Efficient implementation of THINC scheme: A simple and practical smoothed VOF algorithm

Yokoi, Kensuke

doi:10.1016/j.jcp.2007.06.020

Cited by 196 publications

(114 citation statements)

References 51 publications

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“…Interfacial behavior is captured by an advanced and robust surface capturing method, THINC (Xiao et al, 2005) or THINC/WLIC (Yokoi, 2007). These methods can capture interfaces with low numerical diffusion and cost.…”

Section: Analysis Models Of the Jupitermentioning

confidence: 99%

Development of numerical simulation method for melt relocation behavior in nuclear reactors: validation and applicability for actual core structures

Yamashita

Tokushima

Kurata

et al. 2017

Mechanical Engineering Journal

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In order to precisely investigate molten core relocation behavior in severe accidents, we have been developing the detailed and phenomenological numerical simulation code named JUPITER for predicting the molten core behavior with melting and solidification based on computational fluid dynamics (CFD) including the threedimensional multiphase thermal-hydraulic simulation models. In order to treat complicated core structures, e.g., boron carbide (absorber), stainless steel (control rod, fuel support structure, etc.), Zircaloy (channel box and fuel cladding) and to deal with complicated melt relocation behaviors, high accuracy, efficient, stable and robust numerical schemes are implemented. In this paper, in order to evaluate the validity and applicability of the JUPITER for actual core structures, we perform the preliminary melt relocation analysis in the control rod and fuel support piece and also verify the validity of the JUPITER regarding the melt relocation and solidification processes by the fundamental numerical problem and the experimental analysis. As a result, the preliminary analysis showed that multicomponent melt flow and its melt and solidification were stably worked in the melt relocation simulation. In the validation analysis, the numerical results were in the reasonably agreement with experimental results. Therefore, it was confirmed that the JUPITER has a potential to calculate the core melt relocation behavior in RPVs.

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Section: Analysis Models Of the Jupitermentioning

confidence: 99%

Development of numerical simulation method for melt relocation behavior in nuclear reactors: validation and applicability for actual core structures

Yamashita

Tokushima

Kurata

et al. 2017

Mechanical Engineering Journal

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“…Of those methods, the tangent of hyperbola for interface capturing (THINC; Xiao et al [23]) scheme with the weighed line interface calculation (WLIC; Yokoi [24]) method is used in the present computation. After calculating the volumefraction function for the solid phase, which will be explained in the next section, the volume-fraction function of the air phase can be obtained from a simple constraint, i.e., the sum of the volume-fraction functions is equal to one in each grid.…”

Section: Flow Solvermentioning

confidence: 99%

“…In the present numerical method, a first-order fractional step method was applied for velocity-pressure coupling, and the tangent of hyperbola for interface capturing (THINC) scheme [23] was used along with a weighted line interface calculation (WLIC) method [24] as a fluid interface capturing method. A solid body was embedded in a Cartesian grid, and a signed distance function was calculated in each computational grid to determine the volume fraction of the body inside a grid.…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of added resistance on blunt ships with different bow shapes in short waves

Yang

Kim

2016

J Mar Sci Technol

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In this paper, a Cartesian-grid method is applied to investigate the added resistance of KRISO's very large crude oil carrier hull with a different bow, particularly in short incident waves. The wavelength is fixed as half of the ship length in all computations. In the present numerical method, a first-order fractional-step method is applied to the velocity-pressure coupling in the fluid domain, and the volume-of-fluid method is adopted to capture the fluid interface. The ship is embedded in a Cartesian grid, and the volume fraction of the ship inside the grid is calculated to identify the different phases in each grid. The sensitivity of the time window during post-processing as well as the number of solution grids is investigated. The computed added resistance is compared with experimental data. In addition, the characteristics of the surge force for different wave amplitudes are observed by comparing the wave elevation around the bow. Further, to compare the relative magnitude of higher harmonic components with respect to the magnitude of the first harmonic component, harmonic analyses of the time history of the surge force are performed. Based on the present numerical results, the effects of the wave amplitude and bow shape on added resistance for a short wavelength are observed. Finally, the distribution characteristics of time-averaged added pressure on the ship surface are investigated for each bow shape and wave amplitude.

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“…Average based Multi Moment Method) numerical model 7,8) and the accurate surface capturing scheme, THINC/WLIC scheme 9,10) .…”

Section: Introductionmentioning

confidence: 99%

Development of laser welding simulation code with advanced numerical models

Yamashita

Yonemoto

Yamada

et al. 2011

QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY

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Toward a standardization of laser welding repair processes and controlling a residual stress which is induced by laser welding, we constructed the fully parallelized laser welding simulation model using one-fluid model (in the simulation, solid, liquid and gas phase are simultaneously calculated by one set of governing equations) and some advanced numerical models. In the simulation, the base material is a pure aluminum which was included to the code as a physical parameter and we considered the surface tension force and its effect of a temperature gradient named Marangoni stress. As a result, reasonable results were obtained that is welding bead which is one of the representative behavior of a low power density laser welding and the appropriate shape of inside the molten pool. Therefore, the model can be applied to be practical laser welding problems.

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Efficient implementation of THINC scheme: A simple and practical smoothed VOF algorithm

Cited by 196 publications

References 51 publications

Development of numerical simulation method for melt relocation behavior in nuclear reactors: validation and applicability for actual core structures

Development of numerical simulation method for melt relocation behavior in nuclear reactors: validation and applicability for actual core structures

Numerical analysis of added resistance on blunt ships with different bow shapes in short waves

Development of laser welding simulation code with advanced numerical models

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