Visualization Experiment and Numerical Analysis of Cavitation Flow Characteristics in Diesel Fuel Injector Control Valve with Different Structure Design

Ma, Haoyuan; Zhang, Tong; An, Qingsong; Tao, Yuhao; Xu, Yue

doi:10.1007/s11630-020-1301-7

Cited by 20 publications

(5 citation statements)

References 17 publications

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“…The convergence model can effectively reduce the cavitation intensity near the sealed area. This research can provide a reference for the engineering optimization design of control valves [3] . Some people also focused on cavitation luminescence, and conducted simulations and experiments on cavitation in the conical throttle.…”

Section: Introductionmentioning

confidence: 95%

“…Reasonable structural design is one of the important ways to reduce the cavitation problem in water hydraulic components [3] . Therefore, for many years, the two-stage throttling structure in which two throttling ports are connected in series at a throttling position is the main structural method to reduce the cavitation phenomenon of water hydraulic control valves.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Research and Analysis on Cavitation of Different Structures of Cone Valve Ports in Pure Water

Xinjian

Liu

et al. 2022

J. Phys.: Conf. Ser.

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In order to study the cavitation problem of the pure water medium hydraulic poppet valve, a three-dimensional model of the poppet control valve under a rated pressure of 31.5MPa was established with the help of Soildworks software, and the poppet valve port model was simplified into a two-dimensional symmetrical model with AutoCAD software. Based on the FLUENT software, the liquid-gas two-phase flow simulation of the cavitation phenomenon in the flow field of the poppet valve is carried out, and the cavitation distribution and intensity change rules of the three valve port structures at three opening degrees are obtained. The results show that for the pure water medium hydraulic cone valve, the cavitation distribution in the new stepped structure is significantly reduced and the strength is significantly reduced under the same opening degree.

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Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Research and Analysis on Cavitation of Different Structures of Cone Valve Ports in Pure Water

Xinjian

Liu

et al. 2022

J. Phys.: Conf. Ser.

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“…The field of research is active and ongoing. Several authors have recently studied cavitation, especially in fuel nozzles [1][2][3][4][5]. Cavitation is characterised by the formation, growth and collapse of gas bubbles within a liquid caused by a low static pressure.…”

Section: Introductionmentioning

confidence: 99%

Implementation of a VoF solver with phase change for the simulation of internal cavitation and droplet breakup in injectors

Dueholm,

Christiansen,

Endelt

et al. 2024

OpenFOAM J

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This study presents the implementation and derivation of a Volume of Fluid (VoF) solver capable of taking into account pressure driven phase change and handle three fluids. The implemented code is designed to investigate internal nozzle cavitation and subsequent injection and jet breakup. An extended cavitation model is also implemented that can handle phase change in the presence of a third phase. Detailed description and derivation of the mathematical system is presented. The solver is validated on a one-dimensional benchmark case from the literature and verified on an experimentally well-documented geometry. The verification shows the developing cavitation regime is well captured by comparing velocity profiles and flow images with experimental measurements and visualisation.

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“…The results showed that the cavitation intensity increases with the increase of valve lift. 16 The large-eddy simulation was used to simulate the ventilation and transient natural cavitation. The simulated results showed good consistency with the experimental results.…”

Section: Introductionmentioning

confidence: 99%

Transient simulation of cavitation evolution process in a diesel engine injector

Qiu

et al. 2022

International Journal of Engine Research

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In this study, a method for simulating the whole transient process of the cavitation evolution in a diesel injector was proposed. Diesel is taken as the fuel. The basic characteristics of partial, local, and super cavitation phenomena inside the injector were reproduced and discussed at different time steps. On the basis of movement features of the injector needle, Firstly, the moving process of the diesel injection such as the upward, suspension, and downward movements were simulated under different injector geometric parameters. The time-dependent movement process of the injector needle were controlled by a user-defined program developed by ourselves. Thereafter, a dynamic grid system and a two-phase flow cavitation numerical model were constructed and adopted to numerically reproduce the two-phase flow and the cavitation inside the injector. It was found that the volume fraction of the gas diesel during the partial cavitation is greater than that during the super-cavitation. The faster the needle valve opens, the earlier super-cavitation forms, but the gas volume fraction of diesel decreases faster in the injection orifice. Increasing the drain orifice diameter is helpful for earlier formation of the super-cavitation.

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Visualization Experiment and Numerical Analysis of Cavitation Flow Characteristics in Diesel Fuel Injector Control Valve with Different Structure Design

Cited by 20 publications

References 17 publications

Research and Analysis on Cavitation of Different Structures of Cone Valve Ports in Pure Water

Research and Analysis on Cavitation of Different Structures of Cone Valve Ports in Pure Water

Implementation of a VoF solver with phase change for the simulation of internal cavitation and droplet breakup in injectors

Transient simulation of cavitation evolution process in a diesel engine injector

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