Iranian Journal of Irrigation & Drainage

Iranian Journal of Irrigation & Drainage

Optimization Of Inflow Rate And Cutoff Timeusing The Full Hydrodynamic Model

Document Type : Original Article

Authors
Elham Beykzadeh 1
Ali Naghi Ziaei 2
Kamran Davari 3
Hossein Ansari 3
1 - Graduated MSc student of Irrigation and Drainage, Ferdowsi University of Mashhad., Mashhad., Iran
2 Assistant Professor, Department of Water Engineering, College of Agriculture, Ferdowsi University of Mashhad., Mashhad., Iran
3 Associate, Professor, Department of Water Engineering, College of Agriculture, Ferdowsi University of Mashhad., Mashhad., Iran
Abstract
In this study, a complete hydrodynamic model was used to simulate all phases of the furrow irrigation. Two sets of field data, walker and Printz were adopted for the verification of the results. The good agreement was observed among the code, SIRMOD and field data.Then, an optimization scheme was used to determine the best inflow rate and cutoff time in Merkley irrigation. The inflow rate and cutoff time were determined based on the maximum objective function. Therefore application efficiency increased from 57% to 70% and irrigation requirement efficiency increased from 81% to 95%. Then two different scenarios for optimization were determined to obtain desirable efficiencies. In the first case it was assumed that requirement irrigation efficiency and distribution uniformity was greater than 90% and the maximum values for application efficiency to be selected in this area. Application efficiency 60%, requirement efficiency 98% and distribution uniformity 90% were obtained in this scenario. In the second case, it was assumed that requirement irrigation efficiency was greater than 90%, application efficiency was greater than 70% and deep percolation to be minimum in this area. application efficiency 79%, requirement irrigation efficiency 92% and deep percolation percentage 20% was the result of this scenario. Therefore, this numerical model according to desirable efficiencies could be implemented to enhance the surface irrigation scheduling and management.
Keywords
Numerical method
Furrow
optimization
Inflow rate
Cutoff time
امینی­زاده،م.ر.، لیاقت،ع.م.، محمودیان شوشتری،م و کوچک زاده،ص. 1385. ارائه یک حل صریح معادلات مدل اینرسی- صفر با تأثیر محیط خیس شده جهت شبیه سازی آبیاری جویچه­ای. پژوهش کشاورزی آب، خاک و گیاه در کشاورزی، جلد 6، شماره 3.
انصاری،ح. 1390. آبیاری سطحی؛ ارزیابی، طراحی و شبیه‌سازی. چاپ اول انتشارات جهاد دانشگاهی مشهد، مشهد.
بیک زاده،ا. 1391. مدل‌سازی عددی همزمان جریان سطحی و زیرسطحی در آبیاری شیاری، ابزاری جهت مدیریت آبیاری سطحی. پایان نامه کارشناسی ارشد. دانشگاه فردوسی مشهد.
تقی‌زاده،ز.، وردی نژاد،ر.، ابراهیمیان،ح.، خان محمدی،ن. 1391. ارزیابی مزرعه‌ای و تحلیل سیستم‌های آبیاری سطحی با WinSRFR(مطالعه موردی آبیاری جویچه‌ای). نشریه آب و خاک، جلد 26، شماره 6.
عباسی،ف.، محمودیان شوشتری،م.، پذیرا،الف. 1376. مدل اینرسی صفر برای تخمین عوامل طراحی آبیاری نواری. مجله علوم و فنون کشاورزی، جلد 28، شماره 3.
Banti,M., Zissis,Th and Anastasiadou-Partheniou,E. 2011.Furrow irrigation advance simulation using a surface-subsurface interaction model. Journal of Irrigation and Drainage Engineering, 137: 304-314.
Camacho,E., Lucena,C.P.,Canas,J.R and Alcaide, M. 1997. IPE: Model for management and  control of furrow irrigation in real time. Journal of Irrigation and Drainage Engineering, 123:264-269.
Clemmens,A.J and Strelkoff, T. 2011. Zero-inertia recession for kinematic wave model. Journal of Irrigation and Drainage Engineering,137: 263-266.
Dholakia,M., Misra,R and Zaman,M.S. 1997. Simulation of border irrigation system using explicit MacCormack finite difference method. Agricultural Water Management, 36: 181-200.
Ebrahimian,H., Liaghat,A. 2011.Field evaluation of various mathematical models for furrow and border irrigation systems. Soil and Water Research, 6: 91-101.
‌Gillies,M.H. 2008. Managing the effect of infiltration variability on the performance of surface irrigation.Ph.D.thesis.Faculty of Engineering and Surveying. University of Southern Queensland. Australia.
Raghuwanshi,N.S., Wallender,W.W. 1999. Forecasting and optimizing furrow irrigation management decision variables. Irrigation Science, 19, 1-6.
Reddy,M.J. 1989.Integral equation solutions to surface irrigation. Journal of Agricultural  Engineering Research,42, 251-265.
Walker,W.R. 2005. Multilevel calibration of furrow infiltration and roughness.Journal of Irrigation and Drainage Engineering, 131:129-136.
Walker,W.R. 2003. SIRMOD III surface irrigation design, evaluation and simulatio  software, user’s guide and technical documentation. Utah State University, Logan, Utah.
Walker,W.R. 1989.SIRMOD a model of surface irrigation, Utah State University, Logan, Utah.
Zerihun,D., Furman,A., Warrick,A.W and Sanchez,C.A. 2005. Coupled surface-subsurface flow modelfor improved basin irrigation management. Journal of Irrigation and Drainage Engineering, 131: 111-128.
 
 
 
 
Iranian Journal of Irrigation & Drainage
Volume 8, Issue 2 - Serial Number 46
November and December 2014
Pages 377-385