1 /* ----------------------------------------------------------------------
2     This is the
3 
4     ██╗     ██╗ ██████╗  ██████╗  ██████╗ ██╗  ██╗████████╗███████╗
5     ██║     ██║██╔════╝ ██╔════╝ ██╔════╝ ██║  ██║╚══██╔══╝██╔════╝
6     ██║     ██║██║  ███╗██║  ███╗██║  ███╗███████║   ██║   ███████╗
7     ██║     ██║██║   ██║██║   ██║██║   ██║██╔══██║   ██║   ╚════██║
8     ███████╗██║╚██████╔╝╚██████╔╝╚██████╔╝██║  ██║   ██║   ███████║
9     ╚══════╝╚═╝ ╚═════╝  ╚═════╝  ╚═════╝ ╚═╝  ╚═╝   ╚═╝   ╚══════╝®
10 
11     DEM simulation engine, released by
12     DCS Computing Gmbh, Linz, Austria
13     http://www.dcs-computing.com, office@dcs-computing.com
14 
15     LIGGGHTS® is part of CFDEM®project:
16     http://www.liggghts.com | http://www.cfdem.com
17 
18     Core developer and main author:
19     Christoph Kloss, christoph.kloss@dcs-computing.com
20 
21     LIGGGHTS® is open-source, distributed under the terms of the GNU Public
22     License, version 2 or later. It is distributed in the hope that it will
23     be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
24     of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. You should have
25     received a copy of the GNU General Public License along with LIGGGHTS®.
26     If not, see http://www.gnu.org/licenses . See also top-level README
27     and LICENSE files.
28 
29     LIGGGHTS® and CFDEM® are registered trade marks of DCS Computing GmbH,
30     the producer of the LIGGGHTS® software and the CFDEM®coupling software
31     See http://www.cfdem.com/terms-trademark-policy for details.
32 
33 -------------------------------------------------------------------------
34     Contributing author and copyright for this file:
35     Stefan Radl, TU Graz
36     Copyright 2016 - TU Graz
37 ------------------------------------------------------------------------- */
38 
39 #ifdef FIX_CLASS
40 
41 FixStyle(massflow/mesh/sieve,FixMassflowMeshSieve)
42 
43 #else
44 
45 #ifndef LMP_FIX_MASSFLOW_MESH_SIEVE_H
46 #define LMP_FIX_MASSFLOW_MESH_SIEVE_H
47 
48 #include "fix_massflow_mesh.h"
49 #include <vector>
50 #define PIOVERFOUR 0.78539816339
51 
52 namespace LAMMPS_NS {
53 
54 class FixMassflowMeshSieve : public FixMassflowMesh {
55 
56  public:
57 
58   FixMassflowMeshSieve(class LAMMPS *lmp, int narg, char ** arg);
59   ~FixMassflowMeshSieve();
60 
61   void post_create();
62 //  void pre_delete(bool unfixflag);
63 
64   void init();
65 //  void setup(int vflag);
66   int setmask();
67 
68   void post_force(int vflag);
69   void pre_exchange();
70 
71  private:
72 
73   bool   sieveMultiSphereCanPass_;
74   bool   verbose_;
75   double sieveSize_;
76   double sieveSpacing_;
77   double sieveStiffness_;
78   double sieveDamping_;
79   double sievePassProbability(double);
80 
81  protected:
82   char   fixidApplyForce_[200];
83   class  FixPropertyAtom *fix_applyForce_;
84   class  RanPark *random_;
85 
86 }; //end class
87 
88 }
89 #endif
90 #endif
91