Numerical investigation on bubble dynamics during flow boiling using moving particle semi-implicit method

Chen, Ronghua; Tian, Wenxi; Su, G.H.; Qiu, Suizheng; Ishiwatari, Yuki; Oka, Yoshiaki

doi:10.1016/j.nucengdes.2010.08.008

Cited by 56 publications

(11 citation statements)

References 24 publications

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“…However, a few of the relative works on the MPS method have been studied (Yoon et al 1999;Shibata et al 2012;Tanaka et al 2009). The variable kernel size technique (Yoon et al 1999) was mainly employed to investigate the 2D bubble dynamics by Heo et al (2002), Tian et al (2009) and Chen et al (2010). In addition, the overlapping particle (Shibata et al 2012) and multi-resolution techniques (Tanaka et al 2009) were proposed for 2D free-surface flows and the relative 3D applications are rarely reported.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of 3D violent free-surface flows by multi-resolution MPS method

Tang

Wan

Chen

et al. 2016

J. Ocean Eng. Mar. Energy

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3D violent free-surface flows are modelled by multi-resolution moving particle semi-implicit (MPS) method. Firstly, a 2D dam-break flow with an obstacle is performed. This shows that multi-resolution MPS can provide the integrated and clear shape of free surface as that by universally fine (Uni-Fine) with high-resolution particles in the entire domain. Then the multi-resolution MPS method is employed to carry out 3D violent free-surface flows, including dambreak and water entry. In the dam-break case, a relative rational pressure field can be provided and the predicted impact pressures are also compared with experimental data. In the 3D water entry case, the present method can capture complex phenomena including largely free-surface deformations and splashing. The penetration depth of the cylinder is also close to experimental data.

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Section: Introductionmentioning

confidence: 99%

Numerical simulation of 3D violent free-surface flows by multi-resolution MPS method

Tang

Wan

Chen

et al. 2016

J. Ocean Eng. Mar. Energy

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“…Condensation of a pure single steam bubble [9][10][11][12][13][14][15][16] and a mixture bubble [17,18] have been studied extensively. Several researchers computationally investigated the bubble nucleation, growth, departure, film-and flow boiling, and condensation [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Bubble Behavior under Gradient Flows during Subcooled Flow Boiling in Vertical Flow Channel

2020

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In this study, we examined the condensing behavior of single and multiple bubbles of pure steam in a subcooled liquid phase using a fully compressible two-phase homogeneous mixture method that is solved by an implicit dual-time preconditioned technique. The interface between the liquid and vapor phases was determined by the advection equations using a compressive high-resolution interfacing capturing method. The spurious current reduced near the interface, a smoothing filter is applied to the progress curvature calculation. The sensitivity study carried out to predict the empirical constant by using Lee’s mass transfer model. A comparison of the numerical and experimental results highlighted that the proposed model accurately predicted the behavior of the definite condensing bubble. Furthermore, the single and multiple bubble condensation behaviors were investigated for different initial subcooled temperatures, and bubble diameters under various gradient flow, such as velocity gradient, temperature gradient, and velocity and temperature gradients. Subsequently, the effect of multiple bubbles flows in different bubble pattern forms, and their condensation was studied. The coalescence of bubbles depends on the subcooled temperature. Furthermore, the bubble diameter, the gap between the bubbles, and the flow rate of the bubbles were also observed.

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“…In order to solve the problem of particle tracking in the presence of inlet and outlet flows in fluid mechanics, Yoon et al [20] came up with a hybrid method called MPS-MAFL. At this stage, twophase simulation based on the MPS-MAFL method has been widely used [21][22][23][24][25] because of its outstanding advantages in capturing phase interface.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Bubble Rising and Coalescence Characteristics under Flow Pulsation Based on Particle Method

Chen

Zhang

Guo

et al. 2019

Science and Technology of Nuclear Installations

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Two-phase flow instability may occur in nuclear reactor systems, which is often accompanied by periodic fluctuation in fluid flow rate. In this study, bubble rising and coalescence characteristics under inlet flow pulsation condition are analyzed based on the MPS-MAFL method. To begin with, the single bubble rising behavior under flow pulsation condition was simulated. The simulation results show that the bubble shape and rising velocity fluctuate periodically as same as the inlet flow rate. Additionally, the bubble pairs’ coalescence behavior under flow pulsation condition was simulated and compared with static condition results. It is found that the coalescence time of bubble pairs slightly increased under the pulsation condition, and then the bubbles will continue to pulsate with almost the same period as the inlet flow rate after coalescence. In view of these facts, this study could offer theory support and method basis to a better understanding of the two-phase flow configuration under flow pulsation condition.

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Numerical investigation on bubble dynamics during flow boiling using moving particle semi-implicit method

Cited by 56 publications

References 24 publications

Numerical simulation of 3D violent free-surface flows by multi-resolution MPS method

Numerical simulation of 3D violent free-surface flows by multi-resolution MPS method

Numerical Study of Bubble Behavior under Gradient Flows during Subcooled Flow Boiling in Vertical Flow Channel

Numerical Study of Bubble Rising and Coalescence Characteristics under Flow Pulsation Based on Particle Method

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