A combined TLBM–IBM–DEM scheme for simulating isothermal particulate flow in fluid. (December 2015)

• Record Type: Journal Article
• Authors: Zhang, Hao; Yu, Aibing; Zhong, Wenqi; Tan, Yuanqiang
• Is Part Of: International journal of heat and mass transfer. Volume 91(2015:Dec.)
• Page Start: 178
• Page End: 189
• Publication Date: 2015-12
• Subjects: Thermal Lattice Boltzmann Method -- Immersed Boundary Method -- Discrete Element Method -- Particulate flow -- Heat transfer; Heat -- Transmission -- Periodicals; Mass transfer -- Periodicals; Chaleur -- Transmission -- Périodiques; Transfert de masse -- Périodiques; Electronic journals; 621.4022
• DOI: 10.1016/j.ijheatmasstransfer.2015.07.119
• Languages: English
• ISSNs: 0017-9310

Abstract

Highlights: A coupling scheme was proposed to solve thermal interaction problems. No artificial parameters are required in the proposed scheme. The heat buoyancy could influence on averaged particle settling velocities. The discrepancy of temperature restrains interaction between fluid and particles. Abstract: A combined Thermal Lattice Boltzmann Method (TLBM) – Immersed Boundary Method (IBM) – Discrete Element Method (DEM) scheme was proposed to simulate fluid–particle multiphase flows with heat transfer. The coupling scheme could be regarded as a natural next step of our recent work (Zhang et al., 2014). Here, we enabled an additional function to treat heat transfer problems based on the original LBM–IBM–DEM scheme without introducing any artificial parameters. Firstly, sedimentation of one and two isothermal particles in fluid was numerically investigated, respectively. The feature of instantaneous temperature distribution was captured. The effect of thermal buoyancy on the particle behavior was discussed. Obtained numerical results showed good agreements with previous studies. Then, another two cases involving a large number of isothermal particles were further implemented to demonstrate the capability of current coupling scheme. The numerical results revealed that the TLBM–IBM–DEM is a promising scheme for the solution of complex fluid–particle interaction problems with heat transfer.