Determination of the Hydraulic Properties of a Flat Type Drip Emitter using Computational Fluid Dynamics

Authors : Vedat DEMİR, Hüseyin YÜRDEM, Arzu YAZGI, Tuncay GÜNHAN

Pages : 226-235

Doi:10.15832/ankutbd.492686

View : 18 | Download : 8

Publication Date : 2020-06-04

Article Type : Research Paper

Abstract :The objective of this study was to determine the hydraulic properties of a flat type emitter using Computational Fluid Dynamics with different turbulence models and model options. In addition, it is aimed to investigate the effects of the emitter hydraulic properties on the design when the same emitter is used in drip irrigation pipes with different wall thicknesses. The lowest mean percentage deviation between the measured flow rates and the calculated flow rates with turbulence models was found as 0.70% and 0.74% in the SST k- and Stress-Omega RSM turbulence model for the wall thickness of 0.25 mm pipe, respectively. Also, the mean percentage deviation for the laminar turbulence model was found to be -1.01%. The minimum MAE insert ignore into journalissuearticles values(0.021 L h-1); and RMSE insert ignore into journalissuearticles values(0.028 L h-1); values were found in the SST k- low-Re corr. turbulence model and the minimum MAPE insert ignore into journalissuearticles values(1.068%); was found in the laminar turbulence model.
Keywords : Turbulence models, emitter design, CFD