The Experts below are selected from a list of 3141 Experts worldwide ranked by ideXlab platform

Sasmito, Agus Pulung - One of the best experts on this subject based on the ideXlab platform.

  • An effective thermal conductivity model for fractal porous media with rough surfaces
    Advances in Geo-Energy Research, 2019
    Co-Authors: Qin Xuan, Zhou Yingfang, Sasmito, Agus Pulung
    Abstract:

    Quantitative evaluation of the effective thermal conductivity of porous media has received wide attention in science and engineering since it is a key Thermophysical Parameter in characterizing heat transfer properties. Based on fractal characters of tortuous capillary tubes and rough surfaces in micro-pores, we proposed a theoretical model of the effective thermal conductivity in porous media with rough surfaces. This model considers the geometrical Parameters of porous media, including porosity, micro-pore fractal dimension, tortuosity fractal dimension, and relative roughness. The calculated normalized effective thermal conductivity was then validated against published experimental data. The results show good agreement between them. The influence of geometrical factors, porosity and relative surface roughness, on the effective thermal conductivity in porous media with rough surfaces are discussed and analyzed extensively.Cited as: Qin, X., Zhou, Y., Sasmito, A.P. An effective thermal conductivity model for fractal porous media with rough surfaces. Advances in Geo-Energy Research, 2019, 3(2): 149-155, doi: 10.26804/ager.2019.02.04

Qin Xuan - One of the best experts on this subject based on the ideXlab platform.

  • An effective thermal conductivity model for fractal porous media with rough surfaces
    Advances in Geo-Energy Research, 2019
    Co-Authors: Qin Xuan, Zhou Yingfang, Sasmito, Agus Pulung
    Abstract:

    Quantitative evaluation of the effective thermal conductivity of porous media has received wide attention in science and engineering since it is a key Thermophysical Parameter in characterizing heat transfer properties. Based on fractal characters of tortuous capillary tubes and rough surfaces in micro-pores, we proposed a theoretical model of the effective thermal conductivity in porous media with rough surfaces. This model considers the geometrical Parameters of porous media, including porosity, micro-pore fractal dimension, tortuosity fractal dimension, and relative roughness. The calculated normalized effective thermal conductivity was then validated against published experimental data. The results show good agreement between them. The influence of geometrical factors, porosity and relative surface roughness, on the effective thermal conductivity in porous media with rough surfaces are discussed and analyzed extensively.Cited as: Qin, X., Zhou, Y., Sasmito, A.P. An effective thermal conductivity model for fractal porous media with rough surfaces. Advances in Geo-Energy Research, 2019, 3(2): 149-155, doi: 10.26804/ager.2019.02.04

Zhou Yingfang - One of the best experts on this subject based on the ideXlab platform.

  • An effective thermal conductivity model for fractal porous media with rough surfaces
    Advances in Geo-Energy Research, 2019
    Co-Authors: Qin Xuan, Zhou Yingfang, Sasmito, Agus Pulung
    Abstract:

    Quantitative evaluation of the effective thermal conductivity of porous media has received wide attention in science and engineering since it is a key Thermophysical Parameter in characterizing heat transfer properties. Based on fractal characters of tortuous capillary tubes and rough surfaces in micro-pores, we proposed a theoretical model of the effective thermal conductivity in porous media with rough surfaces. This model considers the geometrical Parameters of porous media, including porosity, micro-pore fractal dimension, tortuosity fractal dimension, and relative roughness. The calculated normalized effective thermal conductivity was then validated against published experimental data. The results show good agreement between them. The influence of geometrical factors, porosity and relative surface roughness, on the effective thermal conductivity in porous media with rough surfaces are discussed and analyzed extensively.Cited as: Qin, X., Zhou, Y., Sasmito, A.P. An effective thermal conductivity model for fractal porous media with rough surfaces. Advances in Geo-Energy Research, 2019, 3(2): 149-155, doi: 10.26804/ager.2019.02.04

Agus Pulung Sasmito - One of the best experts on this subject based on the ideXlab platform.

  • An effective thermal conductivity model for fractal porous media with rough surfaces
    Ausasia Science and Technology Press, 2019
    Co-Authors: Xuan Qin, Yingfang Zhou, Agus Pulung Sasmito
    Abstract:

    Quantitative evaluation of the effective thermal conductivity of porous media has received wide attention in science and engineering since it is a key Thermophysical Parameter in characterizing heat transfer properties. Based on fractal characters of tortuous capillary tubes and rough surfaces in micro-pores, we proposed a theoretical model of the effective thermal conductivity in porous media with rough surfaces. This model considers the geometrical Parameters of porous media, including porosity, micro-pore fractal dimension, tortuosity fractal dimension, and relative roughness. The calculated normalized effective thermal conductivity was then validated against published experimental data. The results show good agreement between them. The influence of geometrical factors, porosity and relative surface roughness, on the effective thermal conductivity in porous media with rough surfaces are discussed and analyzed extensively

Liliang Wang - One of the best experts on this subject based on the ideXlab platform.

  • determination of the interfacial heat transfer coefficient for a hot aluminium stamping process
    Journal of Materials Processing Technology, 2017
    Co-Authors: Kang Ji, Omer El Fakir, Haomiao Fang, Mohammad M Gharbi, Liliang Wang
    Abstract:

    Abstract The interfacial heat transfer coefficient (IHTC) is an important Thermophysical Parameter in hot stamping processes and must be identified not only to retain the full mechanical strength of formed components, but also to optimise the production rate. In this work, a novel experimental facility was developed and applied to measure the temperature evolutions of the specimens and tools in stamping processes. Simulated temperature evolutions obtained using the FE software PAM-STAMP were then fit to this data. The IHTC values between AA7075 and three different tool materials were characterized at different contact pressures under both dry and lubricated conditions. In addition, a mechanism based IHTC model was developed and validated as a function of contact pressure, tool material and lubricant thickness to predict the IHTC values under different conditions.