SOME COMMENTS ON THE MODELING OF THE COLLAPSING WAKE

The problem of scaling the phenomena of the collapse of the wake of a self-propelled body in a stratified fluid is examined. Conditions are derived such that the Froude number (based on body speed, length and Vaisala period) is equal for both model and prototype. Conditions are also obtained for the existence of buoyancy and inertial subranges in the wake turbulence. These conditions are applied to determine the smallest size model for which the phenomenon of wake growth and collapse is properly scaled from the prototype. (Author)

• Corporate Authors:

  Ocean and Atmospheric Science, Incorporated

  Dobbs Ferry, NY  United States 
• Authors:
  • Kuo, EYT
  • Grosch, C E
• Publication Date: 1972-1-6

Media Info

• Pagination: 12 p.

Subject/Index Terms

• TRT Terms: Buoyancy; Correlation analysis; Dissipation; Factors (Statistics); Fluids; Froude number; Hydrodynamics; Mathematical models; Propellers; Stratification; Tests; Time; Turbulence; Two phase flow; Wakes; Weighing devices
• Uncontrolled Terms: Model tests; Scale; Scale effect
• Old TRIS Terms: Dissipation factor; Hydrodynamic configurations; Marine propellers; Model scaling; Self propelled bodies; Self propulsion; Stratified flow; Stratified fluids; Wake analysis
• Subject Areas: Data and Information Technology; Design; Energy; Hydraulics and Hydrology; Marine Transportation;

Filing Info

• Accession Number: 00048330
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: OAS-TR-72-065 Tech Rpt
• Contract Numbers: N00014-72-C-0127, ARPA Order-1910
• Files: TRIS
• Created Date: Nov 14 1973 12:00AM