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García-Ros G.
Alhama I.
Cánovas
M.



Author(s) and WSEAS

García-Ros G.
Alhama I.
Cánovas
M.


WSEAS Transactions on Heat and Mass Transfer


Print ISSN: 1790-5044
E-ISSN: 2224-3461

Volume 12, 2017

Notice: As of 2014 and for the forthcoming years, the publication frequency/periodicity of WSEAS Journals is adapted to the 'continuously updated' model. What this means is that instead of being separated into issues, new papers will be added on a continuous basis, allowing a more regular flow and shorter publication times. The papers will appear in reverse order, therefore the most recent one will be on top.



On the Characterization of Non-Linear Diffusion Equations. An Application in Soil Mechanics

AUTHORS: García-Ros G., Alhama I., Cánovas, M.

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ABSTRACT: The search of dimensionless groups in engineering problems ruled by partial differential equations presents many problems whereby it is an untreated topic in the scientific literature. The main difficulties arise in the suitable choice of the reference quantities needed to define the dimensionless variables which must also be normalized, i.e., extended to the range of values (0,1). After setting the steps for a correct nondimensionalization protocol in this kind of problems, its application is illustrated by studying the soil consolidation problem, a process in which the constitutive dependences between the physical parameters and the dependent variables are strongly non-linear. Results are verified by numerical simulations.

KEYWORDS: Nondimensionalization, dimensionless groups, soil consolidation, non-linear

REFERENCES:

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[2] Gibbings, J.C., On dimensional analysis, J. Phys A: Math. Gen, 13, pp 75-89, 1980

[3] Holzbecher, E., Modelling Density-Driven Flow in Porous Media, Springer, Berlin, Germany, 1998

[4] Reynolds, O., An experimental investigation of the circumstances which determine whether the motion of water shall be direct or sinuous, and of the law of resistance in parallel channels, Proceedings of the royal society of London, 35 (224-226), 84-99, 1883

[5] Madrid, C.N. and Alhama, F., Discriminated dimensional analysis of the energy equation: application to laminar forced convection along a flat plate, International Journal of Thermal Sciences, 44 (4), 333-341, 2005

[6] Madrid, C.N. and Alhama, F., Study of the laminar natural convection problem along an isothermal vertical plate based on discriminated dimensional analysis, Chemical Engineering Communications, 195 (12), 1524-1537, 2008 0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1 0 0,5 1 1,5 2 2,5 3 3,5 4 4,5 5 Average degree of pressure dissipation time (years) Set 1 Set 2 Set 3 Set 4 Set 5 Set 6 Set 7 Set 8 0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1 0 0,25 0,5 0,75 1 1,25 1,5 1,75 2 2,25 2,5 Average degree of pressure dissipation dimensionless time Sets 1-5 Set 6 Set 7 Set 8

[7] Manteca, I. A., Alcaraz, M., Trigueros, E. and Alhama, F., Dimensionless characterization of salt intrusion benchmark scenarios in anisotropic media, Applied Mathematics and Computation, 247, 1173-1182, 2014

[8] Cánovas, M., Alhama, I., Trigueros, E. and Alhama, F., Numerical simulation of NusseltRayleigh correlation in Bénard cells. A solution based on the network simulation method, International Journal of Numerical Methods for Heat & Fluid Flow, 25 (5), 986-997, 2015

[9] Pérez, J.S., Conesa, M. and Alhama, I., Solving ordinary differential equations by electrical analogy: a multidisciplinary teaching tool, European Journal of Physics, 37(6), 065703, 2016

[10] Alhama, F. and Madrid, C.N., Análisis dimensional discriminado en mecánica de fluidos y transferencia de calor, Ed. Reverté, Barcelona, 2012

[11] González-Fernández, C.F., Applications of the network simulation method to transport processes, in Network Simulation Method, Ed. J. Horno, Research Signpost, Trivandrum, India, 2002

[12] Gibson, R.E., England, G.L. and Hussey, M.J.L., The Theory of One Dimensional Consolidation of Saturated Clays, Géotechnique, 17, 261-273, 1967

[13] Butterfield, R., A Natural Compression Law for Soils (An Advance on e-log p’), Géotechnique, 29 (4), 469-480, 1979

[14] Juárez-Badillo, E., General Consolidation Theory for Clays, Soil Mechanics Series, Report No. 8, Graduate School of Engineering, National University of Mexico, 1983.

WSEAS Transactions on Heat and Mass Transfer, ISSN / E-ISSN: 1790-5044 / 2224-3461, Volume 12, 2017, Art. #9, pp. 72-77


Copyright © 2017 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution License 4.0

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