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DTSTAMP:20210916T132452Z
LOCATION:Louis Favre
DTSTART;TZID=Europe/Stockholm:20210708T113000
DTEND;TZID=Europe/Stockholm:20210708T120000
UID:submissions.pasc-conference.org_PASC21_sess156_msa136@linklings.com
SUMMARY:Matrix Computing of Multi-field and Fluid-Solid Coupling Processes
  Based on the Discrete Element Method
DESCRIPTION:Minisymposium\n\nMatrix Computing of Multi-field and Fluid-Sol
 id Coupling Processes Based on the Discrete Element Method\n\nLiu, Zhu\n\n
 Based on the traditional pore network model and the discrete element metho
 d, a pore density flow method is introduced, which can be used to simulate
  multi-field and fluid-solid coupling processes. In this method, the solid
  skeleton is represented by the dense random packing of spherical particle
 s and the pore space is dispersed into a network of pores. The underlying 
 idea is that fluids with the same state inside a single pore, are driven b
 y pressure difference to perform fluid movement based on Darcy's law. Temp
 erature diffuses between fluids in the form of heat convection and heat co
 nduction. The method was implemented in the high-performance DEM software 
 MatDEM. By the matrix computing, the speed of numerical computing is impro
 ved significantly. A geothermal tank model was established and compared wi
 th experiments to verify the feasibility of the pore density flow model. T
 his model further simplifies the calculation and can effectively perform l
 arge-scale engineering-scale simulations.\n\nDomain: Solid Earth Dynamics,
  Engineering
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