CFD analysis and optimization of axial flow fans Renhui Liu, Shubo Xu, Kangwei Sun, Xiaoyu Ju, Weihai Zhang, Wenming Wang, Xiquan Ma, Yuefei Pan, Jianing Li and Guocheng Ren Int. J. Simul. Multidisci. Des. Optim., 15 (2024) 11 Published online: 14 May 2024 DOI: 10.1051/smdo/2024007