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     (if not contributing author is listed, this file has been contributed
36     by the core developer)
37 
38     Copyright 2014-     DCS Computing GmbH, Linz
39 ------------------------------------------------------------------------- */
40 
41 #ifdef FIX_CLASS
42 
43 FixStyle(buoyancy,FixBuoyancy)
44 
45 #else
46 
47 #ifndef LMP_FIX_BUOYANCY_H
48 #define LMP_FIX_BUOYANCY_H
49 
50 #include "fix_base_liggghts.h"
51 
52 namespace LAMMPS_NS {
53 
54 class FixBuoyancy : public FixBaseLiggghts {
55 
56  public:
57 
58   FixBuoyancy(class LAMMPS *, int, char **);
59   virtual ~FixBuoyancy();
60   int setmask();
61   void init();
62   void setup(int);
63   void min_setup(int);
64   void post_force(int);
65   void post_force_respa(int, int, int);
66   void min_post_force(int);
67 
68   double compute_vector(int n);
69 
70  private:
71 
72   void test_direction();
73 
74   double density_;
75   int nlevels_respa;
76 
77   // fluid level
78   int dim_;
79   double direction_;
80   double fluid_level_;
81 
82   // gravity
83   class FixGravity *fix_gravity_;
84 
85   bool force_flag_;
86   double buyoancy_force_total_[3];
87 };
88 
89 }
90 
91 #endif
92 #endif
93 
94 /* ERROR/WARNING messages:
95 
96 E: Illegal ... command
97 
98 Self-explanatory.  Check the input script syntax and compare to the
99 documentation for the command.  You can use -echo screen as a
100 command-line option when running LAMMPS to see the offending line.
101 
102 */
103