Inscrição na biblioteca: Guest
THMT-12. Proceedings of the Seventh International Symposium On Turbulence Heat and Mass Transfer
September, 24-27, 2012, Palermo, Italy

DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal


ISBN Print: 978-1-56700-302-4

ISSN: 2377-2816

Behaviour of time-dependent bedforms in closed pipe flow

pages 765-774
DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.830
Get accessGet access

RESUMO

Measurements of time-dependent bedforms produced by the deposition of solid particles from two-phase liquid-solid flows were performed using a novel ultrasonic echo method in a 100-litre, closed-pipe slurry flow loop. Results are presented for the settled bed and sheet-flow layer thicknesses over a range of flow rates. In addition, observations are also presented of path-dependent equilibration, and bi-periodic, possibly cyclical behaviour in plane beds and ripples, respectively. A phase diagram of bedforms in closed pipes is derived in which the thresholds between incipient particle motion and stable and unstable beds are established.

Portal Digital Begell Biblioteca digital da Begell eBooks Diários Referências e Anais Coleções de pesquisa Políticas de preços e assinaturas Begell House Contato Language English 中文 Русский Português German French Spain