A Simple Model to Estimate Wetted Soil Volume from the Trickle by Use of the Dimensional Analysis Technique

  • Farhad Mirzaei
  • Mojtaba Hatami
  • Fatemeh Mousazadeh
Conference paper

Abstract

In efficient utilization of irrigation water resources, it is very important to determine dimension diameter (d) and depth (z) of wetted soil (wetting onion) at different times from commencement of irrigation (t). In this research, by utilization of physical factors effective in volume of wetted soil under point feeding source and by use of the Buckingham Π theorem and dimensional analysis, some dimensionless numbers were defined. Then the relations obtained by dimensional analysis were compared with laboratory data collected from a physical model. At last, a number of scientific-experimental equations were obtained that showed a good agreement with the experimental results. This indicates that the derived empirical functions could be used properly for designing drip irrigation system.

Key words

water resource dimensional analysis Buckingham Π theorem wetting soil volume 
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Copyright information

© Tsinghua University Press, Beijing and Springer-Verlag GmbH Berlin Heidelberg 2009

Authors and Affiliations

  • Farhad Mirzaei
    • 1
  • Mojtaba Hatami
    • 2
  • Fatemeh Mousazadeh
    • 3
  1. 1.Faulty of water and soil Eng.University of TehranKarajIran
  2. 2.Water engineering DeptMazanderan UniversityIran
  3. 3.Ab&Khak consulting EngineeringIran

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