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Sediment characterization of bottom propagating reversing buoyancy particle-bearing jets

Mohnish Kapil1, Bruce R. Sutherland2,3,*, and Sridhar Balasubramanian1,4,†

  • 1Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra, 400076, India
  • 2Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
  • 3Department of Earth & Atmospheric Sciences, University of Alberta, Edmonton, Alberta, Canada T6G 2E3
  • 4IDP in Climate Studies, Indian Institute of Technology Bombay, Mumbai, Maharashtra, 400076, India

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Phys. Rev. Fluids 7, 104302 – Published 26 October, 2022

DOI: https://doi.org/10.1103/PhysRevFluids.7.104302

Abstract

We develop theory and perform laboratory experiments on reversing buoyancy particle-bearing wall jets in a uniform ambient fluid, examining the lofting characteristics of the jet and particle sedimentation. Theoretical considerations involving several parameters predict the lofting location and the deposition pattern. The suction forces present at the bottom wall dominantly influence the lofting location of the jet. The sediment dynamics are influenced by drag at the bottom wall, entrainment of ambient fluid into the jet, and several scale factors involving the settling of the particles. Our theory shows that the ratio of deposit width to length depends on the jet's drag coefficient and entrainment dynamics. Experimentally, we find that this ratio is higher when the particle concentration is large, suggesting that sedimenting particles exert a nonnegligible additional drag on the jet. The results clearly show changes in the jet dynamics brought about by the presence of particles in reversing buoyancy jets.

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References (27)

  1. R. Sparks, R. Bonnecaze, H. Huppert, J. Lister, M. Hallworth, H. Mader, and J. Philliips, Sediment-laden gravity currents with reversing buoyancy, Earth Planet. Sci. Lett. 114, 243 (1993).
  2. A. Hogg, H. Huppert, and M. Hallworth, Reversing buoyancy of particle-driven gravity currents, Phys. Fluids 11, 2891 (1999).
  3. A. W. Woods and J. Kienle, The dynamics and thermodynamics of volcanic clouds: Theory and observations from the April 15 and April 21, 1990 eruptions of redoubt volcano, Alaska, J. Volcanol. Geotherm. Res. 62, 273 (1994).
  4. B. E. Hürzeler, J. Imberger, and G. N. Ivey, Dynamics of turbidity current with reversing buoyancy, J. Hydraul. Eng. 122, 230 (1996).
  5. C. Gladstone and D. Pritchard, Patterns of deposition from experimental turbidity currents with reversing buoyancy, Sedimentology 57, 53 (2010).
  6. R. C. Y. Koh and N. H. Brooks, Fluid mechanics of waste-water disposal in the ocean, Annu. Rev. Fluid Mech. 7, 187 (1975).
  7. T. C. Harris, A. J. Hogg, and H. E. Huppert, A mathematical framework for the analysis of particle-driven gravity currents, Proc. R. Soc. London A 457, 1241 (2001).
  8. E. Steel, J. Buttles, A. R. Simms, D. Mohrig, and E. Meiburg, The role of buoyancy reversal in turbidite deposition and submarine fan geometry, Geology 45, 35 (2017).
  9. O. E. Sequeiros, A. Cantelli, E. Viparelli, J. D. L. White, M. H. Garcia, and G. Parker, Modeling turbidity currents with nonuniform sediment and reverse buoyancy, Water Resour. Res. 45, W06408 (2009).
  10. B. R. Sutherland and Y. S. D. Hong, Sedimentation from particle-bearing plumes in a stratified ambient, Phys. Rev. Fluids 1, 074302 (2016).
  11. H. N. Mirajkar, S. Tirodkar, and S. Balasubramanian, Experimental study on growth and spread of dispersed particle-laden plume in a linearly stratified environment, Environ. Fluid Mech. 15, 1241 (2015).
  12. D. D. Apsley and G. F. Lane-Serff, Collapse of particle-laden buoyant plumes, J. Fluid Mech. 865, 904 (2019).
  13. G. Abraham, Jet diffusion in stagnant ambient fluid, Ph.D. thesis, Delft University of Technology, 1963.
  14. E. Hirst, Buoyant jets discharged to quiescent stratified ambients, J. Geophys. Res. (1896–1977) 76, 7375 (1971).
  15. B. R. Morton, G. I. Taylor, and J. S. Turner, Turbulent gravitational convection from maintained and instantaneous sources, Proc. R. Soc. London A 234, 1 (1956).
  16. G. H. Jirka, Integral model for turbulent buoyant jets in unbounded stratified flows. Part I: Single round jet, Environ. Fluid Mech. 4, 1 (2004).
  17. J. Sharp and B. Vyas, The buoyant wall jet, Proc. Inst. Civ. Eng. 63, 593 (1977).
  18. H. C. Burridge and G. R. Hunt, From free jets to clinging wall jets: The influence of a horizontal boundary on a horizontally forced buoyant jet, Phys. Rev. Fluids 2, 023501 (2017).
  19. M. Kapil, B. R. Sutherland, and S. Balasubramanian, Spreading and sedimentation from bottom-propagating particle-bearing jets, J. Fluid Mech. 907, A20 (2021).
  20. A. J. Cuthbertson, D. D. Apsley, P. A. Davies, G. Lipari, and P. K. Stansby, Deposition from particle-laden, plane, turbulent, buoyant jets, J. Hydraul. Eng. 134, 1110 (2008).
  21. E. Ezhova, C. Cenedese, and L. Brandt, Dynamics of three-dimensional turbulent wall plumes and implications for estimates of submarine glacier melting, J. Phys. Oceanogr. 48, 1941 (2018).
  22. H. A. Einstein, Deposition of suspended particles in a gravel bed, J. Hydr. Div. 94, 1197 (1968).
  23. D. Martin and R. Nokes, Crystal settling in a vigorously convecting magma chamber, Nature (London) 332, 534 (1988).
  24. R. Bonnecaze, H. Huppert, and J. Lister, Particle-driven gravity currents, J. Fluid Mech. 250, 339 (1993).
  25. E. Kaminski, S. Tait, and G. Carazzo, Turbulent entrainment in jets with arbitrary buoyancy, J. Fluid Mech. 526, 361 (2005).
  26. G. R. Hunt and P. F. Linden, Steady-state flows in an enclosure ventilated by buoyancy forces assisted by wind, J. Fluid Mech. 426, 355 (2001).
  27. R. J. Munro and S. B. Dalziel, Attenuation technique for measuring sediment displacement levels, Exp. Fluids 39, 602 (2005).

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Phys. Rev. Fluids 7, 104302– Published 26 October, 2022
  • Received 1 July 2022
  • Accepted 7 October 2022
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