Heat Transfer Enhancement of Cylindrical Heat Pipes Using Lattice Boltzmann Method

Zied Lataoui (1) , Abdelmajid Jemni (1) , Kods Grissa (2) , Adel Benselama (3) , Yves Bertin (3)

1 LESTE / ENIM - Laboratoire d'Etudes des Systèmes Thermiques et Energétiques [Monastir]
2 PPrime [Poitiers] - Institut Pprime [UPR 3346]
3 COST - Convection, Optimisation, Systèmes Thermiques [Institut Pprime]

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.

Mots clés: heat pipe; heat flux; lattice Boltzmann method; heat transfer

Domaines: Mécanique des fluides [physics.class-ph]; Matériaux et structures en mécanique [physics.class-ph]; Acoustique [physics.class-ph]; Automatique / Robotique; Electromagnétisme; Milieux fluides et réactifs; Energie électrique; Thermique [physics.class-ph]; Vibrations [physics.class-ph]; Physique mathématique [math-ph]; Physique Quantique [quant-ph]; Acoustique [physics.class-ph]; Biomécanique [physics.med-ph]; Matériaux; Polymères

Zied Lataoui, Abdelmajid Jemni, Kods Grissa, Adel Benselama, Yves Bertin. Heat Transfer Enhancement of Cylindrical Heat Pipes Using Lattice Boltzmann Method. International Journal of Mechanical Engineering and Robotics Research, 2017, pp.82-87. ⟨10.18178/ijmerr.6.2.82-87⟩. ⟨hal-02414473⟩