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

Privacy PolicyCookie Policy