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JOURNAL OF FACULTY OF CIVIL ENGINEERING
INTERNATIONAL CONFERENCE
CONTEMPORARY ACHIEVEMENTS IN CIVILENGINEERING 25, 2014.y., pp. 661-667


UNCERTAINTY ASSESSMENT OF RAINFALL SIMULATOR UNIFORMITY COEFFICIENT
 
DOI: 10.14415/konferencijaGFS2014.088
UDC: 621.647.3:628.1.037
CC-BY-SA 4.0 license
Author : Gabrić, Ognjen; Prodanović, Dušan; Plavšić, Jasna
 
 Summary:
 In the past sixty years several methods for the assessment of rainfall distribution over the surface has developed, but the method proposed by Christiansen is mostly used. Depending on the type of simulator, type of the nozzle and the size of a surface, Christiansen’s coefficient varie from 0.6 to 0.95. This paper presents a method for determining Christiansen's coefficient of uniformity and assessment of its ambiguity due to measurement uncertainty of associated equipment. Rainfall intensities of up to 3.1 mm/min with a uniformity coefficient up to 0.85 can be achieved with this simulator.
 
 Keywords:
 Uniformity coefficient, rainfall simulator, uncertainty