FALL VELOCITY OF IRREGULAR SHAPED PARTICLES

THE DETERMINATION OF THE FREE-FALL VELOCITY OF IRREGULARLY SHAPED PARTICLES IN VISCOUS FLUIDS IS PRESENTED. A SHAPE PARAMETER IS PROPOSED WHICH CORRELATES REYNOLDS NUMBER WITH DRAG COEFFICIENT TO DESCRIBE THE MOTION OF IRREGULAR SHAPES. THIS SHAPE PARAMETER RESULTS IN A USEFUL REYNOLDS NUMBER- DRAG COEFFICIENT RELATION. DATA FOR ANALYSIS WERE COLLECTED FROM TESTS OF NATURAL GRAVEL-SIZED PARTICLES OF VARIOUS SHAPES AND SIZES SUPPLEMENTED BY LARGER REGULAR GEOMETRIC SHAPES. THE BASIC MOTIONS OF A PARTICLE IN FREE-FALL ARE CLASSIFIED AND ANALYZED CONSIDERING CAUSES SUCH AS FLOW SEPARATION AND VORTEX FORMATION. /ASCE/

• Supplemental Notes:
  • Vol 94, No HY 3, PROC PAPER 5949, PP 721-737, 11 FIG, 4 TAB,
• Authors:
  • ALGER, G R
  • Simons, D B
• Publication Date: 1968-5

Media Info

• Serial:
  • Journal of the Hydraulics Division
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Analysis; Drag; Falling; Flow; Fluid dynamics; Hydraulics; Particles; Reynolds number; Viscosity; Vortices
• Uncontrolled Terms: Fluid flow
• Old TRIS Terms: Falling bodies
• Subject Areas: Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00204128
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 24 1994 12:00AM