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SUMMARY:Scales and coupling in geological porous media
DTSTART:20110524T081500
DTSTAMP:20260428T055730Z
UID:bb81b1f0ba09a787eff535109f1101aa727171cee7c3281943840385
CATEGORIES:Conferences - Seminars
DESCRIPTION:Ivan Lunati\, SNSF Professor\, University of Lausanne\, Instit
 ute of Geophysics\, Lausanne\, CH\nAquifers and reservoirs are characteriz
 ed by complex structures\, which exhibit a hierarchy of heterogeneity scal
 es ranging from the pore scale (at which the processes physically occur) t
 o the formation scale (at which the system needs to be described in practi
 cal applications). Coping with this disparity of scales has been the major
  issue in traditional hydrogeological problems\, in which highly heterogen
 eous properties dictate fluid flow and contaminant transport. In modern ap
 plications we are forced to deal with a higher level of complexity due to 
 fact that we are confronted to several simultaneous and interacting physic
 ochemical processes. Understanding and modeling the interaction between co
 upled processes and the complex structure of geological media is essential
  in many applications that have a large societal impact\, such as geologic
 al storage of greenhouse gases or safe underground disposal of nuclear was
 te. As there is in general no clear scale separation\, traditional approac
 hes based upscaling (e.g.\, homogenization\, volume average) are not effec
 tive and novel multiscale techniques are required\, which enable to descri
 be all the relevant temporal and spatial scales. These techniques\, togeth
 er with improved conceptual models based on experimental observations\, ca
 n contribute both to advance the fundamental understanding of the processe
 s and to improve the reliability of the models used in practical applicati
 ons.
LOCATION:ELA 1
STATUS:CONFIRMED
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