About this Research Topic

Background

The first challenge in Fluid Dynamics is "Flows Across the Scales”.

Fluid dynamics is often characterized by problems that span a wide range of length- and time-scales. Very often this hierarchy of scales leads to what is called “emerging complexity”, in the form of unexpected macroscopic behaviors deriving from simple microscopic interactions. Additionally, these microscopic scales change and reorganize as a consequence of the macroscopic flow. This complex micro-macro coupling is present all the way from the turbulent flow of single-phase Newtonian fluids to the rheological flow of dense stabilized emulsions. Are there universalities in these different systems? Is it possible to develop a comprehensive description that encompassed the effect of the micro-scales on the macro-scales and vice-versa? How to model this type of system numerically?

The Specialty Chief Editor would like to invite critical, ambitious, and courageous contributions, covering theoretical, conceptual, experimental, or computational research, that can provide new insights and stimulate a constructive debate around the following open questions:

- the role of small and large scales in turbulence

- multiphase flows and turbulence

- from the molecular scale to continuum flow problem

- the rheology and morphology of dense emulsion

- the role of structures in turbulent flows and their coupling with macroscopic flow statistics

The Research Topic solicits contributions from the Editorial Board members of the Fluid Dynamics section.
-Article types: Brief Research Report, Original Research, Review, Mini Review, Perspective…

The Specialty Chief Editors of Frontiers in Physics launch a new series of Research Topics to highlight current challenges across the field of Physics. Other titles in the series are:
Editor's Challenge in Radiation Detectors and Imaging: Emerging Technologies
Editor's Challenge in Social Physics: Misinformation and Cooperation
Editor's Challenge in Social Physics: Higher-Order Interactions
Editor's Challenge in Atomic and Molecular Physics: Applications and Advances in Fundamental Physics
Editor's Challenge in Interdisciplinary Physics: What is Interdisciplinary Physics?
Editor's Challenge in Quantum Engineering and Technology: Economic Impact and Perspectives of Quantum Technologies
Editor’s Challenge in Soft Matter Physics: Where Is Soft Matter Physics Going?
Editor's Challenge in Optics and Photonics: Advancing Electronics with Photonics
Editor’s Challenge in High Energy and Astroparticle Physics: Is The W Mass Anomaly Real?
Editor’s Challenge in Low-Temperature Plasma Physics: Atmospheric Pressure Nonequilibrium Plasma

Keywords: fluid dynamics, flow, multiphase flow, turbulence, continuum flow problem

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