Open Access

ARTICLE

Simulation of the Hydraulic Behavior of a Bionic-Structure Drip Irrigation Emitter

Tianyu Xu¹, Yanru Su¹, Zhouming Su¹, Shuteng Zhi¹, Ennan Zheng^1,*, Chengcheng Yan²

1 School of Hydraulic and Electric Power, Heilongjiang University, Harbin, 150080, China
2 School of Traditional Chinese Medicine, Zhejiang Pharmaceutical College, Ningbo, 315503, China

* Corresponding Author: Ennan Zheng. Email:

Fluid Dynamics & Materials Processing 2022, 18(4), 1169-1182. https://doi.org/10.32604/fdmp.2022.018628

Received 06 August 2021; Accepted 15 October 2021; Issue published 06 April 2022

Abstract

The bionic structure drip irrigation emitter (BSDE) is a new-type emitter, by which better hydraulic performances can be obtained. In the present work, twenty-five sets of orthogonal test schemes were implemented to analyze the influence of the geometric parameters of the flow channel on the hydraulic characteristics and energy dissipation efficiency of this emitter. Through numerical simulations and verification tests, the flow index and energy dissipation coefficient were obtained. According to the results, the flow index of the BSDE is 0.4757–0.5067. The energy dissipation coefficient under the pressure head of 5–15 m is 584–1701. The verification test has shown that the relative errors among measured values, simulated values and estimated values are less than 3%, which indicates that the flow index can be estimated reliably.

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Keywords

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