Conductivity of granular media with stagnant interstitial fluids via thermal particle dynamics simulation
In this paper, a numerical technique––the thermal particle dynamics method (TPD)––is extended to study heat conduction in granular media in the presence of stagnant interstitial fluids. The method, which generates a multi-particle simulation by explicitly modeling many two-particle interactions, all...
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| Veröffentlicht in: | International journal of heat and mass transfer 2002-11, Vol.45 (24), p.4847-4856 |
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| container_end_page | 4856 |
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| container_issue | 24 |
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| container_title | International journal of heat and mass transfer |
| container_volume | 45 |
| creator | Vargas, Watson L McCarthy, J.J |
| description | In this paper, a numerical technique––the thermal particle dynamics method (TPD)––is extended to study heat conduction in granular media in the presence of stagnant interstitial fluids. The method, which generates a multi-particle simulation by explicitly modeling many two-particle interactions, allows bed heterogeneities to be directly included and dynamic temperature distributions to be obtained at the particle-level. Comparison with experimental data shows that TPD yields quantitatively accurate values of the effective thermal conductivity without introducing new adjustable parameters for a wide range of stagnant interstitial media. The model not only sheds light on fundamental issues in heat conduction in particulate materials, but also provides a valuable test bed for existing continuous theories. |
| doi_str_mv | 10.1016/S0017-9310(02)00175-8 |
| format | Article |
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| source | Elsevier ScienceDirect Journals Complete - AutoHoldings |
| subjects | Analytical and numerical techniques Dynamic simulation Exact sciences and technology Fundamental areas of phenomenology (including applications) Granular material Heat conduction Heat transfer Microstructure Physics |
| title | Conductivity of granular media with stagnant interstitial fluids via thermal particle dynamics simulation |
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