Volume 19, Issue 2 (2019)                   Modares Mechanical Engineering 2019, 19(2): 317-326 | Back to browse issues page

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Gholami H, Kouhikamali R, Sharifi N. Numerical Study of Evaporation in a Vertical Porous Channel By the volume of fluid method in OpenFOAM. Modares Mechanical Engineering. 2019; 19 (2) :317-326
URL: http://journals.modares.ac.ir/article-15-20648-en.html
1- Energy Conversion Department, Mechanical Engineering Faculty, University of Guilan, Rasht, Iran
2- Energy Conversion Department, Mechanical Engineering Faculty, University of Guilan, Rasht, Iran , kouhikamali@guilan.ac.ir
3- Engineering Sciences Department, Engineering Faculty (East Guilan), University of Guilan, Rudsar, Iran
Abstract:   (1848 Views)
In this study, using volume of fluid method in open source software OpenFOAM, the phenomenon of evaporation in the porous medium was analyzed. At the beginning of the solution, the system consists of a water phase and a porous copper environment. In the next steps of numerical simulation and as a result of partial evaporation of water, the vapor phase appears as the second fluid phase. Water and vapor are assumed to be incompressible and incompatible, and the phenomenon of evaporation occurs unevenly. The interface between phases is modeled by the VOF method and the Lee model has been used to mass transfer between two phases of water and vapor. For surface tension between phases, the continuous surface force (CSF) method was considered. The comparison of simulation results with experimental results showed that the combined solver of porous medium evaporation would well estimate the rate of evaporation at different sections of the channel. In addition, the results of the wall temperature indicate that the channel is divided into two zones of heating and evaporation. In the region of heating, the temperature increases linearly with the channel length to reach saturation temperature. After the point of saturation, the wall temperature first remains constant and eventually forms an oscillatory shape, in which locally there are temperature jumps. The evaporated flow rate also increases at high intensity first, but in the end regions of the porous channel, its growth rate is slow.
 
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Received: 2018/05/9 | Accepted: 2018/06/5 | Published: 2019/02/2

