VOF-based simulation of reactive mass transfer across deformable interfaces

Bothe, Dieter; Kröger, Michael; Alke, A.; Warnecke, Hans‐Joachim

doi:10.1504/pcfd.2009.027363

Cited by 20 publications

(10 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5 (b), the rising bubble shape deforms from a sphere to a spherical cap and the concentration diffuses from the edge of the spherical cap bubble. These trends of the concentration profiles were in good agreement with the previous report by Bothe et al [3]. Therefore, it was found from these results that the concentration profiles are affected by the bubble shapes depending on the viscosity of the working fluid even if the bubble contraction due to the mass transfer is neglected.…”

Section: Mass Transfer From Vapor Bubble Rising In Very High Viscous supporting

confidence: 92%

“…On the other hand, the bubble behavior in the melting processes is hard to optically observe because of the high temperature condition. Recently, owing to the increase of the computer power, a direct numerical simulation of mass transfer from a bubble has been reported by Davidson and Rudman [1], Bothe et al [2,3], Darmana et al [4], Alke et al [5] and Hayashi and Tomiyama [6]. Therefore, the direct numerical simulation is one of the promising approaches in order to clarify the bubble rising behavior in the very high viscous fluid.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Numerical Study on Mass Transfer of a Vapor Bubble Rising in Very High Viscous Fluid

Kunugi

Ose

Enomoto

et al. 2014

The Journal of Computational Multiphase Flows

View full text Add to dashboard Cite

This study focused on a bubble rising behavior in a molten glass because it is important to improve the efficiency of removal of bubbles from the molten glass. On the other hand, it is expected that some gas species which exists in a bubble are transferred into the molten glass through the bubble interface, i.e., the mass transfer, subsequently, it may cause a bubble contraction in the molten glass. In this paper, in order to understand the bubble rising behavior with its contraction caused by the mass transfer through the bubble interface in the very high viscous fluid such as the molten glass, a bubble contraction model has been developed. The direct numerical simulations based on the MARS (Multi-interface Advection and Reconstruction Solver) coupled with the mass transfer equation and the bubble contraction model regarding the mass transfer from the rising bubble in very high viscous fluid have been performed. Here, the working fluids were water vapor as the gas species and the molten glass as the very high viscous fluid. Also, the jump conditions at the bubble interface for the mass transfer were examined. Furthermore, the influence of the bubble contraction for the bubble rising compared to that in the water as a normal viscous fluid was investigated. From the result of the numerical simulations, it was found that the bubble rising behavior was strongly affected not only by the viscosity of the working fluid but also by the bubble contraction due to the mass transfer through the bubble interface.

show abstract

Section: Mass Transfer From Vapor Bubble Rising In Very High Viscous supporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Numerical Study on Mass Transfer of a Vapor Bubble Rising in Very High Viscous Fluid

Kunugi

Ose

Enomoto

et al. 2014

The Journal of Computational Multiphase Flows

View full text Add to dashboard Cite

show abstract

“…Optimally, an adaptive mesh refinement (AMR) approach would be adopted, which is the strategy of the CSI group in Darmstadt. They have shown single rising bubbles with mass transfer (Alke and Bothe, 2008) using the VOF method, extended their work with chemical reactions by Bothe et al (2009) and it has been improved using a subgrid-scale model for mass transfer so that Schmidt numbers up to 512 for single rising bubbles could be achieved (Bothe and Fleckenstein, 2013). Their most recent work (Deising et al, 2016) discusses the implementation of a Continuous Species Transfer (CST) model (see also Marschall et al, 2012) in the adaptive mesh refinement framework, using VOF with interface reconstruction.…”

Section: Mass Transfermentioning

confidence: 99%

An improved Front-Tracking technique for the simulation of mass transfer in dense bubbly flows

Roghair

Annaland

Kuipers

2016

Chemical Engineering Science

View full text Add to dashboard Cite

“…The code FS3D is specifically designed for the investigation of two-phase flows [22] and has been extended both at the ITLR and in the Mathematical Modeling and Analysis (MMA) group at the Center of Smart Interfaces, Technical University of Darmstadt. A few examples are the numerical modeling of atomization process in an ultrasonic field [18], the calculation of lift forces on gas bubbles [6], and the mass transfer of gas bubbles without [4] and with [5] chemical reactions. Also, first preliminary tests on non-Newtonian flow behavior were carried out in [18,30].…”

Section: Mathematical Modelingmentioning

confidence: 99%