Particle Scale Numerical Simulation on Momentum and Heat Transfer of Two Tandem Spheroids: An IB-LBM Study
Year: 2018
Author: Chunhai Ke, Shi Shu, Hao Zhang, Haizhuan Yuan
Advances in Applied Mathematics and Mechanics, Vol. 10 (2018), Iss. 6 : pp. 1497–1526
Abstract
The cold fluid flowing over two hot spheroids placed in a tandem arrangement was numerically studied via a GPU-based immersed boundary-lattice Boltzmann method (IB-LBM) model. The drag coefficient and average Nusselt number of both the two spheroids were obtained with the main influencing factors investigated. To validate the IB-LBM model, several numerical case studies containing one and two spheres were firstly conducted to reach the good agreement with the previously reported data. Then, a number of simulations were further carried out which were designed by changing the particle aspect ratio (1.0≤ $Ar$ ≤4.0) and inter particle distance (1.5≤ $l$ ≤7.0, where $l = L/D$, $D$ stands for the volume-equivalent sphere diameter) as well as the Reynolds number (10 ≤ $Re$ ≤200). Their influence on the momentum and heat transfer characteristics between the solid and fluid phases were fully discussed. Numerical results show that, for all the considered Reynolds numbers and aspect ratios, the individual and total drag coefficients and average Nusselt number increase with the inter particle distance. The inter particle distance has greater influence on the drag coefficient and average Nusselt number of the trailing particle than the leading one. The drag coefficient and average Nusselt number of the trailing particle are far less than the leading one under the same working conditions. The prediction correlations for the drag coefficient and average Nusselt number of both the two spheroids were established with low deviations. At last, the influence of the relative incidence angles between the two tandem spheroids on the momentum and heat transfer was studied. It is shown that the relative incidence angles play significant roles due to the change of the frontal area of the leading spheroid with these angles.
You do not have full access to this article.
Already a Subscriber? Sign in as an individual or via your institution
Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/10.4208/aamm.OA-2018-0005
Advances in Applied Mathematics and Mechanics, Vol. 10 (2018), Iss. 6 : pp. 1497–1526
Published online: 2018-01
AMS Subject Headings: Global Science Press
Copyright: COPYRIGHT: © Global Science Press
Pages: 30
Keywords: Drag coefficient average Nusselt number IB-LBM spheroids inter particle distance relative incidence angle.
Author Details
-
PR-DNS investigation on momentum and heat transfer of two interactive non-spherical particles in a fluid
Miao, Haishan | Zhang, Hao | Wu, Yuhang | Wang, Yang | An, XizhongPowder Technology, Vol. 427 (2023), Iss. P.118791
https://doi.org/10.1016/j.powtec.2023.118791 [Citations: 2] -
Computational study on interaction between rotating non-spherical particles and shear-thinning fluids
Ji, Jingbo | Zhang, Hao | Li, Chao | Guo, Pengyue | An, XizhongPhysics of Fluids, Vol. 36 (2024), Iss. 4
https://doi.org/10.1063/5.0202281 [Citations: 1] -
Combined effects of particle shape, incident angle and porosity on momentum and heat transfer between spheroids and fluids
Miao, Haishan | Zhang, Hao | An, Xizhong | Chen, Jiang | Yu, AibingInternational Journal of Heat and Mass Transfer, Vol. 197 (2022), Iss. P.123341
https://doi.org/10.1016/j.ijheatmasstransfer.2022.123341 [Citations: 4] -
PR-DNS on the momentum and heat transfer of a rotating ellipsoidal particle in a fluid
Zhang, Hao | Zhang, Lixing | An, Xizhong | Yu, AibingPowder Technology, Vol. 373 (2020), Iss. P.152
https://doi.org/10.1016/j.powtec.2020.06.030 [Citations: 16] -
Numerical study on the momentum and heat transfer of porous spheroids under laminar flow
Miao, Haishan | Zhang, Hao | An, Xizhong | Ke, Chunhai | Yu, AibingPowder Technology, Vol. 395 (2022), Iss. P.14
https://doi.org/10.1016/j.powtec.2021.09.045 [Citations: 5] -
Direct numerical simulation of flow past a reactive/inert mixed particle pair
Physics of Fluids, Vol. 35 (2023), Iss. 6
https://doi.org/10.1063/5.0152346 [Citations: 3] -
A review of recent development for the CFD-DEM investigations of non-spherical particles
Ma, Huaqing | Zhou, Lianyong | Liu, Zihan | Chen, Mengyao | Xia, Xiuhao | Zhao, YongzhiPowder Technology, Vol. 412 (2022), Iss. P.117972
https://doi.org/10.1016/j.powtec.2022.117972 [Citations: 95]