Fitting Infiltration Equations using Double Ring Infiltrometer to Design and Evaluate Irrigation Methods
Mohammed Hussain1, Y. Kamala Raju2
1Mohammed Hussain, Dept. of civil engineering, Gokaraju Rangaraju Institute of Engineering and Technology (GRIET), Hyderabad, India.
2Y. Kamala Raju, Dept. of Civil Engineering, Gokaraju Rangaraju Institute of Engineering and Technology (GRIET), Hyderabad, India.

Manuscript received on November 20, 2019. | Revised Manuscript received on November 28, 2019. | Manuscript published on 30 November, 2019. | PP: 7751-7754 | Volume-8 Issue-4, November 2019. | Retrieval Number: D5379118419/2019©BEIESP | DOI: 10.35940/ijrte.D5379.118419

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Abstract: In the present Outcome Based Education in Engineering, higher order skills in psychomotor domain are required as per Dave’s Taxonomy, Simpson’s Taxonomy and Anita Harrow’s Taxonomy. Not only computational skills are required but also experimental skills to develop the engineering skills life long. According to Walter J. Rawls, infiltration and soil water movement play a key role in surface runoff, groundwater recharge, evapotranspiration, soil erosion and transport of chemicals in surface and subsurface waters. The ASTM International Standard D 3385- 03 describes the “ Standard Test Method for Infiltration Rates of Soils in field using Double Ring Infiltrometer”. The present paper describes the methodology of development of Kosti akov Infiltration Equations from the field tests of Double Ring Infiltrometer, as part of various student projects of design and evaluation of irrigation methods. As properties of soil also influence the infiltration rate, soil properties are also determined. In one test, the Kostiakov infiltration equation fitted is in the form y=0.44t0.65. The basic infiltration rate is 44 millimeters/hour. Other methods of infiltration equations are briefly mentioned.
Keywords: ASTM International Standard, Irrigation Methods, Infiltration Rate, Kostiakov Infiltration Equation
Scope of the Article: Probabilistic Models and Methods.