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A simplified approach to address turbulence modulation in turbidity currents as a response to slope breaks and loss of lateral confinement

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Abstract

Turbidity currents traversing canyon-fan systems flow over bed slopes that decrease in the downstream direction. This slope decrease eventually causes turbidity currents to decelerate and enter a net-depositional mode. When the slope decrease is relatively rapid in the downstream direction, the turbidity current undergoes a concomitantly rapid and substantial transition. Similar conditions are found when turbidity currents debouch to fan systems with loss of lateral confinement. In this work a simplified approach to perform direct numerical simulation of continuous turbidity currents undergoing slope breaks and loss of lateral confinement is presented and applied to study turbulence modulation in the flow. The presence of settling sediment particles breaks the top–bottom symmetry of the flow, with a tendency to self-stratify. This self-stratification damps turbulence, particularly near the bottom wall, affecting substantially the flow’s ability to transport sediment in suspension. This work reports results on two different situations: turbidity currents driven by fine and coarser sediment flowing through a decreasing slope. In the case of fine sediment, after the reduction in the slope of the channel, the flow remains turbulent with only a modest influence on turbulence statistics. In the case of coarse sediments, after the change in slope, turbulence is totally suppressed.

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References

  1. Allen J (1985) Principles of physical sedimentology. George Allen and Unwin Ltd., London

    Book  Google Scholar 

  2. Amy L, Hogg A, Peakall J, Talling P (2005) Abrupt transitions in gravity currents. J Geophys Res 110:F03001. doi:10.1029/2004JF000197

    Google Scholar 

  3. Armenio V, Sarkar S (2002) An investigation of stably stratified turbulent channel flow using large-eddy simulation. J Fluid Mech 459:1–42

    Article  Google Scholar 

  4. Baas J, Best J (2002) Turbulence modulation in clay-rich sediment-laden flows and some implications for sediment deposition. J Sediment Res 72(3):336–340

    Article  Google Scholar 

  5. Brown D, Cortez R, Minion M (2001) Accurate projection methods for the incompressible Navier–Stokes equations. J Comput Phys 168:464–499

    Article  Google Scholar 

  6. Cantero M, Balachandar S, García M (2007a) Highly resolved simulations of cylindrical density currents. J Fluid Mech 590:437–469

    Article  Google Scholar 

  7. Cantero M, Lee JR, Balachandar S, García M (2007b) On the front velocity of gravity currents. J Fluid Mech 586:1–39

    Article  Google Scholar 

  8. Cantero M, Balachandar S, García M (2008a) An Eulerian–Eulerian model for gravity currents driven by inertial particles. Int J Multiph Flow 34:484–501

    Article  Google Scholar 

  9. Cantero M, Balachandar S, M García, Bock D (2008b) Turbulent structures in planar gravity currents and their influence of the flow dynamics. J Geophys Res Oceans 113:C08,018

    Article  Google Scholar 

  10. Cantero M, García M, Balachandar S (2008c) Effect of particle inertia on the dynamics of depositional particulate density currents. Comput Geosci 34:1307–1318

    Article  Google Scholar 

  11. Cantero M, Balachandar S, Cantelli A, Pirmez C, Parker G (2009a) Turbidity current with a roof: direct numerical simulation of self-stratified turbulent channel flow driven by suspended sediment. J Geophys Res Oceans 114:C03,008

    Article  Google Scholar 

  12. Cantero M, Balachandar S, Parker G (2009b) Direct numerical simulation of stratification effects in a sediment-laden turbulent channel flow. J Turbul 10(27):1–28

    Google Scholar 

  13. Cantero MI, Cantelli A, Pirmez C, Balachandar S, Mohrig D, Hickson TA, Yeh T, Naruse H, Parker G (2012) Emplacement of massive turbidites linked to extinction of turbulence in turbidity currents. Nat Geosci 5(1):42–45. doi:10.1038/ngeo1320

    Article  Google Scholar 

  14. Canuto C, Hussaini M, Quarteroni A, Zang T (1988) Spectral methods in fluid dynamics. Springer, New York, p 557

    Book  Google Scholar 

  15. Cortese T, Balachandar S (1995) High performance spectral simulation of turbulent flows in massively parallel machines with distributed memory. Int J Supercomput Appl 9(3):187–204

