Modelling Flows in Pipes and Channels

This Reprint collects a curated selection of high-quality articles published in Fluids that highlight significant developments across the full spectrum of fluid dynamics research and applications. The Special Issue showcases authoritative reviews that synthesize recent theoretical advancements, innovative computational techniques, and cutting-edge experimental insights into the behaviour of gases, liquids, and complex multiphase systems. Contributors include established experts and emerging leaders who critically assess the current state of knowledge on key topics such as turbulence modelling, fluid-structure interactions, multiphase flows, stability and transition phenomena, marine and geophysical fluid mechanics, biofluid dynamics, and data-driven approaches to fluid research. The collection offers readers a comprehensive overview of contemporary fluid mechanics, framed to provide enduring reference value and to stimulate future research directions. This Reprint is intended to serve as a valuable resource for researchers, educators, and practitioners seeking an integrated perspective on the latest conceptual and methodological trends in fluids science.