BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//talks.cam.ac.uk//v3//EN
BEGIN:VTIMEZONE
TZID:Europe/London
BEGIN:DAYLIGHT
TZOFFSETFROM:+0000
TZOFFSETTO:+0100
TZNAME:BST
DTSTART:19700329T010000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0100
TZOFFSETTO:+0000
TZNAME:GMT
DTSTART:19701025T020000
RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
CATEGORIES:Engineering - Mechanics and Materials Seminar Seri
 es
SUMMARY:T Upscaling Permeability in a Laboratory Context -
  Mathematics and Modelling - Patrick Selvadurai\, 
 McGill University
DTSTART;TZID=Europe/London:20100430T150000
DTEND;TZID=Europe/London:20100430T160000
UID:TALK23784AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/23784
DESCRIPTION:Permeability is a key parameter important to a var
 iety of applications in geological engineering and
  in the environmental geosciences. The conventiona
 l definition of Darcy flow enables the estimation 
 of permeability at different levels of detail. Thi
 s lecture will focus on the measurement of surface
  permeability characteristics of a large cuboidal 
 block of Indiana Limestone\, using a surface perme
 ameter. The paper discusses the theoretical develo
 pments\, the solution of the resulting triple inte
 gral equations and associated computational treatm
 ents that enable the mapping of the near surface p
 ermeability of the cuboidal region. Other forms of
  transient pulse tests for interface regions are a
 lso discussed. This data combined with a kriging p
 rocedure is used to develop results for the permea
 bility distribution at the interior of the cuboida
 l region. Upon verification of the absence of domi
 nant pathways for fluid flow through the cuboidal 
 region\, estimates are obtained for the “Effective
  Permeability” of the cuboid using estimates propo
 sed by the Wiener bounds\, Landau and Lifschitz\, 
 King\, Matheron\, Journel et al.\, Dagan and other
 s. The results of these estimates are compared wit
 h the geometric mean\, derived form the computatio
 nal estimates.
LOCATION:Oatley Seminar Room\, Department of Engineering
CONTACT:Ms Helen Gardner
END:VEVENT
END:VCALENDAR