Laboratory studies defining flow regimes for negatively buoyant surface discharges into crossflow
Tóm tắt
Surface discharges of negatively buoyant jets into moving ambient water create a range of complex flow patterns. These complexities arise through the interplay between the discharge’s initial fluxes and the motion of the ambient current. In this study a series of laboratory experiments were conducted for negatively buoyant surface discharges into crossflow to investigate flow patterns under different discharge and ambient conditions. The results compared with simulations of the CORMIX model, an expert system for ocean outfall design. In CORMIX, the simulation module DHYDRO for dense discharges has been used. Finally the flow different patterns were arranged in a dimensionless diagram to propose a modified flow classification system with new criteria.
Tài liệu tham khảo
Doneker RL, Jirka GH (2001) CORMIX-GI systems for mixing zone analysis of brine waste water disposal. Desalination 139: 263–274
Purnama A, Al-Barwani HH, Al-Lawatia M (2003) Modeling dispersion of brine waste from a coastal desalination plant. Desalination 155: 41–47
Bleninger T, Jirka GH (2008) Modeling and environmentally sound management of brine discharges from desalination plants. Desalination 221: 585–597
Shao D, Law AWK (2010) Mixing and boundary interactions of 30° and 45° inclined dense jets. Environ Fluid Mech 10: 521–553
Abessi O, Saeedi M, Davidson M, HajizadehZaker N (2011) Flow classification of negatively buoyant surface discharge in an ambient current. J Coastal Res. doi:10.2112/JCOASTRES-D-10-00131.1
Robert HS, Gibbs M, Waugh B (2005) Field calibration of a formula for entrance mixing of river inflows to lake: Lake Taupo, North Island, New Zealand. New Zeal J Mar Fresh 39: 785–802
Roberts PJW, Tome G (1987) Inclined dense jets in flowing current. J Hydraul Eng 113: 323–341
Roberts PJW, Ferrier A, Daviero G (1997) Mixing in inclined dense jet. J Hydraul Eng 123: 693–699
Kikkert G, Davidson M, Nokes I (2007) Inclined negatively buoyant discharges. J Hydraul Eng 133: 545–554
Ahmed M, Shayya WH, Hoey D, Al-Handaly J (2001) Brine disposal from reverse osmosis desalination plants in Oman and the United Arab Emirates. Desalination 133: 135–147
Bleninger T, Niepelt A, Jirka GH (2010) Desalination plant discharge calculator. Desalination Water Treat 13: 156–173
Jones RG, Nash DJ, Jirka HG (1996) CORMIX3: an experimental system for mixing zone analysis and prediction of buoyant surface discharges. Cornell University, User manual, DeFrees Hydraulics Laboratory, New York
Lattemann S, Hopner T (2003) Seawater desalination: impacts of brine and chemical discharges on the marine environment. Desalination Publ, L’Aquila, p 142. ISBN:0–6689–062–9
Jones G, Nash D, Doneker L, Jirka H (2007) Buoyant surface discharge into water bodies. I: flow classification and prediction methodology. J Hydraul Eng 133: 1010–1020
Jirka GH, Adams EE, Stolzenbach KD (1981) Buoyant surface jets. J Hydraul Div 107: 1467–1487
Chu VH, Jirka GH (1986) Chapter 25: surface buoyant jets, encyclopedia of fluid mechanics. Gulf Publishing Company, Houston, p 155
Kassem A, Imran J (2001) Simulation of turbid underflows generated by the plunging of a river. Geology 29(7): 655–658
Jen Y, Wiegel RL, Mobarek I (1966) Surface discharges of horizontal warm water jets. Power Div 92: 1–29
Motz LH, Benedict BA (1970) Heated surface jet discharged into a flowing ambient stream. Vanderbilt University, Department of Environmental and Water Resources Engineering, Nashville (Tech. Rep. 4)
Stefan H, Hayakawa N, Schiebe FR (1971) Surface discharge of heated water. U.S. Environmental Protection Agency, Washington, DC (Rep. 16130)
Prych EA (1972) A warm water effluent analyzed as a buoyant jet. Sverigas Meteorologiska och Hydrologiska Institut, vol. 21. Service Hydraulique, Stockholm
Carter HH, Regier R (1974) The three-dimensional heated surface jet in a crossflow. Johns Hopkins University, Chesapeake Bay Institute, Baltimore, p 50 (Tech. Rep. 88)
Shirazi MA, Davis LR (1974) Workbook on thermal plume prediction. U.S. Environmental Protection Agency, Corvallis. Technical Series, 2-surface discharges (Tech. Rep. EPA-R2-72-0056)
Abdelwahed MST, Chu VH (1981) Surface jets and surface plumes in crossflows. McGill University, Fluid Mechanics Laboratory, Montreal, p 120 (Tech. Rep. 81–1)
Delft Hydraulics (1983) Buoyant surface jets in crossflow. Delft Hydraulics Laboratory, Delft, p 210. Report on experimental investigation-S350-II
Brocard DN (1984) Surface buoyant jets in reversing and steady crossflows. 1: experiments. Alden Research Laboratory, Worcester, p 80 (Tech. Rep. 18-84/M424F)
Jirka GH (2004) Integral model for turbulent buoyant jets in unbounded stratified flows. Part 1: single round buoyant jet. Environ Fluid Mech 4(1): 1–56
Jirka GH (2007) Buoyant surface discharges into water bodies. II: jet integral model. J Hydraul Eng 133(9): 1021–1036
Doneker LR, Jirka GH (1997) D-CORMIX continues dredge disposal mixing zone water quality model laboratory and filed data validation study. U.S. environmental protection agency, Washington, DC
Doneker RL, Jirka GH (2007) CORMIX user manual: a hydrodynamic mixing zone model and decision support system for pollutant discharges into surface waters. U.S.EPA-823-K-07-001
Fischer B, List JE, Imberger J, Brooks HN (1979) Mixing in inland and coastal waters. Academic Press, Inc., New York, p 212
Millero FJ, Poisson A (1981) International one atmosphere equation of state for sea water. Deep sea Res 13: 453–459
Nokes RI (2005) ImageStream version 4.01. University of Canterbury. Image Processing Software, Christchurch