Submit

Login Login

Register Register

Home / Journals / FDMP / Online First / doi:10.32604/fdmp.2025.073281
Journal Menu
Special Issues
Table of Content

All issues

Online First

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

Open Access

ARTICLE

Jet Pump Structural Optimization through CFD Analysis and Experimental Validation

Zhengqiang Peng1,*, Rendong Feng1, Fang Han1, Jing Guo1, Shen Chi1, Wenao Huang1, Jie Luo2
1 China Oilfield Services Limited, Tianjin, 300459, China
2 State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, China
* Corresponding Author: Zhengqiang Peng. Email: email
(This article belongs to the Special Issue: Model-Based Approaches in Fluid Mechanics: From Theory to industrial Applications)

Fluid Dynamics & Materials Processing https://doi.org/10.32604/fdmp.2025.073281

Received 15 September 2025; Accepted 26 November 2025; Published online 05 December 2025

Abstract

Jet pumps often suffer from efficiency losses due to the intense mixing of power and suction fluids, which leads to significant kinetic energy dissipation. Enhancing the efficiency of such pumps requires careful optimization of their structural parameters. In this study, a computational fluid dynamics (CFD) model of a hydraulic jet sand-flushing pump is developed to investigate the effects of throat-to-nozzle distance, area ratio, and throat length on the pump’s sand-carrying performance. An orthogonal experimental design is employed to optimize the structural parameters, while the influence of sand characteristics on pumping performance is systematically evaluated. Complementary indoor experiments are used to validate the numerical results, yielding an optimized configuration with a throat-to-nozzle cross-sectional area ratio of 4, a throat length five times the throat diameter, and a throat-to-nozzle distance equal to the nozzle diameter. Under a power fluid flow rate of 1.7 m3/h with this area ratio, the sand-carrying efficiency reaches its peak, achieving a sand transport rate of 290 g/min (6.7 L/h). Comparison of CFD predictions with experimental data across different area ratios demonstrates excellent agreement, with an average relative error of 2.44% and an average absolute error of 3.56%, confirming the reliability of the simulation approach.

Keywords

Jet pump; sand-carrying; CFD; nozzle; throat

  • 9

    View

  • 2

    Download

  • 0

    Like

Related articles
Copyright© 2025 Tech Science Press
© 1997-2025 TSP (Henderson, USA) unless otherwise stated

Share Link