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Structural optimization of labyrinth-channel emitters based on hydraulic and anti-clogging performances

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Abstract

To balance the hydraulic and anti-clogging performances for labyrinth-channel emitters, a multi-objective optimization was performed to improve the structure of trapezoidal labyrinth channels. Two variables, pressure loss coefficient (PLC) and passage rate of particles (PRP), were proposed to evaluate the hydraulic and anti-clogging performances, respectively. The Pareto fronts of PLC and PRP were calculated using the elitist non-dominated sorting genetic algorithm version II (NSGA-II). The results show that the optimal fronts are obtained through 100 generations evolution. The associated key parameters D/W and H/D are constant, while S/H and α are different for each front. In addition, the approach to obtain a trade-off solution from these fronts was developed by arranging different weights for the two variables. This approach is very suitable for structural optimization of labyrinth channels with the same shape but different dimensions.

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Acknowledgments

This work is financially supported by the Fundamental Research Funds for the Central Universities and the Program for Changjiang Scholars and Innovative Research Team in University (No. IRT0646).

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Authors and Affiliations

  1. State Key Laboratory for Manufacturing System Engineering, Xi’an Jiaotong University, Xi’an, People’s Republic of China

    Jun Zhang, Wanhua Zhao, Yiping Tang & Bingheng Lu

  2. Institute of Advanced Manufacturing Technology, School of Mechanical Engineering, Xi’an Jiaotong University, No. 28 Xianning West Road, 710049, Xi’an, People’s Republic of China

    Jun Zhang, Wanhua Zhao, Yiping Tang & Bingheng Lu

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  1. Jun Zhang
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  2. Wanhua Zhao
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  3. Yiping Tang
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  4. Bingheng Lu
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Correspondence to Jun Zhang.

Additional information

Communicated by T. Trooien.

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Zhang, J., Zhao, W., Tang, Y. et al. Structural optimization of labyrinth-channel emitters based on hydraulic and anti-clogging performances. Irrig Sci 29, 351–357 (2011). https://doi.org/10.1007/s00271-010-0242-4

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  • DOI: https://doi.org/10.1007/s00271-010-0242-4

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