Research article

An experimental and analytical study of the effect of cold compression on the thermophysical properties of a granular medium

  • Received: 26 November 2019 Accepted: 10 March 2020 Published: 20 March 2020
  • Based on the previous literature, very few models have described the thermal behavior of granular media or powders as a function of the mechanical stresses to which they are subjected. In recent years, many researchers have been interested in establishing laws that can express the relationship between the apparent thermal conductivity and the mechanical behavior of granular media. The present paper seeks to present a simple model that describes the variation of the apparent thermal conductivity of a granular medium as a function of the mechanical stress. One of the main objectives of this paper is to produce a tool for calculating the thermal conductivity of heterogeneous media, especially that of granular media. For the resolution of the problem, it was decided to use an experimental method recently developed in the laboratory and which is due to be the basis of our calculations. This method is called the hot rod method. It was initially developed to evaluate the damage to a soil subject to superficial heat shock (fires, burns). The results show that for short times and a distance between two measurement points large enough, the 2D transfer can be reduced to a 1D transfer which for long times is hybridized to a hot wire transfer. The modeling of thermal transfers within the environment makes it possible to know the temperature field of soil under the effect of a thermal accident.

    Citation: Mohamed Filali, Kacim Hadjadj, Lakhdar Hachani, Ahmed Mechraoui, Mohamed El-Amine Slimani, Mounir Sakmeche. An experimental and analytical study of the effect of cold compression on the thermophysical properties of a granular medium[J]. AIMS Materials Science, 2020, 7(1): 116-129. doi: 10.3934/matersci.2020.1.116

    Related Papers:

  • Based on the previous literature, very few models have described the thermal behavior of granular media or powders as a function of the mechanical stresses to which they are subjected. In recent years, many researchers have been interested in establishing laws that can express the relationship between the apparent thermal conductivity and the mechanical behavior of granular media. The present paper seeks to present a simple model that describes the variation of the apparent thermal conductivity of a granular medium as a function of the mechanical stress. One of the main objectives of this paper is to produce a tool for calculating the thermal conductivity of heterogeneous media, especially that of granular media. For the resolution of the problem, it was decided to use an experimental method recently developed in the laboratory and which is due to be the basis of our calculations. This method is called the hot rod method. It was initially developed to evaluate the damage to a soil subject to superficial heat shock (fires, burns). The results show that for short times and a distance between two measurement points large enough, the 2D transfer can be reduced to a 1D transfer which for long times is hybridized to a hot wire transfer. The modeling of thermal transfers within the environment makes it possible to know the temperature field of soil under the effect of a thermal accident.


    加载中


    [1] Al-Arkawazi S, Marie C, Benhabib K, et al. (2017) Modeling the hydrodynamic forces between fluid–granular medium by coupling DEM–CFD. Chem Eng Res Des 117: 439–447. doi: 10.1016/j.cherd.2016.11.002
    [2] Deltour P, Barrat JL (1997) Quantitative study of a freely cooling granular medium. J Phys I 7: 137–151.
    [3] Dominguez A, Bories S, Prat M (2000) Gas cluster growth by solute diffusion in porous media. Experiments and automaton simulation on pore network. Int J Multiphas Flow 26: 1951–1979.
    [4] Delenne JY, El Youssoufi MS, Cherblanc F, et al. (2004) Mechanical behaviour and failure of cohesive granular materials. Int J Numer Anal Met 28: 1577–1594. doi: 10.1002/nag.401
    [5] Ketterhagen WR, Curtis JS, Wassgren CR, et al. (2007) Granular segregation in discharging cylindrical hoppers: a discrete element and experimental study. Chem Eng Sci 62: 6423–6439. doi: 10.1016/j.ces.2007.07.052
    [6] Brosh T, Kalman H, Levy A (2011) DEM simulation of particle attrition in dilute-phase pneumatic conveying. Granul Matter 13: 175–181. doi: 10.1007/s10035-010-0201-z
    [7] Lor WB, Chu HS (2000) Effect of interface thermal resistance on heat transfer in a composite medium using the thermal wave model. Int J Heat Mass Tran 43: 653–663. doi: 10.1016/S0017-9310(99)00178-7
    [8] Vargas WL, McCarthy JJ (2000) Unsteady heat conduction in granular materials. MRS Proceedings 627: BB3.9.
    [9] Rickelt S, Sudbrock F, Wirtz S, et al. (2003) Coupled DEM/CFD simulation of heat transfer in a generic grate system agitated by bars. Powder Technol 249: 360–372.
    [10] Al-Qureshi HA, Galiotto A, Klein AN (2005) On the mechanics of cold die compaction for powder metallurgy. J Mater Process Tech 166: 135–143. doi: 10.1016/j.jmatprotec.2004.08.009
    [11] Narayan P, Hancock BC (2005) The influence of particle size on the surface roughness of pharmaceutical excipient compacts. Mat Sci Eng A-Struct 407: 226–233. doi: 10.1016/j.msea.2005.06.060
    [12] Tsory T, Ben-Jacob N, Brosh T, et al. (2013) Thermal DEM–CFD modeling and simulation of heat transfer through packed bed. Powder Technol 244: 52–60. doi: 10.1016/j.powtec.2013.04.013
    [13] Fischer KM, McNutt MK, Shure L (1986) Thermal and mechanical constraints on the lithosphere beneath the Marquesas swell. Nature 322: 733–736. doi: 10.1038/322733a0
    [14] Medebber MA, Aissa A, Slimani MEA, et al. (2019) Numerical study of natural convection in vertical cylindrical annular enclosure filled with Cu-water nanofluid under magnetic fields. Defect Diffus Forum 392: 123–137. doi: 10.4028/www.scientific.net/DDF.392.123
    [15] De Ryck A, Condotta R, Lubert M (2003) Interrupted shear of granular media. Eur Phys J E 11: 159–167. doi: 10.1140/epje/i2002-10153-6
    [16] Nakayama A, Kuwahara F (1999) A macroscopic turbulence model for flow in a porous medium. J Fluids Eng 121: 427–433. doi: 10.1115/1.2822227
    [17] Elajrami M, Slimani MEA (2019) Crack growth study under thermo-mechanical loads: parametric analysis for 2024 T3 aluminum alloy. Frattura Integr Strutt 13: 231–241. doi: 10.3221/IGF-ESIS.50.19
    [18] Ashby MF, Cebon D (1993) Materials selection in mechanical design. J Phys IV 3: 1–9.
  • Reader Comments
  • © 2020 the Author(s), licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0)
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Metrics

Article views(3205) PDF downloads(336) Cited by(3)

Article outline

Figures and Tables

Figures(12)  /  Tables(3)

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return

Catalog