| contributor author | Wei Qingsong | |
| contributor author | Lu Gang | |
| contributor author | Wang Li | |
| contributor author | Zheng Jincan | |
| contributor author | Liu Jie | |
| contributor author | Shi Yusheng | |
| date accessioned | 2017-05-08T21:52:41Z | |
| date available | 2017-05-08T21:52:41Z | |
| date copyright | April 2010 | |
| date issued | 2010 | |
| identifier other | %28asce%29ir%2E1943-4774%2E0000209.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/65068 | |
| description abstract | The flow exponent greatly determines the hydraulic performance of drip emitters. The objective of this study is to reveal the change of flow exponents with different water pressures. Laboratorial experiments of the relationship between discharges and water pressures were conducted with five types of drip emitters used for surface drip irrigation systems. The regression for calculating flow exponents was done with different segment pressures. The results showed that the flow exponent reduced gradually with the increase of the pressure segment except a brief increase in the early stage of pressure increasing due to the channel expansion. The eddy drip-arrow is most suitable for the pressure ranges of 2–8 and | |
| publisher | American Society of Civil Engineers | |
| title | Experimental Study on the Multisegment Regime of the Water Flow in Drip Emitters | |
| type | Journal Paper | |
| journal volume | 136 | |
| journal issue | 4 | |
| journal title | Journal of Irrigation and Drainage Engineering | |
| identifier doi | 10.1061/(ASCE)IR.1943-4774.0000181 | |
| tree | Journal of Irrigation and Drainage Engineering:;2010:;Volume ( 136 ):;issue: 004 | |
| contenttype | Fulltext | |