Computational simulation of hydraulic characteristics for laminated sand filter

Liao Xinmian; Dong Wenchu; Pan Lin; Yu Lifeng

Volume 24 Issue 8

Aug. 2008

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Abstract

Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE) > 2008 > 24(8): 1-5.

Liao Xinmian, Dong Wenchu, Pan Lin, Yu Lifeng. Computational simulation of hydraulic characteristics for laminated sand filter[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2008, 24(8): 1-5.

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Computational simulation of hydraulic characteristics for laminated sand filter

1.
College of Engineering and Technology, Huazhong Agricultural University, Wuhan 430070, China
2.
State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China

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Received Date: July 08, 2007
Revised Date: July 29, 2008
Published Date: August 30, 2008

Graphical Abstract

Abstract

Abstract

Aiming at the problem of emitter jamming in micro-irrigation engineering, the optimal number of laminated sand filter was discussed with stated filter diameter, through abundant hydraulic characteristics tests and back flushing tests. Equations of hydraulic characteristics in sand filter lamination and formulas of filtrated head-loss are put forward in the study. The results of experiments show that the suggested formulas of filtrated head-loss are more precise than the former empirical formulas: the relative error is 3.18% with specified velocity. This study offers references for research and development of new types of sand filter.
- micro-irrigation,
- sand filter,
- lamination,
- hydraulic characteristics

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