The European Journal of Mechanics - B/Fluids publishes papers in all fields of fluid mechanics. Although investigations in well-established areas are within the scope of the journal, recent developments and innovative ideas are particularly welcome. Theoretical, computational and experimental papers are equally welcome. Mathematical methods, be they deterministic or stochastic, analytical or numerical, will be accepted provided they serve to clarify some identifiable problems in fluid mechanics, and provided the significance of results is explained. Similarly, experimental papers must add physical insight in to the understanding of fluid mechanics. Fast Tracks in the European Journal of Mechanics B/Fluids is a venue for short papers with significant original results across the full range of fluid mechanics. Papers submitted as Fast Tracks will receive priority handling by a dedicated editor, to ensure accelerated publication, and will appear in a dedicated EJMB/Fluids section of each journal volume. EJMB/Fluids will strive for the editorial process of two months from submission to publication. Manuscripts submitted to Fast Tracks must maintain the same standard of rigor and quality required of all papers submitted to the Journal; thus, papers in the fast-track process are not intended for the publication of minor incremental or cursory results. The European Journal of Mechanics B/Fluids welcomes extended Comments to published articles, to facilitate evaluation of each paper by the community, to stimulate scientific discussions and possibly highlight paths of future research. It is not the objective of the Comments section to point to minor issues, such as typographical errors. A Comment is meant to clarify (or contend upon) the point of a paper, to facilitate an open discussion on the contents, conclusions, and consequences of a specific article. Benefits to authors We also provide many author benefits, such as free PDFs, a liberal copyright policy, special discounts on Elsevier publications and much more.