Visualization of two-fluid flows of superfluid helium-4

Autor: Daniel P. Lathrop, Steven W. Van Sciver, Marco La Mantia, Wei Guo
Rok vydání: 2014
Předmět:
Zdroj: Proceedings of the National Academy of Sciences. 111:4653-4658
ISSN: 1091-6490
0027-8424
DOI: 10.1073/pnas.1312546111
Popis: Cryogenic flow visualization techniques have been proved in recent years to be a very powerful experimental method to study superfluid turbulence. Micron-sized solid particles and metastable helium molecules are specifically being used to investigate in detail the dynamics of quantum flows. These studies belong to a well-established, interdisciplinary line of inquiry that focuses on the deeper understanding of turbulence, one of the open problem of modern physics, relevant to many research fields, ranging from fluid mechanics to cosmology. Progress made to date is discussed, to highlight its relevance to a wider scientific community, and future directions are outlined. The latter include, e.g., detailed studies of normal-fluid turbulence, dissipative mechanisms, and unsteady/oscillatory flows.
Databáze: OpenAIRE