Aims: Fluids (ISSN 2311-5521) is an open-access journal, which provides an advanced forum for studies on all aspects of fluid and its applications, including mathematical modeling, numerical simulation, and experiments. Our aim is to publish state-of-the-art papers, including original research papers, reviews, case reports, as well as technical notes and meeting reports. There is no restriction on the length of the papers. Scope: Biofluid mechanics Chemically reacting fluids and combustion Computational fluid dynamics (CFD) Experimental fluid mechanics Flow through porous media Fluid–solid interactions (FSI) Geophysical fluid dynamics Granular/suspension flows Heat and mass transfer Hydrodynamics; Magneto-hydrodynamics (MHD) Multiphase flows Nanofluids and microfluids Newtonian and non-Newtonian fluids Polymers Rheology Stability Statistical and kinetic theory of fluids Tribology/lubrication Turbulence