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Numerical model for the determination of the soil retention curve from global characteristics obtained via a centrifuge

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Abstract
A novel centrifuge set-up for the study of unsaturated flow characteri\-stics in porous media is examined. In this set-up, simple boundary conditions can be used, but a free moving boundary between unsaturated-saturated flow arises. A precise and numerically efficient approximation is presented for the mathematical model based on Richards' nonlinear and degenerate equation expressed in terms of effective saturation using the Van Genuchten-Mualem approach for the soil parameters in the unsaturated zone. Sensitivity of the measurable quantities (rotational moment, center of gravity and time period to achieve quasi steady state) on the soil parameters is investigated in several numerical experiments. They show that the set-up is suitable for the determination of the soil parameters via the solution of an inverse problem in an iterative way.

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Chicago
Malengier, Benny, Jozef Kačur, and Pavol Kišoň. 2012. “Numerical Model for the Determination of the Soil Retention Curve from Global Characteristics Obtained via a Centrifuge.” In Materials with Complex Behaviour II : Properties, Non-classical Materials and New Technologies, ed. Andreas Öchsner, Lucas FM da Silva, and Holm Altenbach, 16:199–212. Berlin, Germany: Springer.
APA
Malengier, Benny, Kačur, J., & Kišoň, P. (2012). Numerical model for the determination of the soil retention curve from global characteristics obtained via a centrifuge. In Andreas Öchsner, L. F. da Silva, & H. Altenbach (Eds.), Materials with complex behaviour II : properties, non-classical materials and new technologies (Vol. 16, pp. 199–212). Berlin, Germany: Springer.
Vancouver
1.
Malengier B, Kačur J, Kišoň P. Numerical model for the determination of the soil retention curve from global characteristics obtained via a centrifuge. In: Öchsner A, da Silva LF, Altenbach H, editors. Materials with complex behaviour II : properties, non-classical materials and new technologies. Berlin, Germany: Springer; 2012. p. 199–212.
MLA
Malengier, Benny, Jozef Kačur, and Pavol Kišoň. “Numerical Model for the Determination of the Soil Retention Curve from Global Characteristics Obtained via a Centrifuge.” Materials with Complex Behaviour II : Properties, Non-classical Materials and New Technologies. Ed. Andreas Öchsner, Lucas FM da Silva, & Holm Altenbach. Vol. 16. Berlin, Germany: Springer, 2012. 199–212. Print.
@incollection{1985370,
  abstract     = {A novel centrifuge set-up for the study of unsaturated flow characteri{\textbackslash}-stics in porous media is examined. In this set-up, simple boundary conditions can be used, but a free moving boundary between unsaturated-saturated flow arises.
A precise and numerically efficient approximation is presented for the mathematical model based on Richards' nonlinear and degenerate equation expressed in terms of effective saturation using the Van Genuchten-Mualem approach for the soil parameters in the unsaturated zone. Sensitivity of the measurable quantities (rotational moment, center of gravity and time period to achieve quasi steady state) on the soil parameters is investigated in several numerical experiments. They show that the set-up is suitable for the determination of the soil parameters via the solution of an inverse problem in an iterative way.},
  author       = {Malengier, Benny and Ka\v{c}ur, Jozef and Ki\v{s}o\v{n}, Pavol},
  booktitle    = {Materials with complex behaviour II : properties, non-classical materials and new technologies},
  editor       = {{\"O}chsner, Andreas and da Silva, Lucas FM and Altenbach, Holm},
  isbn         = {9783642226991},
  issn         = {1869-8433},
  language     = {eng},
  pages        = {199--212},
  publisher    = {Springer},
  series       = {Advanced Structured Materials},
  title        = {Numerical model for the determination of the soil retention curve from global characteristics obtained via a centrifuge},
  url          = {http://dx.doi.org/10.1007/978-3-642-22700-4\_11},
  volume       = {16},
  year         = {2012},
}

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