Dimensionless Numerical Approaches for the Performance Prediction of Marine Waterjet Propulsion Units
Joint Authors
Benvenuto, Giovanni
Figari, Massimo
Campora, Ugo
Altosole, Marco
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
2012-06-25
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
One of the key issues at early design stage of a high-speed craft is the selection and the performance prediction of the propulsion system because at this stage only few information about the vessel are available.
The objective of this work is precisely to provide the designer, in the case of waterjet propelled craft, with a simple and reliable calculation tool, able to predict the waterjet working points in design and off-design conditions, allowing to investigate several propulsive options during the ship design process.
In the paper two original dimensionless numerical procedures, one referred to jet units for naval applications and the other more suitable for planing boats, are presented.
The first procedure is based on a generalized performance map for mixed flow pumps, derived from the analysis of several waterjet pumps by applying similitude principles of the hydraulic machines.
The second approach, validated by some comparisons with current waterjet installations, is based on a complete physical approach, from which a set of non-dimensional waterjet characteristics has been drawn by the authors.
The presented application examples show the validity and the degree of accuracy of the proposed methodologies for the performance evaluation of waterjet propulsion systems.
American Psychological Association (APA)
Altosole, Marco& Benvenuto, Giovanni& Figari, Massimo& Campora, Ugo. 2012. Dimensionless Numerical Approaches for the Performance Prediction of Marine Waterjet Propulsion Units. International Journal of Rotating Machinery،Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-463349
Modern Language Association (MLA)
Altosole, Marco…[et al.]. Dimensionless Numerical Approaches for the Performance Prediction of Marine Waterjet Propulsion Units. International Journal of Rotating Machinery No. 2012 (2012), pp.1-12.
https://search.emarefa.net/detail/BIM-463349
American Medical Association (AMA)
Altosole, Marco& Benvenuto, Giovanni& Figari, Massimo& Campora, Ugo. Dimensionless Numerical Approaches for the Performance Prediction of Marine Waterjet Propulsion Units. International Journal of Rotating Machinery. 2012. Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-463349
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-463349