About some features of forecasting masstransport processes in saturated - unsaturated media.
Sergii Telyma 1*, Olena Voloshkina 2
1Institute of Hydromechanics of NAS Ukraine, Zhelyabova str. 8/4, Kyiv, 03057, Ukraine
2Kyiv National University of Construction and Architecture, Vozduhoflotsky Avenue 31, Kyiv, 03680, Ukraine
Received: 11/01/2018, Accepted: 11/14/2018, Available online: 11/14/2018.
DOI: https://doi.org/10.32557/useful-2-4-2018-0001
HDL: http://hdl.handle.net/20.500.12334/53
*Corresponding author: e-mail: e.voloshki@gmail.com
Under a creative commons license. Volume 2, Issue 4, 2018, pages: 01-08
Author Keywords: forecasting, migration, pollution, filtration, moisture-salt transfer, modeling, saturated-unsaturated media.
Abstract
The general methodic of forecasting the flow and moisture-salt transfer processes in saturated-unsaturated media on the base of the methods of mathematic modeling for case of the arbitrary vertical domains is proposed.The practical example of the solution the migration problem of pollutions at filtration from the irrigated channel to reservoir is demonstrated.
1. Introduction.
Geofiltration substantiation of complex measures to protect groundwaters from pollution used for drinking and industrial water supply as well as solving practical problems related to dissolution of salts, washing of saline soils and desalination of mineralized water requires the studying the processes transport of the salts and other polluting components by filtration flows in the zones of full and incomplete saturation of porous medium. At the same time the given problems of forecasting of the processes of flow and masstransfer may be solved effectively by the methods of the numerical modeling . In proposed work the generalized methodic of mathematical modeling of the above processes for the cases of arbitrary vertical areas of filtration and migration of pollutions and a practical recommendations of its using for solutions the complex problems of environmental protection are presented.
Conclusions
Developed methodic of solution two-dimensional masstransport problems in saturated-unsaturated media in the domains of arbitrary forms allows to work on the complex tasks of prediction the processes of pollutions migration on irrigated lands and build-up territories. In some cases solution of above problems by the numerical modeling is more trustworthy and substantiate in comparison with using of the one-dimensional analitic ones. Presented results of solution of the practical problem show on the wide possibilities of using the proposed methodic.
References
[1] Alexeev V.S., Kommunar G.M., Sherjukov B.S. Masstransfer in the watersaturated rocks. Achivements of the science and technics.M.,VINITY. Hydrogeology and engineering geology series, 1989.-11.- 142p.
[2] Baljuk S.A., Romaschenko M.I., Stashuk V.A. The science basis of the protection and rational exploita-tion of the irrigated lands in Ukraine. K., Agrarian science, 2009.-624p
[3] Baljuk S.A., Romaschenko M.I., Truskavetskii R.S. The irrigation of the soils. Kherson, 2015. – 624p.
[4] Kremez V.S., Telyma S.V. Substantiation of the schems of the distribution and the parameters of the sorbtion barriers for protection of the ground waters from the contamination by the mathematic modeling methods. Sc.-tech.collection “The problems of the watersupply, waterwasting and hydraulic”, K., KNUBA, iss.27, 2016. – P.214-220.
[5] Kalugin Yu.I., Siryi V.S., Kurganska S.M. Method of the forecasting value of drainage efficiency on the base of using of the numerical schems of water calculation in the soils. Sc.-tech.collection “The prob-lems of watersupply, waterwasting and hydraulic”, K.,KNUBA, iss.5, 2005. – P.24-29.
[6] Lomakin E.O., Mironenko V.O., Shestakov V.M. Numerical modeling of geofiltration. M.,Nedra, 1988.-228p.
[7] Lukner L. Shestakov V.M. Modeling of the ground waters migration. M., Nedra,1986. – 208p.
[8] Mironenko V.M., Rumynin V.G. The problems of the hydroecology, vol.1. Theoretical studying and modeling of the geomigration processes. M., MSU, 1998.-610p.
[9] Oleinik A.Ja., Poljakov V.L. Drainage of the overmoisten lands. K.,Naukova dumka, 1987. – 280c.
[10] Samarskiy O.O. Theory of differences schems. M, Nauka, 1983.-654p.
[11] Telyma S.V. Problems of submerging of the south areas of Ukraine by ground waters. 1. Influence of the Kachovka reservoir, magistral channels and irrigated systems.Sc.-tech.collection “The problems of water-supply, waterwasting and hydraulic”, K., KNUBA, iss. 6, 2006. –P,14-32. .
[12] Solution of the problems groundwaters protection on the numerical models. M., Nedra, 1992. – 240p.
[13] Freed J. Pollution of the ground waters. M., Nedra, 1981.- 304p.
[14] ] Genuchten M.Th., Jury W.A. Progress in unsaturated flow transport modeling. Reviews of Geophys-ics, 1987, vol.25, no.2. –P.135-140.DOI: https://doi.org/10.1029/RG025i002p00135
Please cite as: S.Telyma, O.Voloshkina “About some features of forecasting masstransport processes in saturated - unsaturated media.” USEFUL online journal, vol. 2, no. 4, pp. 01-08, December 2018. DOI: https://doi.org/10.32557/useful-2-4-2018-0001
Comments