Numerical and theoretical investigations of the cavitation performance and instability for the cryogenic inducer

Fan, Yading; Chen, Tairan; Liang, Wendong; Wang, Guoyu; Huang, Biao

doi:10.1016/j.renene.2021.11.076

Cited by 18 publications

(2 citation statements)

References 28 publications

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“…They revealed that the tip leakage vortex cavitation regions on the blades are unevenly distributed both in space and time. Fan et al [10] and Chen et al [11] corroborated this observation through numerical simulations. Xiang et al [12] developed a visualization test facility to study super-synchronous rotating cavitation and cavitation surge with varying tip clearance in the inducer.…”

Section: Introductionmentioning

confidence: 69%

Investigation of cavitation evolvement in a pump inducer by proper orthogonal decomposition analysis of video images

Cao,

Yuan,

Kong

et al. 2023

Meas. Sci. Technol.

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The aim of this study is to develop a contour extraction method for the investigation of the temporal and spatial characteristics of cavitation evolution in high-speed inducers. Cavitation experiments were conducted, and corresponding snapshots were captured using a high-speed camera subsequently. The raw images were processed while using threshold value filtering techniques to extract only relevant bubble information. Proper orthogonal decomposition was employed to explore the evolving characteristics in a quantitative manner. Results show that the cavitation evolution process is an unsteady process when viewed from the side. In high net positive suction head (NPSH) environments, multiple small-scale spatial modals contribute significantly to the effective proportion of the cavitation structure. The attached sheet cavitation exists in the blade edge which is the main embodiment of cavitation area evolvement. Under low NPSH conditions, the primary flow feature can be reflected by a low-mode flow pattern, associated with the inducer’s rotation effect. The evolving regulation of cavitation area in developed stage is closely submitted to the trigonometric function. And the exhibited spatial coefficient exposes the hidden reflux vortex feature. The proposed image separation techniques enable the quantification of morphological features, which can provide technical details for the digital design of inducers.

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Section: Introductionmentioning

confidence: 69%

Investigation of cavitation evolvement in a pump inducer by proper orthogonal decomposition analysis of video images

Cao,

Yuan,

Kong

et al. 2023

Meas. Sci. Technol.

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“…For example, Guo et al [105] found that the LAES system RTE only increases by 1% with an increase of 4% in cryogenic pump efficiency; whereas Liang et al [26] showed that there is only 1.4% of RTE increase when the pump efficiency is increased from 70% to 85%. An important area of research related to cryo-pumps, which is worth to note, is the cavitation behaviour during pumping liquid nitrogen [106], liquid oxygen [107], and LNG [108], which could lead to practical operation problems.…”

Section: Cryogenic Pumpsmentioning

confidence: 99%

Liquid air energy storage technology: a comprehensive review of research, development and deployment

Liang

Zhang²,

Lin³

et al. 2023

Prog. Energy

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Liquid air energy storage (LAES) uses air as both the storage medium and working fluid, it falls into the broad category of thermo-mechanical energy storage technologies. Such a technology offers several advantages including high energy density and scalability, cost-competitiveness and non-geographical constraints, and hence has attracted a growing interest in recent years. As a result, several reviews have been published on the topic. However, these reviews covered little in the following aspects of LAES: dynamic simulation and optimisation, key components for LAES, LAES applications through integration, and unified economic model and cost models for LAES. This article provides a comprehensive review on the LAES technology and fills the above gaps. Apart from applications in electrical grids such as peak-shaving, load shifting, and dealing with intermittency of renewable generation, the review also shows a diverse range of other LAES applications through integration, including waste heat and cold energy recovery and utilisation, multi-energy-vector service provision, and sector coupling for chemical production and carbon capture. The review also led to the recommendation of several areas of LAES for future research and development, including dynamic characteristics of whole LAES system integrated with renewables and end users; thermo-economic and dynamic optimization of stand-alone LAES and integrated systems; and experimental study on commercial systems.

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Cavitation research with computational fluid dynamics: From Euler-Euler to Euler-Lagrange approach

Ji,

Wang,

Cheng

et al. 2024

J Hydrodyn

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Numerical and theoretical investigations of the cavitation performance and instability for the cryogenic inducer

Cited by 18 publications

References 28 publications

Investigation of cavitation evolvement in a pump inducer by proper orthogonal decomposition analysis of video images

Investigation of cavitation evolvement in a pump inducer by proper orthogonal decomposition analysis of video images

Liquid air energy storage technology: a comprehensive review of research, development and deployment

Cavitation research with computational fluid dynamics: From Euler-Euler to Euler-Lagrange approach

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