirlstator (PSS), which consists of an often asymmetric arrangement of fixed stator blades ahead of the propeller.This paper describes the hydrodynamic design of apre-swirl stator with radially variable pitch, paired with aconventional propeller. The aim is to achieve the highest possible effciency in various operating conditions, and to avoid effciency penalties in off-design operation.To investigate the propeller and stator designs and configurations in different operating conditions, the computationally inexpensive vortex-lattice method is used a sa first step to optimize the geometry in an initial parameter study. Then the flow over hull, stator and propelleris simulated in a CFD-based approach to confirm the results obtained in the first stage.
Original languageEnglish
Title of host publicationProceedings of the 13th International Symposium on PRActical Design of Ships and Other Floating Structures (PRADS' 2016)
EditorsUlrik Dam Nielsen, Jørgen Juncher Jensen
Number of pages8
PublisherTechnical University of Denmark
Publication date2016
ISBN (Electronic)978-87-7475-473-2
Publication statusPublished - 2016
Event13th International Symposium on Practical Design of Ships and Other Floating Structures (PRADS'2016) - Hotel Crowne Plaza, Copenhagen, Denmark
Duration: 4 Sep 20168 Sep 2016
Conference number: 13

Conference

Conference13th International Symposium on Practical Design of Ships and Other Floating Structures (PRADS'2016)
Number13
LocationHotel Crowne Plaza
CountryDenmark
CityCopenhagen
Period04/09/201608/09/2016

Keywords

  • Energy Saving Device
  • Pre-Swirl Stator
  • Vortex-Lattice Method
  • RANS-BEM Coupling

Cite this

Saettone, S., Regener, P. B., & Andersen, P. (2016). Pre-Swirl Stator and Propeller Design for Varying Operating Conditions. In U. Dam Nielsen, & J. Juncher Jensen (Eds.), Proceedings of the 13th International Symposium on PRActical Design of Ships and Other Floating Structures (PRADS' 2016) Technical University of Denmark.