Influence of stratified shear instabilities on particle sedimentation in three-dimensional simulations with application to marine carbon dioxide removal
Abstract
Stratified flow instabilities play a critical role in particle sedimentation in marine environments, influencing the efficacy of marine carbon dioxide removal strategies. Using direct numerical simulations, we reveal how these instabilities enhance or inhibit settling across flow regimes. Our findings highlight the dynamic interplay between turbulence, stratification, and particle dynamics, providing new insights into optimizing carbon removal techniques.
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Sinking speed can be modelled simplistically with Stokes Law; however, in real-world conditions, turbulence can significantly affect settling, potentially increasing sinking speed by orders of magnitude.
“Sinking speed can be modelled simplistically with Stokes Law; however, in real-world conditions, turbulence can significantly affect settling, potentially increasing sinking speed by orders of magnitude. 24”
From A framework for understanding efficiency losses of Ocean Alkalinity Enhancement (2026) · cites this paper as [24]
Cites
Assessing ocean alkalinity for carbon sequestration
Renforth, P., & Henderson, G. (2017) · Reviews of Geophysics · doi:10.1002/2016rg000533 · Cited by 655 · see citing works
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A framework for understanding efficiency losses of Ocean Alkalinity Enhancement
Lunstrum, A., Keller, D., Hartmann, J., & Moras, C. (2026) · CDRxiv · doi:10.70212/cdrxiv.2026517.v1 · Cited by 1 · see citing works
- Authors
- Yang, A. J. K., Timmermans, M.-L., Olsthoorn, J., & Kaminski, A. K.
- Affiliations
- Dalhousie University (CA)
- Yale University (US)
- Queen's University (CA)
- University of California, Berkeley (US)
- Venue
- Physical Review Fluids
- Publisher
- American Physical Society (APS)
- Published
- 2025-01-10
- Volume
- 10
- Issue
- 1
- ISSN
- 2469-990X (ISSN-L)
- OpenAlex
- W4406277540
- Cited by
- 7
- References
- 1
- Citations by year
- 2026: 5 · 2025: 2
- FWCI
- 2.71
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Physical Review Fluids (publishedVersion)
- Funders
- University of California Berkeley
- Topics
- Physical Sciences › Engineering › Ocean Engineering › Particle Dynamics in Fluid Flows
- Physical Sciences › Engineering › Computational Mechanics › Fluid Dynamics and Turbulent Flows
- Physical Sciences › Earth and Planetary Sciences › Oceanography › Oceanographic and Atmospheric Processes
- Keywords
- particle settling, marine carbon dioxide removal, stratified flow, turbulent flow, three-dimensional simulation, direct numerical simulation
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