Record details

Title
    Instabilities and patterns in sedimenting complex polydisperse mixtures: relevance for geological sediments
Author
    Hladil, Jindřich
    Růžička, Marek
Conference
    CHISA 2006. International Congress of Chemical and Process Engineering (17. : 27.08.2006-31.08.2006 : Prague, Česká republika)
Language
    anglicky
Publication type
    abstrakt
Source title - monograph
    CHISA 2006 : 17th international congress of chemical and process engineering : 27-31 August 2006, Praha, Czech Republic. Summaries 3, Hydrodynamic Processes
Pages
    s. 851-851
Notes
    Projekt: IAA3013406, GA AV ČR
    Projekt: KJB300130613, GA AV ČR, CZ
    Projekt: KJB307020602, GA AV ČR
    Překlad názvu: Nestálosti a vzory ve složitých polydisperzních směsích při jejich usazování: významnost pro geologické sedimenty
    Rozsah: 1 s.
    Výzkumný záměr: CEZ:AV0Z30130516
    Výzkumný záměr: CEZ:AV0Z40720504
Subject category
    experimental sedimentology
    hydrodynamics
    internal stress
    pattern formations
    polydisperse mixtures
Keyword
    Complex
    Geological
    Instabilities
    Mixtures
    Patterns
    Polydisperse
    Relevance
    Sedimenting
    Sediments
Abstract (in english)
   Preliminary experiments have been carried out on the flow structure and patterns formation in the deposit (sediment), when the sedimenting layers consist of complex mixtures of polydisperse, non-spherical particles, with large surface roughness, possibly in liquids of complicated rheology (water mixture of sludge and slurry from wastewater treatment plant). A hierarchy of flow patterns instabilities in the bulk region was observed and recorded by video system, and the formation of complex irregular structures in the deposit region was documented by records. In sedimenting of these mixtures, the factors as internal stress and friction have primary importance for the sediment pattern with formation of large voids in the middle layers of the sediment beds.
Contributor
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
    U
Import date
    8. 8. 2012