Sökning: "porous media"

Visar resultat 1 - 5 av 125 avhandlingar innehållade orden porous media.

  1. 1. "Framtiden tillhör informatörerna” : samhällsinformationens formering i Sverige 1965–1975

    Författare :Fredrik Norén; Pelle Snickars; Johan Jarlbrink; Marie Cronqvist; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; public information; governmental information; public campaign; Sweden; digital humanities; digital text analysis; 1960s; 1970s; network; PR-history; cultural histories of media; conceptual history; medie- och kommunikationsvetenskap; media and communication studies;

    Sammanfattning : This dissertation is about the formation of governmental information in Sweden during the period 1965 to 1975. During this period information related issues were high up on the political agenda, in Sweden and internationally. LÄS MER

  3. 2. Steam Drying of Porous Media

    Författare :Jörgen Hager; Avdelningen för kemiteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; transport coefficients; experimental; heat and mass transfer; sorption isobar; packed bed; porous particles; hybrid model; volume average; porous media; superheated steam; steam drying; Chemical technology and engineering; Kemiteknik och kemisk teknologi;

    Sammanfattning : The present study concerns heat and mass transfer in porous media dried by superheated steam. Specifically, the steam drying process of a packed bed of porous particles was studied in order to obtain design data for a band drier. LÄS MER

  4. 3. Transitional flow in ordered porous media

    Författare :Tobias Forslund; Staffan Lundström; Sofia Larsson; Gunnar Hellström; Krishna Pillai; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Porous media; Lattice Boltzmann Method; GPU Programming; Tomographic PIV; Laser Doppler Velocimetry; Strömningslära; Fluid Mechanics;

    Sammanfattning : Porous media, here defined as any permeable structure allowing a fluid to flow through, are relevant to a multitude of engineering applications and natural processes. The observed macroscopic properties of the porous media such as mixing, heat transfer and apparent permeability are properties which are affected by the flow and especially the type of flow, or flow region. LÄS MER

  5. 4. On Computational Homogenization of Flow in Porous Media

    Författare :Carl Sandström; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; multiscale; porous media; stokes flow; FE2; computational homogenization; darcy flow;

    Sammanfattning : Porous materials are present in many natural as well as engineered structures. Engineering examples of porous materials include sandstone in which oil can be stored, earth dams, composite materials, air filters and sanitary products with fiber networks (e.g. diapers). LÄS MER

  7. 5. On Homogenization of Stokes Flow in Porous Media

    Författare :Carl Sandström; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; porous media; stokes flow; Multiscale modelling; darcy flow; computational homogenization;

    Sammanfattning : .... LÄS MER