A VISCOUS-FLOW ANALYSIS FOR THE QUASI-STATIC PRESSURE-FLOW-DISPLACEMENT CHARACTERISTICS OF PERIPHERAL JET FLUID SUSPENSIONS

A viscous-flow analysis is presented which is capable of predicting the static and quasi-static behavior of peripheral jet fluid suspensions operating in the incompressible flow regime. The theory accounts for the observed discrepancies between experiment and inviscid flow analyses by including entrainment and turbulent mixing in the jet and wall boundary layer effects. Equilibrium cushion pressure is predicted within 3 to 4 percent compared with errors up to 40% which occur in even the most conservative inviscid theories. The analysis is used to develop solutions for the non-equilibrium pressure-flow-displacement characteristics required in dynamic analyis of heave motion. Comparison of theory and experiment indicates the slopes of these characteristics (the sensitivities) can be predicted within about 10 percent over the range of jet Reynolds numbers of interest for vehicle suspensions. Curves and digital computer programs are included which permit peripheral jet performance to be determined as a function of geometry, supply pressure and Reynolds number. (Author)

• Corporate Authors:

  Massachusetts Institute of Technology

  Engineering Projects Laboratory
  Cambridge, MA  United States 
• Authors:
  • Ercan, Y
  • Richardson, H H
• Publication Date: 1969-2-1

Media Info

• Pagination: 111 p.

Subject/Index Terms

• TRT Terms: Intelligent transportation systems; Suspensions
• Old TRIS Terms: Advanced systems
• Subject Areas: Operations and Traffic Management; Railroads;

Filing Info

• Accession Number: 00039160
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: DSR-76110-10
• Contract Numbers: DOT-C-85-65
• Files: TRIS
• Created Date: Nov 24 1972 12:00AM