Construction and calibration of a rainfall simulator uri icon

abstract

  • A portable rainfall simulator featuring a rotating disc and nozzle, has been developed for use in field studies of erosion, infiltration, and runoff processes. Variable intensities of simulated rainfall ranging from 15 to 150mm h?1 are produced by choice of appropriate nozzles and slot apertures in the rotating disc. The duration of the simulation can be precisely controlled by a shutter mechanism. The measured uniformity coefficients ranged from 91.2 to 94.3%. The kinetic energy of the simulated rainfall at intensities above 30 mm h?1 was close to that of natural rainfall

publication date

  • 1989
  • 1989