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 2012- DCS Computing GmbH, