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tailorcrete:examples:v-funnel [2012/09/11 16:10] – Edited language, improved formatting bptailorcrete:examples:v-funnel [2012/09/13 09:14] (current) bp
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 ==== Computational Model ==== ==== Computational Model ====
-{{ :tailorcrete:v-funnel_geometry.png?500|}}+{{ :tailorcrete:v-funnel_geometry.png?500|Fig.2: Computational mesh}}
 The setup of 2D computational model is illustrated in Fig. 1b. The problem is modeled as a two-phase flow problem, consisting of two inmissible fluids: one representing the self compacting concrete and the other representing air. The evolving interface between the two fluids is tracked using the Level Set Method, see reference [1] for details. The Figure 1.b also illustrates the applied boundary boundary conditions. At the beginning of the simulation, the problem domain is divided into two regions, one initially filled with SCC (modelled as non-Newtonian fluid using Bingham model) and another one on the top of SCC representing air (modelled as newtonian fuid). The following constitutive parameters for Bingham model of SCC were assumed in the simulation: The setup of 2D computational model is illustrated in Fig. 1b. The problem is modeled as a two-phase flow problem, consisting of two inmissible fluids: one representing the self compacting concrete and the other representing air. The evolving interface between the two fluids is tracked using the Level Set Method, see reference [1] for details. The Figure 1.b also illustrates the applied boundary boundary conditions. At the beginning of the simulation, the problem domain is divided into two regions, one initially filled with SCC (modelled as non-Newtonian fluid using Bingham model) and another one on the top of SCC representing air (modelled as newtonian fuid). The following constitutive parameters for Bingham model of SCC were assumed in the simulation:
   *yield stress 60 [Pa]    *yield stress 60 [Pa] 
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 On the video below, motion of concrete-air interface is shown. The characteristic "V-funnel time" (the time from opening the gate at the bottom to the moment when it is possible to look through the gate) is aproximately 2s. On the video below, motion of concrete-air interface is shown. The characteristic "V-funnel time" (the time from opening the gate at the bottom to the moment when it is possible to look through the gate) is aproximately 2s.
  
-{{:tailorcrete:examples:v_funnel_tau60_mu20.avi|}}+{{video>http://www.oofem.org/wiki/lib/exe/fetch.php?media=tailorcrete:examples:v_funnel_tau60_mu20.avi|Animation of V-funnel emptying.}}
  
 ==== References ==== ==== References ====
tailorcrete/examples/v-funnel.1347372607.txt.gz · Last modified: 2012/09/11 16:10 by bp