Environmental Fluid Mechanics

, Volume 17, Issue 3, pp 429–448 | Cite as

Measurement of mass exchange processes and coefficients in a simplified open-channel lateral cavity connected to a main stream

  • Emmanuel Mignot
  • Wei Cai
  • Juan Ignacio Polanco
  • Cristian Escauriaza
  • Nicolas Riviere
Original Article

Abstract

Lateral cavities are major storage zones in riverine environments for which the mass exchanges with the main stream strongly impact the characteristics of the habitat in these dead zones. An experimental work is presented here with a controlled main stream and a connected open-channel lateral cavity to assess the processes responsible for these exchanges and to quantify the exchange capacities. In a first step, the measurements of passive scalar transport allow us to identify the physical processes involved in the exchange of mass from the main stream and its spreading within the cavity. In a second step, the quantitative mass exchange coefficient, representative of the exchange capacity, is measured for 28 flow and cavity configurations. The sensibility analysis to the governing parameters proposed by the dimensional analysis then reveals that changing the geometric aspect ratio of the cavity does not affect the exchange coefficient while increasing the normalized water depth or decreasing the Reynolds number of the main stream tend to increase this coefficient. Indeed, these parameters modify both the growth rate of the mixing layer width at the interface and the amplitude of the alternating transverse velocity across the interface, thus affecting the exchange capacities from the main stream to the cavity.

