Large Eddy Simulation of Cavitation Jets from an Organ-Pipe Nozzle: The Influence of Cavitation on the Vortex Coherent Structure

Zhenlong Fang; Wenjiang Hou; Zhifan Xu; Xiaofeng Guo; Zenglei Zhang; Ruichao Shi; Yunan Yao; Yong Chen

LAPSE

Living Archive for Process Systems Engineering

LAPSE:2024.0005

Published Article

LAPSE:2024.0005

Large Eddy Simulation of Cavitation Jets from an Organ-Pipe Nozzle: The Influence of Cavitation on the Vortex Coherent Structure

Zhenlong Fang, Wenjiang Hou, Zhifan Xu, Xiaofeng Guo, Zenglei Zhang, Ruichao Shi, Yunan Yao, Yong Chen

January 5, 2024

High-speed water jets are widely used in deep mining and the in-depth study of jet characteristics helps to improve drilling efficiency. Three-dimensional Large Eddy Simulation is used to simulate turbulent flows generated by an organ-pipe nozzle. The simulation is validated with existing experimental data and is focused on the evolution and interaction of cavitation bubbles and vortices. Dynamic mode decomposition is performed to extract structural information about the different motion modes and their stability. Results show that the dominant fluid frequency is positively correlated with inlet pressure while unrelated to the divergence angle. Meanwhile, jets’ oscillation is amplified by a large divergence angle, which facilitates the occurrence of cavitation. Results about the flow field outside of an organ-pipe nozzle advance the understanding of the basic mechanism of cavitation jets.

Record ID

LAPSE:2024.0005

Keywords

cavitation, divergence angle, dynamic mode decomposition, jet, Large Eddy Simulation

Subject

Modelling and Simulations

Suggested Citation

Fang Z, Hou W, Xu Z, Guo X, Zhang Z, Shi R, Yao Y, Chen Y. Large Eddy Simulation of Cavitation Jets from an Organ-Pipe Nozzle: The Influence of Cavitation on the Vortex Coherent Structure. (2024). LAPSE:2024.0005

Author Affiliations

Fang Z: State Key Laboratory of Maritime Technology and Safety, Wuhan University of Technology, Wuhan 430063, China; School of Transportation and Logistics Engineering, Wuhan University of Technology, Wuhan 430063, China; Sanya Science and Education Innovation Pa [ORCID]
Hou W: State Key Laboratory of Maritime Technology and Safety, Wuhan University of Technology, Wuhan 430063, China; School of Transportation and Logistics Engineering, Wuhan University of Technology, Wuhan 430063, China; Sanya Science and Education Innovation Pa
Xu Z: School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, China
Guo X: LIED, UMR 8236, CNRS, Université Paris Cité, F-75006 Paris, France [ORCID]
Zhang Z: Wuhan Second Ship Design and Research Institute, Wuhan 430205, China
Shi R: Wuhan Second Ship Design and Research Institute, Wuhan 430205, China
Yao Y: Sanya Science and Education Innovation Park, Wuhan University of Technology, Sanya 572025, China; School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, China
Chen Y: State Key Laboratory of Maritime Technology and Safety, Wuhan University of Technology, Wuhan 430063, China; School of Transportation and Logistics Engineering, Wuhan University of Technology, Wuhan 430063, China

Journal Name

Processes

Volume

11

Issue

8

First Page

2460

Year

2023

Publication Date

2023-08-16