Heterogeneous Drag Reduction Concepts and Consequences

Autor:	Klaus Hoyer, Albert Gyr
Rok vydání:	1998
Předmět:	Condensed Matter::Soft Condensed Matter Physics::Fluid Dynamics Drag coefficient Materials science Classical mechanics Parasitic drag Turbulence Agglomerate Drag Mechanical Engineering Elastomer Viscoelasticity Pipe flow
Zdroj:	Journal of Fluids Engineering. 120:818-823
ISSN:	1528-901X 0098-2202
DOI:	10.1115/1.2820743
Popis:	This paper deals with the nature of the heterogeneous drag reduction which occurs in turbulent pipe flows when a concentrated polymer solution is injected into the pipe center. According to earlier concepts, the achieved drag reduction is due to a direct, large-scale interaction of the viscoelastic polymer thread with the turbulent flow field. The authors prove that the heterogeneous drag reduction originates exclusively from agglomerates of dissolved polymer molecules present in the flow.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f1e7423f47d22ba20b0b975a12d2ef37 https://doi.org/10.1115/1.2820743 Zobrazit plný text záznamu