Research on the influence of unsteady cavitation on the dynamics structures of a twisted hydrofoil based on variational mode decomposition method DOI
Mingkun Fang,

Zilong Hu,

Ran Tao

et al.

Ocean Engineering, Journal Year: 2024, Volume and Issue: 312, P. 119117 - 119117

Published: Aug. 30, 2024

Language: Английский

Investigation of singlet oxygen and superoxide radical produced from vortex-based hydrodynamic cavitation: Mechanism and its relation to cavitation intensity DOI
Shuchang Liu, Xi Yuan,

Zhewen Shao

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 929, P. 172761 - 172761

Published: April 24, 2024

Language: Английский

Citations

13
Effect of water injection on tip leakage vortex cavitation for a NACA0009 hydrofoil with medium clearance DOI
Xiang Ji, Wei Wang, Zhijian Li

et al.

Ocean Engineering, Journal Year: 2025, Volume and Issue: 320, P. 120349 - 120349

Published: Jan. 13, 2025

Language: Английский

Citations

1
Research progress of hydrodynamic cavitation reactors in the field of water treatment: A review DOI

Enhong Lei,

Xi Yuan,

Kexin Xiang

et al.

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 66, P. 105997 - 105997

Published: Aug. 17, 2024

Language: Английский

Citations

5
Unveiling the roles of turbulence characteristics on the degradation of methylene blue by the activation of H2O2 through vortex-based hydrodynamic cavitation under neutral condition DOI

Zhewen Shao,

Kexin Xiang,

Shuchang Liu

et al.

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(5), P. 113916 - 113916

Published: Aug. 23, 2024

Language: Английский

Citations

2
Large eddy simulation of micro vortex generator-controlled cavitation across multiple stages DOI

Chengqi Mou,

Bangxiang Che, Yuxuan Wang

et al.

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(10)

Published: Oct. 1, 2024

Micro vortex generators (mVGs) control cavitation by altering the boundary layer flow structure. This study employs wall-adapting local eddy-viscosity large eddy simulation (WALE-LES) turbulence model combined with Zwart–Gerber–Belamri to conduct transient numerical simulations on National Advisory Committee for Aeronautics 0015 baseline hydrofoil and equipped mVGs under various numbers. The proper orthogonal decomposition method experiments verify accuracy consistency of these regarding cavity scale. elucidates mechanisms which suppress cloud at low numbers induce high Results indicate that maintain sheet characteristics numbers, reducing wall pressure fluctuations enhancing stability. During inception, mVG-induced leads early formation. In phase, modal energy distribution is more dispersed, while in inception concentrated significant dominant modes. Moreover, counter-rotating vortices generated mitigate separation, enhance leading-edge attachment stability, reduce high-frequency vibrations caused bubble shedding. significantly advances understanding accurately simulating revealing across different stages using WALE-LES model. findings demonstrate can effectively stabilize structures instabilities overall performance. These insights will have a impact design hydrofoils development strategies.

Language: Английский

Citations

2
Stress-blended eddy simulation and visualization validation of unsteady viscous oil cavitation in hydrodynamic torque converter DOI Creative Commons
Jiahua Zhang,

Qingdong Yan,

Zhifang Ke

et al.

Alexandria Engineering Journal, Journal Year: 2024, Volume and Issue: 114, P. 663 - 680

Published: Dec. 10, 2024

Language: Английский

Citations

1
Study on the characteristics of cavitation and COD removal of an addendum rotational hydrodynamic cavitation reactors DOI Open Access
Faqi Zhou, Zhiwen Luo,

Xianbo Wu

et al.

Asia-Pacific Journal of Chemical Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 3, 2024

Abstract This paper presented an addendum rotational hydrodynamic cavitation reactors (ARHCR) that enabled circumferential shear cavitation, axial and the Venturi effect, thus increasing efficiency. The experiments on hydroxyl (·OH) release chemical oxygen demand (COD) removal demonstrate feasibility of performance characterization COD rate. findings indicate rate can reach a maximum value 28% or 30% with increase in flow rotating speed, respectively. Specifically, values were achieved at rotation speed 2,500 rpm 1.0 m 3 ·h −1 . Based mechanism wedge angles, crucial structural parameters, examined for optimizing performance. results revealed number bubble significantly influenced by as well efficiency energy. mechanical fluid was enhanced resulting constant compression increased kinetic led to stronger effects bulge blocks, formation vortexes rebounded constantly, lower pressure areas expanded regions cavitation. Among angles tested, angle 15° exhibited highest bubbles 46%. 31% higher than grooves‐type cavitator reported. Furthermore, extremely improved 15°, corresponding These explorations provide references industrial agricultural wastewater, development novel wastewater treatment.

Language: Английский

Citations

0
Research on the influence of unsteady cavitation on the dynamics structures of a twisted hydrofoil based on variational mode decomposition method DOI
Mingkun Fang,

Zilong Hu,

Ran Tao

et al.

Ocean Engineering, Journal Year: 2024, Volume and Issue: 312, P. 119117 - 119117

Published: Aug. 30, 2024

Language: Английский

Citations

0