This paper introduces a numerical strategy to estimate the thermophysical properties of a saturated porous medium (volumetric heat capacity , thermal conductivity λs, and porosity ), where a phase change problem (liquid/vapor) appears due to strong heating. The estimation of these properties is done by inverse problem knowing the heating curves at selected points of the medium. To solve the inverse problem, we use both the damped Gauss Newton (DGN) and the Levenberg Marquardt methods to deal with high nonlinearity of the system and to tackle the problem with large residuals. We use the method of lines where time and space discretizations are considered separately. Special attention has been paid to the choice of the regularization parameter of the apparent heat capacity (AHC) method which may prevent the convergence of the inverse problem.
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September 2016
This article was originally published in
Journal of Heat Transfer
Research-Article
Identification of the Thermophysical Properties of the Soil by Inverse Problem
Mohamad Muhieddine
Mohamad Muhieddine
Assistant Professor
Lebanese University,
Nabatieh Campus Section V (Lb),
Nabatieh, Lebanon
e-mail: mohamad.muhieddine@liu.edu.lb
Lebanese University,
Nabatieh Campus Section V (Lb),
Nabatieh, Lebanon
e-mail: mohamad.muhieddine@liu.edu.lb
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Salwa Mansour
Édouard Canot
Mohamad Muhieddine
Assistant Professor
Lebanese University,
Nabatieh Campus Section V (Lb),
Nabatieh, Lebanon
e-mail: mohamad.muhieddine@liu.edu.lb
Lebanese University,
Nabatieh Campus Section V (Lb),
Nabatieh, Lebanon
e-mail: mohamad.muhieddine@liu.edu.lb
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received September 5, 2014; final manuscript received October 21, 2015; published online June 1, 2016. Assoc. Editor: Dennis A. Siginer.
J. Heat Transfer. Sep 2016, 138(9): 091010 (8 pages)
Published Online: June 1, 2016
Article history
Received:
September 5, 2014
Revised:
October 21, 2015
Citation
Mansour, S., Canot, É., and Muhieddine, M. (June 1, 2016). "Identification of the Thermophysical Properties of the Soil by Inverse Problem." ASME. J. Heat Transfer. September 2016; 138(9): 091010. https://doi.org/10.1115/1.4032947
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