Effect of Free-Slip and No-Slip Boundaries on Isotropic Turbulence

Wissink, Jan G.; Herlina, Herlina

doi:10.1007/978-3-030-42822-8_3

Cited by 1 publication

(2 citation statements)

References 9 publications

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“…The results showed that the surface dispersion and the magnitude of heat flux near the gas-liquid interface are determined by the layered structure of the liquid phase. Herlina [15,16] and Khakpour [17], who focused on the effect of surfactant contamination on mass transfer, concluded that when the gas-liquid interface is heavily contaminated, its properties will converge to the wall (no-slip boundary conditions). Herlina [15,16] pointed out that the gas transport velocity was reduced by 80% for surface contamination at Sc = 500, while the concentration fluctuations near the interface were significantly reduced.…”

Section: Surface Renewal Model;mentioning

confidence: 99%

“…Herlina [15,16] and Khakpour [17], who focused on the effect of surfactant contamination on mass transfer, concluded that when the gas-liquid interface is heavily contaminated, its properties will converge to the wall (no-slip boundary conditions). Herlina [15,16] pointed out that the gas transport velocity was reduced by 80% for surface contamination at Sc = 500, while the concentration fluctuations near the interface were significantly reduced. Khakpour [17] showed that the interfacial scalar transfer was mainly affected by the surfactant through both short-wave suppression and updraft suppression effects.…”

Section: Surface Renewal Model;mentioning

confidence: 99%

See 1 more Smart Citation

Study on the Effect of Structural Parameters of Volume Control Tank on Gas–Liquid Mass Transfer

Chi

et al. 2023

Energies

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The volume control tank (VCT) is an important facility in the primary circuit of nuclear power plants. During the normal operation of nuclear power plants, the mass transfer between the gas and liquid phases occurs in the VCT at all times. It is driven by submerged jets, which may cause potential risks to the operational safety of nuclear power plants. It is necessary to conduct an in-depth study to gain a deeper understanding of the gas–liquid mass transfer behavior in the VCT. In this paper, a new gas–liquid mass transfer model is developed that combines a surface divergence model with a CFD model to accurately simulate the mass transfer process of the gas phase into the liquid phase. The simulation data were verified by the experimental results. The deviation between the simulation results and experimental results is less than 6.55%. Based on this model, a simulation study was carried out for the effect of structural parameters of the VCT on gas–liquid mass transfer. The results show that the double-vortex structure above the jet inlet, the surface jet at the gas–liquid interface, and the vortex at the end of the jet are the three factors dominating the gas–liquid mass transfer in the VCT. The gas–liquid mass transfer can be influenced by the jet diameter since the jet diameter has a remarkable effect on the Kolmogorov scale and the macroscopic flow field structure. Moreover, both the Kolmogorov scale and the macroscopic flow field structure can be affected by the jet height. However, these two effects cancel each other out. Thus, the influence of the jet height on the gas–liquid mass transfer rate is negligible.

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