Commenced in January 2007
Paper Count: 30840
Numerical and Experimental Study of Flow from a Leaking Buried Pipe in an Unsaturated Porous Media
Abstract:Considering the numerous applications of the study of the flow due to leakage in a buried pipe in unsaturated porous media, finding a proper model to explain the influence of the effective factors is of great importance.There are various important factors involved in this type of flow such as: pipe leakage size and location, burial depth, the degree of the saturation of the surrounding porous medium, characteristics of the porous medium, fluid type and pressure of the upstream.In this study, the flow through unsaturated porous media due to leakage of a buried pipe for up and down leakage location is studied experimentally and numerically and their results are compared. Study results show that Darcy equation together with BCM method (for calculating the relative permeability) have suitable ability for predicting the flow due to leakage of buried pipes in unsaturated porous media.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1084602Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2029
 Philip, J.R., 1968. Steady infiltration from buried point sources and spherical cavities. Water Resour. Res. 4, 1039-1047.
 Schwartzman, M., Zur, B., 1986. Emitter spacing and geometry of wetted soil volume. J. Irrig. Drain. Eng. 112 (3), 242-253.
 Ben-Asher, J., Phene, C.J., 1996. Surface and subsurface drip irrigation: an analysis by a numerical model. Rep., Jacob Blaustein Institute for Desert Research, B.G University of Negev.
 Moncef, H., Hedi, D., Jelloul, B., Mohamed, M., 2002. Approach for predicting the wetting front depth beneath a surface point source: theory and numerical aspect. Irrig. Drain. 51, 347-360.
 Lazarovitch, N.,Warrick, A.W., Furman, A., S╦çimu╦Ü nek, J., 2007. Subsurface water distribution from drip irrigation described by moment analyses. Vadose Zone J. 6 (1), 116-123.
 Provenzano, G., 2007. Using HYDRUS-2D simulation model to evaluate wetted soil volume in subsurface drip irrigation systems. J. Irrig. Drain. Eng. 133 (4),342-349.
 Patel, N., Rajput, T.B.S., 2008. Dynamics and modeling of soil water under subsurface drip irrigated onion. Agricultural Water management. 95, 1335-1349.
 Siyal, A.A., Sk T.H., 2009. Measured and simulated soil wetting patterns under porous clay pipe sub-surface irrigation. Agricultural Water Management. 96, 893-904.
 C. NGO PhD thesis, 2006. "bouyancy-induced heat and mass transport in a porous medium near a buried pipe". PhD Thesis, University of Higher Education, Oklahoma
 Chen J, Hopmans JW, Grismer ME (1999) Parameter estimation of twofluid capillary pressure-saturation and permeability functions. Adv Water Resour 22(5):479-493.