Transient Effect of Battery of Injection Wells on Seawater Intrusion
Publication: Journal of Hydraulic Engineering
Volume 122, Issue 5
Abstract
The transient effect of battery of injection wells on seawater intrusion into coastal confined aquifers is analyzed using a quasi-three-dimensional areal finite-element model derived based on the sharp interface approach. Linear triangular elements are used to discretize the domain. The validity of the model is tested using the theoretical solutions and experimental results. The model is then used to carry out detailed parametric studies on the efficacy of battery of injection wells in controlling seawater intrusion. Hypothetical cases over a wide practical range are considered for this purpose. In the study, the motion of the interface is tracked for different combinations of the well spacing, injection rate, and the duration. Relationships are established between the key parameters in nondimensional forms, which have wider practical application. The injection wells are found to be effective in controlling the intrusion over a longer period of operation, running into several years. Reduction of intrusion up to 60–90% is achievable under favorable conditions. A specific example is solved to illustrate the usefulness of the results.
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References
1.
Bear, J. (1979). Hydraulics of groundwater . McGraw-Hill Book Co., Inc., New York, N.Y.
2.
Bear, J., and Dagan, G.(1964). “Moving interface in coastal aquifers.”J. Hydr. Div., ASCE, 90(4), 193–216.
3.
Bruington, A. E., and Seares, F. D.(1965). “Operating a sea water barrier project.”J. Irrig. and Drain. Div., ASCE, 91(1), 117–140.
4.
Essaid, H. I.(1990). “A multilayered sharp interface model of coupled freshwater and saltwater flow in coastal systems: model development and application.”Water Resour. Res., 26(7), 1431–1454.
5.
Kashef, A. A. I.(1976). “Control of salt water intrusion by recharge wells.”J. Irrig. and Drain. Div., ASCE, 102(4), 445–457.
6.
Liu, Y., and Chen, K.(1988). “A two dimensional mesh generator for variable order triangular and rectangular elements.”Comp. Struc., 29(6), 1033–1053.
7.
Rumer, R. R. Jr., and Harleman, D. R. F.(1963). “Intruded salt water wedge in porous media.”J. Hydr. Div., ASCE, 89(6), 193–220.
8.
Sa da Costa, A. A. G., and Wilson, J. L. (1979). “A numerical model of sea water intrusion in aquifers.”Rep. No. 247, Ralph M. Parsons Lab. for Water Resour. and Hydrodynamics, Dept. Civ. Engrg., Massachusetts Inst. of Technol., Cambridge, Mass.
9.
Shamir, U., and Dagan, G. (1971). “Motion of the seawater interface in coastal aquifers: a numerical solution.”Water Resour. Res., 7(3), 644–657.
10.
Strack, O. D. L.(1976). “A single-potential solution for regional interface problems in coastal aquifers.”Water Resour. Res., 12(6), 1165–1174.
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Copyright © 1996 American Society of Civil Engineers.
History
Published online: May 1, 1996
Published in print: May 1996
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