Jesús María Blanco, researcher at the UPVH / EHU and Tecnalia and Coordinator of the RENOVABLES Project, will act as guest editor in an upcoming special issue of the Applied Sciences Magazine. The issue will be on ADVANCES IN FLUID MECHANICS. The deadline for submission of manuscripts is October 31, 2021.
The comprehensive use of fluid mechanics has always been of key relevance for the development of human beings though numerous applications from the classical field of engineering, with its different sub-disciplines, to physics or even to medicine by modelling simple or complex flows, including Newtonian and non-Newtonian fluids. The progressive implementation of new techniques as computational fluid dynamics (CFD) has experienced a great increase over the last few decades as its use has become more feasible for most experts worldwide.
Generally speaking, the goal of turbulence modeling is to reproduce as accurately as possible these flow physics with a reasonable computational effort. In some cases, turbulence is modeled by the Reynolds Averaged Navier–Stokes (RANS) methods, where the ensemble averaging tends to remove the unsteady part. RANS models generally perform satisfactorily in less complex flows, whereas in more complex scenarios may result inappropriate.
A completely different approach is represented by the so-called large eddy simulation (LES) method, where the large-scale energy-containing eddies are solved directly, while the effects of smaller-scale eddies are simply modeled, resulting in models which are more expensive than RANS models in terms of computational cost.