Shahr Kord University

Shahr-e Kord, Iran

Shahr Kord University

Shahr-e Kord, Iran
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Delghandi M.,Shahid Chamran University | Behzad M.,Shahid Chamran University | Broomandnasab S.,Shahid Chamran University | Saeedinia M.,Shahid Chamran University | Saeedinia M.,Shahr Kord University
Research on Crops | Year: 2011

The uniformity of emitter flow rate depends on many factors such as water temperature. Temperature variations influence water properties, especially viscosity, which may make significant changes in emitter outflow. The laboratory studies and field surveys are expensive and time-consuming. Computational fluid dynamics (CFD) is a helpful tool to study flow behaviour in water channels. Thus, in present study the effect of temperature on the discharge of three samples of a kind of tape emitter were tested under six pressures of 2, 4, 6.1, 9.2, 12.25 and 16.33 mH 2O and each pressure in six temperatures of 5, 15, 20, 25, 35, 45 and 55°C were simulated by CFD. Verification of results showed that results obtained from simulation were in good consistency with laboratory results. Also results indicated that emitter discharges were insensitive to temperature variations and the computational fluid dynamics can be a very appropriate tool to study the hydraulic performance of emitters in less time and at a lower cost.

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