tdo not categorize contacts between fixed particles as force chains - sphere - GPU-based 3D discrete element method algorithm with optional fluid coupling
  HTML git clone git://src.adamsgaard.dk/sphere
   DIR Log
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       ---
   DIR commit 1df3a06a8dd92aef65a43ed30b7d7527c4750445
   DIR parent c3ebf6d9df5f0c497d21a1f3f26e294c9346f69f
  HTML Author: Anders Damsgaard <anders.damsgaard@geo.au.dk>
       Date:   Fri, 10 Apr 2015 14:05:07 +0200
       
       do not categorize contacts between fixed particles as force chains
       
       Diffstat:
         M src/sphere.cpp                      |       3 ++-
       
       1 file changed, 2 insertions(+), 1 deletion(-)
       ---
   DIR diff --git a/src/sphere.cpp b/src/sphere.cpp
       t@@ -698,7 +698,8 @@ void DEM::findOverlaps(
                        delta_n = x_ij_length - (x_i.w + x_j.w);
        
                        // Is there overlap?
       -                if (delta_n < 0.0) {
       +                // Do not include if both particles are fixed
       +                if (delta_n < 0.0 && (k.vel[i].w == 0 && k.vel[j].w == 0)) {
        
                            // Store particle indexes and delta_n
                            std::vector<unsigned int> ij_pair(2);