Simulating Spiraling Bubble Movement in the EL Approach
Open accessAbstract
Simulating the detailed movement of a rising bubble can be challenging, especially when it comes to bubble path instabilities. A solution based on the Euler Lagrange (EL) approach is presented, where the bubbles show oscillating shape and/or instable paths while computational cost are at a far lower level than in DNS. The model calculates direction, shape and rotation of the bubbles. A lateral force based on rotation and direction is modeled to finally create typical instable path lines. This is embedded in an EL simulation, which can resolve bubble size distribution, mass transfer and chemical reactions. A parameter study was used to choose appropriate model constants for a mean bubble size of 3 mm. To ensure realistic solution, validation against experimental data of single rising bubbles and bubble swarms are presented. References with 2D and also 3D analysis are taken into account to compare simulative data in terms of typical geometrical parameters and average field values.
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Weber and Bart [241] found that their simulated bubble path compared with experimental data in a cylindrical reactor [242] is in reasonable agreement in terms of mean and instantaneous values of the vertical velocity component and the undulated trajectories.
“Their numerical results are in reasonable agreement with experimental ones in terms of mean and instantaneous values of the vertical velocity component and the ondulated trajectories.”
From Modeling and Simulation of Photobioreactors with Computational Fluid Dynamics—A Comprehensive Review (2022) · cites this paper as [241]
Section 3.1 (Experimental Setup; page unavailable) describes comparison with measurements from a cylindrical bubble column, and Section 4.2 (Bubble Path Characteristics; page unavailable) says the simulated path shapes and characteristics closely match the experimental ones. The velocity claim is overstated: the velocity-profile discussion says the experiment showed slower liquid flow than the simulation, while the Conclusions say simulated velocity fluctuations were similar to measurements in lower sections but too low in higher sections. Our copy does not establish agreement in both mean and instantaneous values of the vertical velocity component. (LLM, conf=0.86)
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References 23 · Cited by 7
Research works printed but not linked: 4
- Mason, L.R., Stevens, G.W. and Harvie, D.J.E. (2012) Multi-Scale Volume of Fluid Modelling of Droplet Coalescence. The 9th International Conference on CFD in the Minerals and Process Industries, Melbourne, 10-12 December 2012, 1-6.
- Launder, B.E. and Spalding, D.B. (1972) Lectures in Mathematical Models of Tur- bulence. Academic Press (London), London, New York.
- Tomiyama, A. (2004) Drag, Lift and Virtual Mass Force Acting on a Single Bubble. 3rd International Symposium on Two-Phase Flow Modelling and Experimentation, Pisa, 22-25 September 2004, 22-24.
- Smith, B.L. and Milelli, M. (1998) An Investigation of Confined Bubble Plumes. In- ternational Conference on Multiphase Flow, 98, 8-12.
- Authors
- Weber, A., Bart, H.-J., & Klar, A.
- Affiliations
- University of Kaiserslautern (DE)
- ORCID
- Klar, Axel
- Venue
- Open Journal of Fluid Dynamics
- Publisher
- Scientific Research Publishing, Inc.
- Published
- 2017
- Volume
- 07
- Issue
- 03
- Pages
- 288-309
- ISSN
- 2165-3852 (ISSN-L)
- 2165-3860
- OpenAlex
- W2718708695
- Cited by
- 7
- References
- 23
- Citations by year
- 2023: 1 · 2022: 1 · 2021: 1 · 2019: 4
- FWCI
- 0.49
- Type
- journal article
- Language
- en
- Open access
- diamond
- doi.org
- Locations
- Open Journal of Fluid Dynamics (publishedVersion, cc-by)
- arXiv (Cornell University) (submittedVersion)
- arXiv (Cornell University)
- Funders
- Deutsche Forschungsgemeinschaft (RTG GrK 1932)
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Fluid Dynamics and Mixing
- Physical Sciences › Engineering › Computational Mechanics › Fluid Dynamics and Heat Transfer
- Physical Sciences › Engineering › Ocean Engineering › Particle Dynamics in Fluid Flows
- Keywords
- bubble rise, Eulerian-Lagrangian simulation, bubble shape oscillations, bubble size distribution, mass transfer, bubble swarms
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