Keywords

Mass exchange Turbulent diffusion Cavity Exchange coefficient Dye release method 

References

  1. 1.
    Altai W, Chu VH (1997) Retention time in a recirculating flow. 27th congress of IAHR, 10–15 August 1997, San Francisco, pp 9–14Google Scholar
  2. 2.
    Argerich A, Marti E, Sabater F, Haggerty R, Ribot M (2011) Influence of transient storage on stream nutrient uptake based on substrata manipulation. Aquat Sci 73:365–376. doi:10.0007/s00027-011-0184-9 CrossRefGoogle Scholar
  3. 3.
    Booij R (1989) Exchange of mass in harbors. 23rd congress of IAHR, 21–25 August 1989, Ottawa, Canada, pp D69–D74Google Scholar
  4. 4.
    Caton F, Britter RE, Dalziel S (2003) Dispersion mechanism in a street Canyon. Atmos Environ 37:693–702CrossRefGoogle Scholar
  5. 5.
    Ensign SH, Doyle MW (2005) In-channel transient storage and associated nutrient retention: evidence from experimental manipulations. Limnol Oceanogr 50(6):1740–1751CrossRefGoogle Scholar
  6. 6.
    Erpicum S, Meile T, Dewals B, Pirotton M, Schleiss A (2009) 2D numerical flow modeling in a macro-rough channel. Int J Numer Methods Fluids 61:1227–1246CrossRefGoogle Scholar
  7. 7.
    Han L, Mignot E, Riviere N (2017) Shallow mixing layer downstream a sudden expansion. J Hydraul Eng. Accepted for publicationGoogle Scholar
  8. 8.
    Jackson TR, Haggerty R, Apte SV, O’Connor BL (2013) A mean residence time relationship for lateral cavities in gravel-bed rivers and streams: incorporating streambed roughness and cavity shape. Water Resour Res 49:3642–3650CrossRefGoogle Scholar
  9. 9.
    Jackson TR, Apte SV, Haggerty R, Budwig R (2015) Flow structure and mean residence times of lateral cavities in open channel flows: influence of bed roughness and shape. Environ Fluid Mech 15(5):1069–1100CrossRefGoogle Scholar
  10. 10.
    Jahanmiri M (2011) Particle image velocimetry: Fundamentals and its application. Report 2011:03, ISSN. Chalmers University of Technology, Goteborg, pp 1652–8549Google Scholar
  11. 11.
    Karimpour S, Chu VH (2015) Mixing in shallow waters in high Froude number. 22nd Canadian hydrotechnical conference—water for sustainable development: coping with climate and environmental changes, Montreal, 29 April–2 May 2005Google Scholar
  12. 12.
    Kimura I, Hosoda T (1997) Fundamental properties of flows in open channels with dead zone. J Hydraul Engineering 123(2):98–107CrossRefGoogle Scholar
  13. 13.
    Langendoen EJ, Kranenburg C, Booij R (1994) Flow patterns and exchange of matter in tidal harbours. J Hydraul Res 32(2):259–270CrossRefGoogle Scholar
  14. 14.
    Lecoz J, Michalkova M, Hauet A, Comaj M, Dramais G, Holubova K, Piegay H, Paquier A (2010) Morphodynamics of the exit of a cutoff meander: experimental findings from field and laboratory studies. Earth Surf Proc Land 35:249–261CrossRefGoogle Scholar
  15. 15.
    Li CW, Gu J (2002) 3D layered-integrated modelling of mass exchange in semi-enclosed water bodies. J Hydraul Res 39(4):403–411CrossRefGoogle Scholar
  16. 16.
    Li CW, Ip KW (1999) Residence time in semi-enclosed water bodies. Civil and environmental engineering conference, Bangkok, 8–12 November 1999, pp VI.13–VI.16Google Scholar
  17. 17.
    McCoy A, Constantinescu G, Weber LJ (2008) Numerical investigation of flow hydrodynamics in a channel with a series of groynes. J Hydraul Eng 134(2):157–172CrossRefGoogle Scholar
  18. 18.
    Markides CN, Fokaides PA, Neophytou MK (2010) Flow and exchange processes in homogeneous urban street canyon geometries: an experimental study using particle image velocimetry. 9th HSTAM international congress on mechanics, LimassolGoogle Scholar
  19. 19.
    Meile T, Boillat J-L, Schleiss AJ (2011) Water-surface oscillations in channels with axi-symmetric cavities. J Hydraul Res 49(1):73–81CrossRefGoogle Scholar
  20. 20.
    Mignot E, Zeng C, Dominguez G, Li C-W, Rivière N, Bazin P-H (2013) Impact of topographic obstacles on the discharge distribution in open-channel bifurcations. J Hydrol 494(28):10–19CrossRefGoogle Scholar
  21. 21.
    Mignot E, Doppler D, Riviere N, Vinkovic I, Gence J, Simoens S (2014) Analysis of flow separation using a local frame-axis: application to the open-channel bifurcation. J Hydraul Eng 140:280–290CrossRefGoogle Scholar
  22. 22.
    Mignot E, Cai W, Launay G, Riviere N, Escauriaza C (2016) Coherent turbulent structures at the mixing-interface of a square open-channel lateral cavity. Phys Fluids 28:045104CrossRefGoogle Scholar
  23. 23.
    Mignot E, Cai W, Riviere N (2017) Measurement of the flow pattern in open-channel lateral cavities with increasing aspect ratio. J Hydraul Res (Submitted)Google Scholar
  24. 24.
    Mizumura K, Yamasaka M (2002) Flow in open channel embayments. J Hydraul Eng 128(12):1098–1101CrossRefGoogle Scholar
  25. 25.
    Muto Y, Imamoto H, Ishigaki T (2000) Velocity measurements in a straight open channel with a rectangular embayment. Proceedings of 12th Congress of APD-IAHR, BangkokGoogle Scholar
  26. 26.
    Pope S (2000) Turbulent flows. Cambridge University Press, CambridgeCrossRefGoogle Scholar
  27. 27.
    Salizzoni P, Soulhac L, Mejean P (2009) Street canyon ventilation and atmospheric turbulence. Atmos Environ 43(32):5056–5067CrossRefGoogle Scholar
  28. 28.
    Sanjou M, Nezu I (2013) Hydrodynamic characteristics and related mass-transfer properties in open-channel flows with rectangular embayment zone. Environ Fluid Mech 13(6):527–555CrossRefGoogle Scholar
  29. 29.
    Tuna BA, Tinar E, Rockwell D (2013) Shallow flow past a cavity: globally coupled oscillations as a function of depth. Exp Fluids 54:1586CrossRefGoogle Scholar
  30. 30.
    Tuna BA, Rockwell D (2014) Self-sustained oscillations of shallow flow past sequential cavities. J Fluid Mech 758:655–685CrossRefGoogle Scholar
  31. 31.
    Uijtewaal W, Lehmann D, van Mazijk A (2001) Exchange processes between a river and its groyne fields: model experiments. J Hydraul Eng 127(11):928–936CrossRefGoogle Scholar
  32. 32.
    Valentine EM, Wood IR (1977) Longitudinal dispersion with dead zones. J Hydraul Div ASCE 103(9):975–990Google Scholar
  33. 33.
    Weitbrecht V, Socolofsky SA, Jirka GH (2008) Experiments on mass exchange between groin fields and main stream rivers. J Hydraul Eng 134(2):173–183CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2016

Authors and Affiliations

  1. 1.Univ Lyon, INSA Lyon, CNRS, LMFA UMR5509VilleurbanneFrance
  2. 2.Departamento de Ingeniería Hidráulica y Ambiental. Pontificia Universidad Católica de ChileChile and Centro de Investigación para la Gestion de Desastres Naturales (CIGIDEN)SantiagoChile

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