Flow measurements at drop structures for irrigation system management in Sri Lanka

Sakthivadivel, R. and Merrey, D.J. (1992) Flow measurements at drop structures for irrigation system management in Sri Lanka. Project Report. International Irrigation Management Institute, Colombo, Sri Lanka.

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Abstract

Two methods are suggested in this publication which provide simplified and cost-effective proceduresfor calibrating drop structures and/or updating drop structure calibration curves. The suggested procedures do not require altering of irrigation flow for calibration purposes. By just measuring one single discharge and the corresponding head at the upstream gauge post, the methods suggested makeit possible to update the already existing calibration curve and also facilitate obtaining a similar curve for drop structures also of similar geometry. The convenience of the proposed methods outweighs the sacrifice in rigor and precision; in any event, the resulting degree of accuracy issufficient for most practical purposes

Item Type: Monograph (Project Report)
Uncontrolled Keywords: Irrigation; Water management; Hydraulic structures; Flow measurement; Sri Lanka; Case studies; RP8420
Author Affiliation: IIMI
Subjects: Agricultural Engineering
Divisions: General
Depositing User: Mr Daneti Raju
Date Deposited: 07 May 2014 10:04
Last Modified: 07 May 2014 10:04
URI: http://eprints.icrisat.ac.in/id/eprint/12765

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