STUDY OF HYDRAULIC FLOW INSIDE THE EMITTERS BY COMPUTATIONAL FLUID DYNAMICS

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DELGHANDI MAHDI; BOROUMANDNASAB S.; BEHZAD MAJID; GHALAMBAZ M.

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Paper Information

Journal: Iranian Journal of Irrigation and Drainage Year:2009 | Volume:3 | Issue:1 Page(s): 57-67

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Information Journal Paper

Title

STUDY OF HYDRAULIC FLOW INSIDE THE EMITTERS BY COMPUTATIONAL FLUID DYNAMICS

Author(s)

DELGHANDI MAHDI | BOROUMANDNASAB S. | BEHZAD MAJID | GHALAMBAZ M. | Issue Writer Certificate

Keywords

EMITTERQ2

COMPUTATIONAL FLUID DYNAMICS (CFD)Q2

LAMINARQ2

TURBULENTQ3

PRESSURE- DISCHARGE RELATIONSHIPQ3

Abstract

Production of a suitable EMITTER need time and is expensive. On the other hand, because of stnall size and complex structure of labyrinth-channel used in most of drip EMITTERs, it is not possible to observe the flow behavior of water passing through the channel. In this study, the flow in labyrinth channels was simUlatedby using the method of computational fluid dynamics (CFD) to calculate the distributions of pressure and velocity of the flow. And relationship between pressure and rate of discharge under six levels of pressure were studied. For this purpose, three samples of one type EMITTER were selected. The EMITTERs were destroyed and sizeSof those channels were calculated by photography with Scanning Electronic Microscope (SEM). To calculate the relationship between pressure and rate of discharge as well as simulation of flow in EMITTERs' channels using Computational Fluid Dynamics (CFD), LAMINAR flow model and turbulence model was applied. The results were compared with the pressure and flow rate from laboratory test. Results of simulated data showed a good agreement with the experimental data and also difference between LAMINAR and turbulence models were not significant.

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APA: Copy

DELGHANDI, MAHDI, BOROUMANDNASAB, S., BEHZAD, MAJID, & GHALAMBAZ, M.. (2009). STUDY OF HYDRAULIC FLOW INSIDE THE EMITTERS BY COMPUTATIONAL FLUID DYNAMICS. IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE, 3(1), 57-67. SID. https://sid.ir/paper/131632/en

Vancouver: Copy

DELGHANDI MAHDI, BOROUMANDNASAB S., BEHZAD MAJID, GHALAMBAZ M.. STUDY OF HYDRAULIC FLOW INSIDE THE EMITTERS BY COMPUTATIONAL FLUID DYNAMICS. IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE[Internet]. 2009;3(1):57-67. Available from: https://sid.ir/paper/131632/en

IEEE: Copy

MAHDI DELGHANDI, S. BOROUMANDNASAB, MAJID BEHZAD, and M. GHALAMBAZ, “STUDY OF HYDRAULIC FLOW INSIDE THE EMITTERS BY COMPUTATIONAL FLUID DYNAMICS,” IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE, vol. 3, no. 1, pp. 57–67, 2009, [Online]. Available: https://sid.ir/paper/131632/en

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