Dynamic Behavior of Cavity Formed by a Top-blown Jet on Liquid Surface: Water Model Experiment

Ueno, Kazuyuki; Takatani, Kouji; Ishii, Toshio; Shimasaki, Shin Ichi; Nakamura, Osamu; Komagata, Daisuke; Ando, Makoto; Asahara, Norifumi; Kageyama, Masato

doi:10.2355/tetsutohagane.101.74

Cited by 5 publications

(7 citation statements)

References 12 publications

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“…The flows are gas‐liquid two‐phase flows where compressible and incompressible flows coexist and have all the flow features of the validations. The calculation results agreed well with experimental ones of Ueno et al in the shape of the cavity formed on the water surface.…”

Section: Discussionsupporting

confidence: 89%

“…The experiment by Ueno et al 11 was calculated using the region-splitting approach by Nakamura et al 37 Nakamura's results were consistent with the experimental ones of Ueno et al However, there is a problem in the approach of giving the boundary condition on the inlet boundary in the lower region. The ideal method of giving the boundary condition is by updating the values using the calculation results of the upper region for small time steps.…”

Section: Subsonic Jet Impinging On a Water Poolsupporting

confidence: 59%

“…The flows are gas‐liquid two‐phase flows where compressible and incompressible flows coexist and have all the flow features of the validations. The results were compared with the experimental results by Ueno et al The calculated problems are listed as follows. Flows over a circular arc bump, which are subsonic single‐phase flows. Backward‐facing step flows, which are incompressible single‐phase turbulent flows. Dam break, which is incompressible gas‐liquid two‐phase flows. Subsonic jet impinging on a water pool, which is gas‐liquid two‐phase flows over compressible and incompressible regions and has all the flow features of problems 1, 2, and 3. …”

Section: Resultsmentioning

confidence: 99%

“…The flows are gas-liquid two-phase flows where compressible and incompressible flows coexist and have all the flow features of the validations. The results were compared with the experimental results by Ueno et al 11 The calculated problems are listed as follows.…”

Section: Resultsmentioning

confidence: 99%

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Pressure‐based unified solver for gas‐liquid two‐phase flows where compressible and incompressible flows coexist

Yamamoto

Takatani

2018

Numerical Methods in Fluids

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Summary We propose a pressure‐based unified solver for gas‐liquid two‐phase flows where compressible and incompressible flows coexist. Unlike the original thermo–Cubic Interpolated Propagation Combined Unified Procedure (CIP‐CUP) method proposed by Himeno et al (Transactions of the Japan Society of Mechanical Engineers, Series B, 2003), we split the advection term of the governing equations into a conservation part and into the rest. The splitting of advection term has two advantages. One is the high degree of freedom in choosing discretization schemes such as central‐difference schemes, upwind schemes, and Total Variation Diminishing (TVD) schemes. The other is the ease of implementation on unstructured grids. The advantages enable the analyses of various flows such as turbulent and supersonic ones in actual complicated boundaries. Therefore, the solver is useful for practical analyses. The solver was validated on the following test cases: subsonic single‐phase flows, incompressible single‐phase turbulent flows, and incompressible gas‐liquid two‐phase flows. With unstructured grids, we obtained the equivalent results as the ones with structured grids. After the validations, subsonic jet impinging on a water pool was calculated and compared with experimental results. It was confirmed that the calculated results were consistent with the experimental ones.

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Section: Discussionsupporting

confidence: 89%

Section: Subsonic Jet Impinging On a Water Poolsupporting

confidence: 59%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Pressure‐based unified solver for gas‐liquid two‐phase flows where compressible and incompressible flows coexist

Yamamoto

Takatani

2018

Numerical Methods in Fluids

Self Cite

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“…Several papers address the cavity formation and splash generation caused by gas blowing from a top lance. [1][2][3][4][5][6][7][8][9][10][11][12][13] For instance, according to Tokuda, 7) gas jet blowing from a top lance causes a cavity, and the resulting geometry can be classified into four types, depending on the gas flow rate (see Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

Visualization of Intermittent Splash with Gas Blowing from a Top Lance – Breakup of Cavity Surface Causing Intermittent Splash –

Sato¹,

Okada²,

Ueda

et al. 2020

ISIJ Int.

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This study aims to visualize an instantaneous event of intermittent splashing from a bath surface caused by gas blowing from a top lance. The visualization techniques include computational fluid dynamics (CFD) and an experimental procedure using a high-speed camera. A remarkable finding is the fact that the difference between the air pressure inside the cavity and hydrostatic pressure outside the cavity forms a constriction and causes a strong intermittent splash.

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Novel Two-step Simulation Method for the Dynamics of a Gas Jet-induced Depression on a Water Surface

Ando¹,

Komagata²,

Takahashi³

et al. 2015

Tetsu-to-Hagane

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Dynamic Behavior of Cavity Formed by a Top-blown Jet on Liquid Surface: Water Model Experiment

Cited by 5 publications

References 12 publications

Pressure‐based unified solver for gas‐liquid two‐phase flows where compressible and incompressible flows coexist

Pressure‐based unified solver for gas‐liquid two‐phase flows where compressible and incompressible flows coexist

Visualization of Intermittent Splash with Gas Blowing from a Top Lance – Breakup of Cavity Surface Causing Intermittent Splash –

Novel Two-step Simulation Method for the Dynamics of a Gas Jet-induced Depression on a Water Surface

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