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Open-Water Thrust and Torque Predictions of a Ducted Propeller System with a Panel Method
Joint Authors
Bosschers, J.
Falcão de Campos, J. A. C.
Baltazar, J.
Source
International Journal of Rotating Machinery
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-06-05
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
This paper discusses several modelling aspects that are important for the performance predictions of a ducted propulsor with a low-order Panel Method.
The aspects discussed are the alignment of the wake geometry, the influence of the duct boundary layer on the wake pitch, and the influence of a transpiration velocity through the gap.
The analysis is carried out for propeller Ka4-70 operating without and inside a modified duct 19A, in which the rounded trailing edge is replaced by a sharp trailing edge.
Experimental data for the thrust and torque are used to validate the numerical results.
The pitch of the tip vortex is found to have a strong influence on the propeller and duct loads.
A good agreement with the measurements is achieved when the wake alignment is corrected for the presence of the duct boundary layer.
American Psychological Association (APA)
Baltazar, J.& Falcão de Campos, J. A. C.& Bosschers, J.. 2012. Open-Water Thrust and Torque Predictions of a Ducted Propeller System with a Panel Method. International Journal of Rotating Machinery،Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-474456
Modern Language Association (MLA)
Baltazar, J.…[et al.]. Open-Water Thrust and Torque Predictions of a Ducted Propeller System with a Panel Method. International Journal of Rotating Machinery No. 2012 (2012), pp.1-11.
https://search.emarefa.net/detail/BIM-474456
American Medical Association (AMA)
Baltazar, J.& Falcão de Campos, J. A. C.& Bosschers, J.. Open-Water Thrust and Torque Predictions of a Ducted Propeller System with a Panel Method. International Journal of Rotating Machinery. 2012. Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-474456
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-474456