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Heat Transfer Enhancement of Cylindrical Heat Pipes Using Lattice Boltzmann Method

Kods Grissa 1, Zied Lataoui 1, Abdelmajid Jemni 1, Kods Grissa 2, Adel Benselama 2, and Yves Bertin 2
1. Laboratory of Thermal and Energetic Systems Studies (LESTE) at the National School of Engineering of Monastir, University of Monastir, Tunisia
2. Institut Pprime, CNRS - ENSMA - Université de Poitiers, Département Fluides, France

Abstract—A pseudo three dimensional numerical analysis is presented for simulation of cylindrical heat pipe using the Lattice Boltzmann method. The analysis includes the heat conduction in the wall and liquid-wick regions as well as the vapor region. Comparisons between the present model and previous numerical results showed very good agreement. The estimations of the liquid and vapor velocity profiles and temperature distributions are also presented and discussed. It is shown that the vapor flow field remains nearly symmetrical about the heat pipe centerline. Numerical results under different working conditions are presented, which provide guidance for the heat pipe design.
Index Terms—heat pipe, heat flux, lattice Boltzmann method, heat transfer

Cite: Kods Grissa, Zied Lataoui, Abdelmajid Jemni, Kods Grissa, Adel Benselama, and Yves Bertin, "Heat Transfer Enhancement of Cylindrical Heat Pipes Using Lattice Boltzmann Method," International Journal of Mechanical Engineering and Robotics Research, Vol. 6, No. 2, pp. 82-87, March 2017. DOI: 10.18178/ijmerr.6.2.82-87