- Tarım Bilimleri Dergisi
- Volume:25 Issue:3
- Measurement and Prediction of Total Friction Losses in Drip Irrigation Laterals with Cylindrical Int...
Measurement and Prediction of Total Friction Losses in Drip Irrigation Laterals with Cylindrical Integrated in-line Drip Emitters using CFD Analysis Method
Authors : Vedat DEMİR, Hüseyin YÜRDEM, Arzu YAZGI, Tuncay GÜNHAN
Pages : 354-366
Doi:10.15832/ankutbd.433830
View : 22 | Download : 10
Publication Date : 2019-09-05
Article Type : Research Paper
Abstract :The objective of this study was to predict total friction losses in drip irrigation laterals with cylindrical integrated inline emitters at different spacing using Computational Fluid Dynamics insert ignore into journalissuearticles values(CFD); simulation method. Two types of drip irrigation laterals with different technical specifications were used in the study. In the laboratory, the total friction losses were measured in the laterals for different velocities. In CFD analysis, standard k-ε, RNG k-ε, realizable k-ε, Reynolds Stress insert ignore into journalissuearticles values(RSM); with Linear Pressure-Strain insert ignore into journalissuearticles values(LPS); turbulence models and standard wall function, non-equilibrium wall function, enhanced wall treatment were considered. CFD simulation results were compared with experimental total friction losses in laterals. The highest prediction was obtained by RSM turbulence model with LPS using standard wall function with the lowest values of MAPE insert ignore into journalissuearticles values(2.96%); and RMSE insert ignore into journalissuearticles values(369 Pa);.Keywords : Drip irrigation, Pipe, Turbulence models, Computational Fluid Dynamics