Enhanced drag in pipe turbulent flow by an aqueous electrolyte: An electroviscous effect

Drag enhancement is reported for turbulent pipe flow of aqueous electrolyte solutions. No electroviscous effect was obtained with laminar flow. Nor was any unusual pressure drop observed for laminar or turbulent flow of non-electrolyte aqueous solutions such as sugar. An electroviscous theory was ad...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Experimental thermal and fluid science 2009, Vol.33 (2), p.316-321
Hauptverfasser:	Benard, E., Chen, J.J.J., Doherty, A.P., Spedding, P.L.
Format:	Artikel
Sprache:	eng
Schlagworte:	Aqueous salt solution Drag enhancement Electroviscosity Exact sciences and technology Flows in ducts, channels, nozzles, and conduits Fluid dynamics Fundamental areas of phenomenology (including applications) Physics Turbulent pipe flow
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Drag enhancement is reported for turbulent pipe flow of aqueous electrolyte solutions. No electroviscous effect was obtained with laminar flow. Nor was any unusual pressure drop observed for laminar or turbulent flow of non-electrolyte aqueous solutions such as sugar. An electroviscous theory was advanced that predicted the drag enhancement for a 1/1 electrolyte solution. The theory depended on consideration of Debye length.
ISSN:	0894-1777 1879-2286
DOI:	10.1016/j.expthermflusci.2008.09.005