HYDRODYNAMIC DESIGN PRINCIPLES OF PUMPS AND DUCTING FOR WATERJET PROPULSION

The purpose of this report on the special form of hydrodynamic propulsion known as waterjet propulsion is to make the viewpoint of a pump designer known to the developers of waterjet devices. More specifically, it is concerned with the contribution that the pump designer can make in order to give the designer of the entire propulsion plant the greatest possible freedom to find and use the most favorable overall arrangement. There is no attempt to cover the entire field of waterjet propulsion. Moreover, only aspects of preliminary design are considered because it is in this stage of development that irreparable mistakes can be made. The report assumes that the reader is familiar with the general characteristics of hydrofoil and captured air-cushion craft to which this type of propulsion mainly applies. Following an outline of the principal problems involved in the propulsion of high-speed surface craft, the design principles of hydrodynamic (centrifugal and axial flow) pumps are described and later applied to the design of waterjet propulsion pumps. The intake and duct problem is then described and designs are illustrated for a few typical overall arrangements. The report concludes with an example of propulsion pump and duct design for a particular set of specifications. This example can serve as the foundation for additional preliminary design studies.

• Corporate Authors:

  Naval Ship Research and Development Center

  Systems Development Department
  Bethesda, MD  United States  20034
• Authors:
  • Wislicenus, G F
• Publication Date: 1973-6

Media Info

• Features: References;
• Pagination: 171 p.

Subject/Index Terms

• TRT Terms: Ducts; Hydrofoils; Performance; Water pumps; Waterjet propelled craft; Waterjets
• Old TRIS Terms: Ducting; Hydrofoil propulsion machinery; Waterjet propulsion; Waterjet pump performance
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00052137
• Record Type: Publication
• Source Agency: Naval Ship Research and Development Center
• Report/Paper Numbers: #3990 R&D Rpt
• Contract Numbers: N00014-70-C-0019
• Files: TRIS
• Created Date: Apr 26 1974 12:00AM