Sensitivity analysis of Immersed Boundary Method simulations of fluid flow in dense polydisperse random grain packingsChris Knight, Mohd Hazmil Abdol Azis, Catherine O’Sullivan, Berend van Wachem and Daniele DiniEPJ Web Conf., 140 (2017) 15006DOI: https://doi.org/10.1051/epjconf/201714015006