Space–Time Computational Flow Analysis (STCFA) was developed in 1990 in the context of flows with moving boundaries and interfaces, which is a wide class of problems that includes fluid–particle interactions, fluid–structure interactions (FSI), and free-surface and multi-fluid flows. It is a computational framework made of unconventional methods, which have evolved over the years as more unconventional methods were introduced to increase its scope and accuracy. It brought first-of-its-kind solutions in many classes of problems, including fluid–particle interactions...