Transport and deposition of neutral particles in magnetohydrodynamic turbulent channel flows at low magnetic Reynolds numbers

dc.contributor.author	Δριτσέλης, Χρήστος Δ.	el
dc.contributor.author	Σαρρής, Ιωάννης Ε.	el
dc.contributor.author	Φείδαρος, Δημήτρης Κ.	el
dc.contributor.author	Βλάχος, Νικόλας Σ.	el
dc.date.accessioned	2015-05-07T20:02:59Z
dc.date.available	2015-05-07T20:02:59Z
dc.date.issued	2015-05-07
dc.identifier.uri	http://hdl.handle.net/11400/9900
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://www.elsevier.com	en
dc.subject	MHD
dc.subject	Turbulent channel flow
dc.subject	Particle transport
dc.subject	Deposition
dc.subject	Μεταφορά σωματιδίων
dc.subject	Εναπόθεση
dc.subject	Τυρβώδους ροής κανάλι
dc.title	Transport and deposition of neutral particles in magnetohydrodynamic turbulent channel flows at low magnetic Reynolds numbers	en
heal.type	journalArticle
heal.classification	Technology
heal.classification	Engineering
heal.classification	Τεχνολογία
heal.classification	Μηχανική
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85133147
heal.classificationURI	http://zbw.eu/stw/descriptor/19795-3
heal.classificationURI	N/A-Τεχνολογία
heal.classificationURI	N/A-Μηχανική
heal.identifier.secondary	doi:10.1016/j.ijheatfluidflow.2011.01.002
heal.language	en
heal.access	free
heal.publicationDate	2011-04
heal.bibliographicCitation	DRITSELIS, C.D., SARRIS, I.E., FIDAROS, D.K. & VLACHOS, N.S. (2011). Transport and deposition of neutral particles in magnetohydrodynamic turbulent channel flows at low magnetic Reynolds numbers. International Journal of Heat and Fluid Flow. [Online] 32 (2). p.365–377. Available from: http://www.sciencedirect.com/[Accessed 01/02/2011]	en
heal.abstract	The effect of Lorentz force on particle transport and deposition is studied by using direct numerical simulation of turbulent channel flow of electrically conducting fluids combined with discrete particle simulation of the trajectories of uncharged, spherical particles. The magnetohydrodynamic equations for fluid flows at low magnetic Reynolds numbers are adopted. The particle motion is determined by the drag, added mass, and pressure gradient forces. Results are obtained for flows with particle ensembles of various densities and diameters in the presence of streamwise, wall-normal or spanwise magnetic fields. It is found that the particle dispersion in the wall-normal and spanwise directions is decreased due to the changes of the underlying fluid turbulence by the Lorentz force, while it is increased in the streamwise direction. The particle accumulation in the near-wall region is diminished in the magnetohydrodynamic flows. In addition, the tendency of small inertia particles to concentrate preferentially in the low-speed streaks near the walls is strengthened with increasing Hartmann number. The particle transport by turbophoretic drift and turbulent diffusion is damped by the magnetic field and, consequently, particle deposition is reduced.	en
heal.publisher	Elsevier	en
heal.journalName	International Journal of Heat and Fluid Flow	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true