title: Evidences of turbulent mixing in multi-pumping flow systems.
abstract: Multi-pumping flow systems exploit pulsed flows delivered by solenoid pumps. Their improved performance rely on the enhanced radial mass transport inherent to the pulsed flow, which is a consequence of the establishment of vortices thus a tendency towards turbulent mixing. This paper presents several evidences of turbulent mixing in relation to pulsed flows, such as recorded peak shape, establishment of fluidized beds, exploitation of flow reversal, implementation of relatively slow chemical reactions and/or heating of the reaction medium. In addition, Reynolds number associated with the GO period of a pulsed flow is estimated and photographic images of dispersing samples flowing under laminar regime and pulsed flow conditions are presented.
authors.affiliation: Centro de Energia Nuclear na Agricultura, Universidade de São Paulo, P.O. Box 96, Piracicaba 13400-970, Brazil.
authors.forename: Paula R
authors.initials: PR
authors.lastname: Fortes
authors.forename: Mario A
authors.initials: MA
authors.lastname: Feres
authors.forename: Milton K
authors.initials: MK
authors.lastname: Sasaki
authors.forename: Evandro R
authors.initials: ER
authors.lastname: Alves
authors.forename: Elias A G
authors.initials: EA
authors.lastname: Zagatto
authors.forename: João A V
authors.initials: JA
authors.lastname: Prior
authors.forename: João L M
authors.initials: JL
authors.lastname: Santos
authors.forename: José L F C
authors.initials: JL
authors.lastname: Lima