Predicting Unsteady Loads in Marine Propulsor Crashback Using Large Eddy Simulation
Joint Authors
Verma, Aman
Mahesh, Krishnan
Jang, Hyunchul
Source
International Journal of Rotating Machinery
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-05
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Propulsor crashback is an off-design operating condition where a propulsor rotates in the reverse direction to yield negative thrust.
Crashback is characterized by the interaction of the free stream with the reverse flow generated by propulsor rotation.
This causes a highly unsteady vortex ring which leads to flow separation and unsteady forces and moments on the blades.
Large eddy simulation (LES) is performed for marine propulsors in crashback for various configurations and advance ratios and validated against experiments.
The predictive capability of LES as a tool for propulsor crashback is demonstrated on an open propulsor, open propulsor with a submarine hull, and ducted propulsor with and without stator blades.
LES is in good agreement with experiments for the mean and RMS levels, and spectra of the unsteady loads on the propulsors.
American Psychological Association (APA)
Jang, Hyunchul& Verma, Aman& Mahesh, Krishnan. 2012. Predicting Unsteady Loads in Marine Propulsor Crashback Using Large Eddy Simulation. International Journal of Rotating Machinery،Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-480173
Modern Language Association (MLA)
Jang, Hyunchul…[et al.]. Predicting Unsteady Loads in Marine Propulsor Crashback Using Large Eddy Simulation. International Journal of Rotating Machinery No. 2012 (2012), pp.1-12.
https://search.emarefa.net/detail/BIM-480173
American Medical Association (AMA)
Jang, Hyunchul& Verma, Aman& Mahesh, Krishnan. Predicting Unsteady Loads in Marine Propulsor Crashback Using Large Eddy Simulation. International Journal of Rotating Machinery. 2012. Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-480173
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-480173