Paper by Nguyen et al. is published in Advanced Powder Technology.
Resolved CFD–DEM coupling simulation using Volume Penalisation method,
Giang Nguyen-Thanh, Ei L. Chan, Takuya Tsuji, Toshitsugu Tanaka, Kimiaki Washino,
Advanced Powder Technology, 32 (1), 225-236 (2021).