A LABORATORY RAINFALL SIMULATOR FOR INFILTRATION AND SOIL DETACHMENT STUDIES

A laboratory rainfall simulator with high intensity precision and nearly uniform rain distribution was developed for studying rain infiltration into soils and soil detachability by rainfall. The rainfall simulator consists of an assembly of closely packed hypodermic syringes with plungers driven by a common plate. Rainfall intensity is determined by controlling the plunger speed at variable motor speeds. Rain is distributed uniformly by superpositioning three independent motions--rotation, and perpendicular and linear motions in the horizontal plane. Rainfall intensities were generally within 2.5% of predicted values. The average coefficient of variation of rain distribution for various rainfall intensities over a 100-cm-2 area was reduced from 31.9% with no motion to 8.5% with rotation and linear motions.

  • Corporate Authors:

    Soil Science Society of America

    677 South Segoe Road
    Madison, WI  USA  53711
  • Authors:
    • Roemkens, MJM
    • Glenn, L F
    • Nelson, D W
    • Roth, C B
  • Conference:
  • Publication Date: 1975-1

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 158-160
  • Serial:
    • Volume: 39
    • Issue Number: 1

Subject/Index Terms

Filing Info

  • Accession Number: 00083731
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 8 1975 12:00AM