    Article  Google Scholar 

  16. Ferry J, Balachandar S (2001) A fast Eulerian method for disperse two-phase flow. Int J Multiph Flows 27:1199–1226

    Article  Google Scholar 

  17. García M (1992) Turbidity currents. In: Brekhovskikh L, Turekian K, Emery K, Tseng C (eds) Encyclopedia of earth system science, vol 4. Academic Press Inc., New York, pp 399–408

    Google Scholar 

  18. García M (ed) (2008) Manual 110. Sedimentation engineering: processes, measurements, modeling and practice. American Society of Civil Engineering (ASCE), Reston, p 1150

    Google Scholar 

  19. Gerber T, Pratson L, Wolonsky M, Steel R, Mohr J, Swenson J, Paola C (2008) Clinoform progradation by turbidity currents: modeling and experiments. J Sediment Res 78:220–238

    Article  Google Scholar 

  20. Härtel C, Meiburg E, Necker F (2000) Analysis and direct numerical simulation of the flow at a gravity-current head. Part 1. Flow topology and front speed for slip and no-slip boundaries. J Fluid Mech 418: 189–212

    Article  Google Scholar 

  21. Necker F, Härtel C, Kleiser L, Meiburg E (2005) Mixing and dissipation in particle-driven gravity currents. J Fluid Mech 545:339–372

    Article  Google Scholar 

  22. Piper D, Savoye B (1993) Processes of late quaternary turbidity current flow and deposition on the Var deep-sea fan, north–west Mediterranean Sea. Sedimentology 40:557–582

    Article  Google Scholar 

  23. Pirmez C, Imran J (2003) Reconstruction of turbidity currents in amazon channel. Mar Petrol Geol 20:823–849

    Article  Google Scholar 

  24. Quadrio M, Luchini P (2003) Integral space–time scales in turbulent wall flows. Phys Fluids 15(8): 2219–2227

    Article  Google Scholar 

  25. Segre PN, Liu F, Umbanhowar P, Weitz DA (2001) An effective gravitational temperature for sedimentation. Nature 409:594–597

    Article  Google Scholar 

  26. Sequeiros OE, Naruse H, Endo N, Garcia MH, Parker G (2009) Experimental study on self-accelerating turbidity currents. J Geophys Res 114:C05025. doi:10.1029/2008JC005149

    Google Scholar 

  27. Shringarpure M, Cantero MI, Balachandar S (2012) Dynamics of complete turbulence suppression in turbidity currents driven by monodisperse suspensions of sediment. J Fluid Mech 712:384–417

    Article  Google Scholar 

  28. Stacey M, Bowen A (1988a) The vertical structure of density and turbidity currents: theory and observations. J Geophys Res 93:3528–3542

    Article  Google Scholar 

  29. Stacey M, Bowen A (1988b) The vertical structure of turbidity currents and a necessary condition for self-maintenance. J Geophys Res 93:3543–3553

    Article  Google Scholar 

  30. Talling PJ, Wynn RB, Masson DG, Frenz M, Cronin BT, Schiebel R, Akhmetzhanov AM, Dallmeier-Tiessen S, Benetti S, Weaver PPE, Georgiopoulou A, Zuhlsdorff C, Amy LA (2007) Onset of submarine debris flow deposition far from original giant landslide. Nature 450(7169):541–544. doi:10.1038/nature06313

    Article  Google Scholar 

  31. Turner J (1973) Buoyancy effects in fluids. Cambridge University Press, Cambridge

    Book  Google Scholar 

Download references

Acknowledgments

Mariano I. Cantero gratefully acknowledges the support from CONICET, CNEA and ANPCyT through PICT-2010-2459. We gratefully acknowledge the support from Shell International Exploration and Production and from the National Center for Supercomputing Applications (NCSA) at the University of Illinois at Urbana-Champaign (UIUC). The participation of Gary Parker in this research was made possible by the National Center for Earth Surface Dynamics (NCED), a Science and Technology Center funded by the U.S. National Science Foundation. S. Balachandar acknowledges support from National Science Foundation through the Grants OCE-1131016 and OISE-0968313.

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Cantero, M.I., Balachandar, S., Cantelli, A. et al. A simplified approach to address turbulence modulation in turbidity currents as a response to slope breaks and loss of lateral confinement. Environ Fluid Mech 14, 371–385 (2014). https://doi.org/10.1007/s10652-013-9302-7

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  • DOI: https://doi.org/10.1007/s10652-013-9302-7

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