Pool boiling simulation using an interface tracking method: From nucleate boiling to film boiling regime through critical heat flux

Sato, Yohei; Ničeno, Bojan

doi:10.1016/j.ijheatmasstransfer.2018.04.131

Cited by 81 publications

(23 citation statements)

References 40 publications

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“…The model was applied to simulate boiling regimes in which vapour bubbles are either discrete or coalesce to create vapour mushrooms. In their latest journal publication Sato and Niceno [56] used this model to perform a series of pool boiling simulations which span the range from nucleate to film boiling regime and include CHF occurrence.…”

Section: Micro-/meso-scale Simulations Of Boiling Based On Interface mentioning

confidence: 99%

“…-Finally, turbulence effects are ignored in almost all reported models. In fact, only in the recent publications of Sato and Niceno [55,56] turbulence is taken into account by use of large eddy simulation approach with Smagorinsky subgrid-scale model. As this model is originally developed for single-phase flows, it is questionable whether it is valid for the considered case of pool boiling.…”

Section: Micro-/meso-scale Simulations Of Boiling Based On Interface mentioning

confidence: 99%

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Boiling heat transfer modelling: A review and future prospectus

Ilić¹,

Petrović

Stevanović

2019

Therm sci

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This paper reviews the current status of boiling heat transfer modelling, discusses the need for its improvement due to unresolved intriguing experimental findings and emergence of novel technical applications and outlines the directions for an advanced modelling approach. The state-of-the-art of computational boiling heat transfer studies is given for: macro-scale boiling models applied in two-fluid liquid-vapour interpenetrating media approach, micro-, meso-scale boiling computations by interface capturing methods, and nano-scale boiling simulations by molecular dynamics tools. Advantages, limitations and shortcomings of each approach, which originate from its grounding formulations, are discussed and illustrated on results obtained by the boiling model developed in our research group. Based on these issues, we stress the importance of adaptation of a multi-scale approach for development of an advanced boiling predictive methodology. A general road-map is outlined for achieving this challenging goal, which should include: improvement of existing methods for computation of boiling on different scales and development of conceptually new algorithms for linking of individual scale methods. As dramatically different time steps of integration for different boiling scales hinder the application of full multi-scale methodology on boiling problems of practical significance, we emphasise the importance of development of another algorithm for the determination of sub-domains within a macro-scale boiling region, which are relevant for conductance of small-scale simulations.

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Section: Micro-/meso-scale Simulations Of Boiling Based On Interface mentioning

confidence: 99%

Section: Micro-/meso-scale Simulations Of Boiling Based On Interface mentioning

confidence: 99%

Boiling heat transfer modelling: A review and future prospectus

Ilić¹,

Petrović

Stevanović

2019

Therm sci

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“…Shown in Figure 12, this is the only example reported to date of mechanistic modelling of the collective behaviour of steam bubbles as the CHF limit is approached, and the method holds great promise for application to more challenging flow configurations typical of reactor operations. this end, Sato and Niceno [56,75] developed a simulation tool for modelling the collective behaviour of a population of steam bubbles seeded at pre-set nucleation sites on a heated substrate, and used it to predict the occurrence of CHF via vapour blanketing of the surface in pool boiling laboratory conditions. Shown in Figure 12, this is the only example reported to date of mechanistic modelling of the collective behaviour of steam bubbles as the CHF limit is approached, and the method holds great promise for application to more challenging flow configurations typical of reactor operations.…”

Section: Towards Chf Prediction: Modelling the Collective Behaviour Omentioning

confidence: 99%

Modelling of Boiling Flows for Nuclear Thermal Hydraulics Applications—A Brief Review

Giustini

2020

Inventions

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The boiling process is utterly fundamental to the design and safety of water-cooled fission reactors. Both boiling water reactors and pressurised water reactors use boiling under high-pressure subcooled liquid flow conditions to achieve high surface heat fluxes required for their operation. Liquid water is an excellent coolant, which is why water-cooled reactors can have such small sizes and high-power densities, yet also have relatively low component temperatures. Steam is in contrast a very poor coolant. A good understanding of how liquid water coolant turns into steam is correspondingly vital. This need is particularly pressing because heat transfer by water when it is only partially steam (‘nucleate boiling’ regime) is particularly effective, providing a great incentive to operate a plant in this regime. Computational modelling of boiling, using computational fluid dynamics (CFD) simulation at the ‘component scale’ typical of nuclear subchannel analysis and at the scale of the single bubbles, is a core activity of current nuclear thermal hydraulics research. This paper gives an overview of recent literature on computational modelling of boiling. The knowledge and capabilities embodied in the surveyed literature entail theoretical, experimental and modelling work, and enabled the scientific community to improve its current understanding of the fundamental heat transfer phenomena in boiling fluids and to develop more accurate tools for the prediction of two-phase cooling in nuclear systems. Data and insights gathered on the fundamental heat transfer processes associated with the behaviour of single bubbles enabled us to develop and apply more capable modelling tools for engineering simulation and to obtain reliable estimates of the heat transfer rates associated with the growth and departure of steam bubbles from heated surfaces. While results so far are promising, much work is still needed in terms of development of fundamental understanding of the physical processes and application of improved modelling capabilities to industrially relevant flows.

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“…The model was validated with experimental data of Duan et al [39] and Yabuki and Nakabeppu [40] and showed a good prediction of the bubble growth rate and the temperature field at the interface. By use of the developed models, Sato and Niceno [41] conducted a series of pool boiling simulations covering the range of the nucleate boiling to the film boiling regarding critical heat flux (CHF). Figure 3 shows the simulation results for two heat flux values.…”

Section: Boiling Heat Transfer Models In Cfdmentioning

confidence: 99%

Modelling of Passive Heat Removal Systems: A Review with Reference to the Framatome BWR Reactor KERENA: Part II

et al. 2019

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Passive safety systems are an important feature of currently designed and constructed nuclear power plants. They operate independent of external power supply and manual interventions and are solely driven by thermal gradients and gravitational force. This brings up new needs for performance and reliably assessment. This paper provides a review on fundamental approaches to model and analyze the performance of passive heat removal systems exemplified for the passive heat removal chain of the KERENA boiling water reactor concept developed by Framatome. We discuss modeling concepts for one-dimensional system codes such as ATHLET, RELAP and TRACE and furthermore for computational fluid dynamics codes. Part I dealt with numerical and experimental methods for modeling of condensation inside the emergency condenser and on the containment cooling condenser. This second part deals with boiling and two-phase flow instabilities.

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Pool boiling simulation using an interface tracking method: From nucleate boiling to film boiling regime through critical heat flux

Cited by 81 publications

References 40 publications

Boiling heat transfer modelling: A review and future prospectus

Boiling heat transfer modelling: A review and future prospectus

Modelling of Boiling Flows for Nuclear Thermal Hydraulics Applications—A Brief Review

Modelling of Passive Heat Removal Systems: A Review with Reference to the Framatome BWR Reactor KERENA: Part II

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