Author: Richard A. CUMMING
Publisher:
ISBN:
Category :
Languages : en
Pages : 55
Book Description
An experimental investigation of three methods of increasing the leading-edge thickness of supercavitating propeller sections was conducted. The purpose of the investigation was to determine which method could be used that would result in the least impairment of the hydrodynamic performance for a given increase of the leading-edge thickness. The three methods were: (1) arbitrary thickening of the section beyond the bounds of the theoretical cavity; (2) use of a greater angle of attack to increase the thickness of the theoretical cavity and, hence, the allowable section thickness; and (3) addition of a parabolic thickness to both the face and back of the section. Five supercavitating propeller models incorporating these three methods of increasing the section thickness were tested in a water tunnel, for a range of various cavitation numbers and advance coefficients. The results indicate that parabolic thickening of the cavity is superior to the arbitrary thickening of the section beyond the theoretical cavity boundary. Use of an increased angle of attack leads to a greater loss of performance than do the other two methods, but it has excellent resistance to face cavitation and, therefore, is recommended where resistance to face cavitation is of great improtance. (Author).
An Experimental Evaluation of Three Methods for Increasing the Leading Edge Thickness of Supercavitating Propellers
Technical Abstract Bulletin
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 776
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 776
Book Description
Small Craft Design Guide
Author: Joseph G. Koelbel
Publisher:
ISBN:
Category : Boatbuilding
Languages : en
Pages : 274
Book Description
Publisher:
ISBN:
Category : Boatbuilding
Languages : en
Pages : 274
Book Description
U.S. Government Research & Development Reports
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1014
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1014
Book Description
Government-wide Index to Federal Research & Development Reports
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1086
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1086
Book Description
Supercavitating Propellers-design Theory and Experimental Evaluation
Author: Bohyun Yim (Larimer, G, Peck, J, David W. Taylor Naval Ship Research)
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Marine Propulsion
Author: J. F. Sladky
Publisher:
ISBN:
Category : Ship propulsion
Languages : en
Pages : 246
Book Description
Publisher:
ISBN:
Category : Ship propulsion
Languages : en
Pages : 246
Book Description
International Committee Reports, Introductory Remarks, Discussions, and Conclusions
Author:
Publisher:
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Category : Hydrodynamics
Languages : en
Pages : 880
Book Description
Publisher:
ISBN:
Category : Hydrodynamics
Languages : en
Pages : 880
Book Description
U. S. Government Research and Development Reports
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1452
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1452
Book Description
Government Reports Announcements
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 844
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 844
Book Description