References
1. 1- Davarzani H, Smits K, Tolene RM, Illangasekare T. Study of the effect of wind speed on evaporation from soil through integrated modeling of the atmospheric boundary layer and shallow subsurface. Water Re-sources Research. 2014;50(1):661-680. [Link] [DOI:10.1002/2013WR013952]
2. Shokri N, Lehmann P, Or D. Characteristics of evaporation from partially wettable porous media. Water Resources Research. 2009;45(2):W02415. [Link] [DOI:10.1029/2008WR007185]
3. Lehmann P, Assouline S, Or D. Characteristic lengths affecting evaporative drying of porous media. Physi-cal Review E. 2008;77(5):056309. [Link] [DOI:10.1103/PhysRevE.77.056309]
4. Leu JS, Jang JY, Chou WC. Convection heat and mass transfer along a vertical heated plate with film evapo-ration in a non-darcian porous medium. International Journal of Heat and Mass Transfer. 2009;52(23-24):5447-5450. [Link] [DOI:10.1016/j.ijheatmasstransfer.2009.06.033]
5. Smits KM, Sakaki T, Limsuwat A, Illangasekare TH. Thermal conductivity of sands under varying moisture and porosity in drainage - wetting cycles. Vadose Zone Journal. 2010;9(1):172-180. [Link] [DOI:10.2136/vzj2009.0095]
6. Halder A, Datta AK. Surface heat and mass transfer coefficients for multiphase porous media transport models with rapid evaporation. Food and Bioproducts Processing. 2012;90(3):475-490. [Link] [DOI:10.1016/j.fbp.2011.10.005]
7. Lozano AL, Cherblanc F, Cousin B, Bénet JC. Experimental study and modelling of the water phase change kinetics in soils. European Journal of Soil Science. 2008;59(5):939-949. [Link] [DOI:10.1111/j.1365-2389.2008.01050.x]
8. Alomar OR, Mendes MAA, Trimis D, Ray S. Numerical simulation of complete liquid-vapour phase change process inside porous media using smoothing of diffusion coefficient. International Journal of Thermal Sci-ences. 2014;86:408-420. [Link] [DOI:10.1016/j.ijthermalsci.2014.08.003]
9. Shokri Kuehni SMS, Bou-Zeid E, Webb C, Shokri N. Roof cooling by direct evaporation from a porous layer. Energy and Buildings. 2016;127:521-528. [Link] [DOI:10.1016/j.enbuild.2016.06.019]
10. Terzi A, Foudhil W, Harmand S, Ben Jabrallah S. Liquid film evaporation inside an inclined channel: Effect of the presence of a porous layer. International Journal of Thermal Sciences. 2016;109:136-147. [Link] [DOI:10.1016/j.ijthermalsci.2016.05.018]
11. Terzi A, Foudhil W, Harmand S, Ben Jabrallah S. Experimental investigation on the evaporation of a wet porous layer inside a vertical channel with resolution of the heat equation by inverse method. Energy Con-version and Management. 2016;126:158-167. [Link] [DOI:10.1016/j.enconman.2016.07.085]
12. Ray S, Alomar OR. Simulation of liquid-vapour phase change process inside porous media using modified enthalpy formulation. International Journal of Thermal Sciences. 2016;105:123-136. [Link] [DOI:10.1016/j.ijthermalsci.2016.02.014]
13. Lee WH. Computational methods for two-phase flow and particle transport. Singapore: World Scientific Publishing Company; 2013. pp. 241-398. https://doi.org/10.1142/9789814460286_0009 https://doi.org/10.1142/9789814460286_bmatter [Link] [DOI:10.1142/8683]
14. Huang M, Wu L, Chen B. A piecewise linear interface-capturing volume-of-fluid method based on un-structured grids. Numerical Heat Transfer Part B Fundamentals. 2012;61(5):412-437. [Link]
15. Mahady K, Afkhami Sh, Kondic L. A volume of fluid method for simulating fluid/fluid interfaces in con-tact with solid boundaries. Journal of Computational Physics. 2015;294:243-257. [Link] [DOI:10.1016/j.jcp.2015.03.051]
16. Weller HG. A new approach to VOF-based interface capturing methods for incompressible and compress-ible flow [Internet]. London: OpenCFD Ltd; 2008 [cited 2017 september 25]. Available from: https://www.researchgate.net/publication/271831018 [Link]
17. Kaviany M. Principles of heat transfer in porous media. 2nd Edition. New York: Springer; 1999. pp. 427-503. [Link]
18. Wang L, Wang LP, Guo Z, Mi J. Volume-averaged macroscopic equation for fluid flow in moving porous media. International Journal of Heat and Mass Transfer. 2015;82:357-368. [Link] [DOI:10.1016/j.ijheatmasstransfer.2014.11.056]
19. Brackbill JU, Kothe DB, Zemach C. A continuum method for modeling surface tension. Journal of Compu-tational Physics. 1992;100(2):335-354. [Link] [DOI:10.1016/0021-9991(92)90240-Y]
20. Samkhaniani N. Simulation of convective heat transfer of gas-liquid bubble train flow in wet microtube. Heat Transfer Asian Research. 2017;46(4):331-346. [Link] [DOI:10.1002/htj.21215]
21. Weller HG, Tabor G, Jasak H, Fureby C. A tensorial approach to computational continuum mechanics us-ing object-oriented techniques. Computers in Physics. 1998;12(6):620. [Link] [DOI:10.1063/1.168744]
22. Samkhaniani N, Ansari MR. Numerical simulation of bubble condensation using CF-VOF. Progress in Nu-clear Energy. 2016;89:120-131. [Link] [DOI:10.1016/j.pnucene.2016.02.004]
23. Van Leer B. Towards the ultimate conservative difference scheme. II. monotonicity and conservation combined in a second-order scheme. Journal of Computational Physics. 1974;14(4):361-370. [Link] [DOI:10.1016/0021-9991(74)90019-9]
24. Jasak H. Error analysis and estimation for the finite volume method with applications to fluid flows [Dissertation]. London: University of London/Imperial College; 1996. [Link]

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