Current achievements on bubble dynamics analysis using MPS method

Chen, Ronghua; Dong, Chunhui; Guo, Kailun; Tian, Wenxi; Qiu, Suizheng; Su, G.H.

doi:10.1016/j.pnucene.2019.103057

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扰动和处理复杂界面运动的能力，显著提高数值稳定性。建立了粒子法大规模高效并行计算方法，开发了1

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2024

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Cited by 28 publications

(1 citation statement)

References 80 publications

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“…图 3 PANDA-BD 在两相流中的应用模拟. (a) 竖直壁面汽泡成核生长及滑移脱离过程模拟 [10] ; (b) 汽泡冷凝溃灭过程模拟 [11] ；(c) 大密度比汽泡上升过程模拟 [6] ; (d) 汽泡融合过程模拟 [13] ; (e) 弹状汽泡上升过程模拟 [12] ; (f) 气泡在水油两相流中的上升分离过程模拟 [7] ; (g) 封闭气液空间中的气泡流动行为模拟…”

Section: 扰动和处理复杂界面运动的能力，显著提高数值稳定性。建立了粒子法大规模高效并行计算方法，开发了unclassified

Simulation of the key phenomena in nuclear reactor two-phase flow and severe accident with particle method

CHEN,

TIAN,

GUO

et al. 2024

Sci. Sin.-Tech.

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Section: 扰动和处理复杂界面运动的能力，显著提高数值稳定性。建立了粒子法大规模高效并行计算方法，开发了unclassified

Simulation of the key phenomena in nuclear reactor two-phase flow and severe accident with particle method

CHEN,

TIAN,

GUO

et al. 2024

Sci. Sin.-Tech.

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Modeling of Dual‐Factor Drag Correction Model for Bubbly Flow under Elevated Pressure

Gao,

Geng,

Verdin

et al. 2024

Chem Eng & Technol

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A pressure correction method is proposed considering the influence of a dual factor. The applicability of a pressure correction method coupled with a drag model is discussed along with the accuracy of the simulation results obtained by such a pressure correction method. It is found that the present pressure correction method combined with the DBS (dual bubble size) drag model can accurately reflect the changing trend of gas holdup distribution with pressure. It is also established that results from this model applied to a bubble column match well with the experimental data. Finally, when compared with other pressure correction models, the proposed model shows better robustness in three‐dimensional simulations and can predict radial gas holdup distributions with better accuracy.

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A volume-conservation particle shifting scheme for moving particle method simulating free-surface flow

Liu,

Wang,

Duan

et al. 2024

Comp. Part. Mech.

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In this study, a novel particle shifting scheme for the moving particle method simulating free surface flow is developed. The overall method is based on the framework of least square moving particle semi-implicit (LSMPS) method, enabling accurate and stable treatment of wall boundary without configuration of dummy or virtual wall particles. To avoid volume expansion, a volume-conservation particle shifting (VCPS) model is developed. An additional term considering the variation of particle numerical density is incorporated into the VCPS model to avoid volume expansion. Several numerical simulations are calculated to validate the effectiveness of the VCPS. It is demonstrated that LSMPS incorporating with VCPS shows satisfactory accuracy and superior capability to conserve volume.

show abstract

Current achievements on bubble dynamics analysis using MPS method

Cited by 28 publications

References 80 publications

Simulation of the key phenomena in nuclear reactor two-phase flow and severe accident with particle method

Simulation of the key phenomena in nuclear reactor two-phase flow and severe accident with particle method

Modeling of Dual‐Factor Drag Correction Model for Bubbly Flow under Elevated Pressure

A volume-conservation particle shifting scheme for moving particle method simulating free-surface flow

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