Full Eulerian lattice Boltzmann model for conjugate heat transfer

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
Yang HuXiaodong Niu

Abstract

In this paper a full Eulerian lattice Boltzmann model is proposed for conjugate heat transfer. A unified governing equation with a source term for the temperature field is derived. By introducing the source term, we prove that the continuity of temperature and its normal flux at the interface is satisfied automatically. The curved interface is assumed to be zigzag lines. All physical quantities are recorded and updated on a Cartesian grid. As a result, any complicated treatment near the interface is avoided, which makes the proposed model suitable to simulate the conjugate heat transfer with complex interfaces efficiently. The present conjugate interface treatment is validated by several steady and unsteady numerical tests, including pure heat conduction, forced convection, and natural convection problems. Both flat and curved interfaces are also involved. The obtained results show good agreement with the analytical and/or finite volume results.

References

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May 16, 2014·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Like LiJames F Klausner
Mar 15, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Hamid Karani, Christian Huber
Apr 15, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Li ChenWen-Quan Tao
Apr 15, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Yang HuXiaodong Niu
Apr 15, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Guigao LeJunfeng Zhang

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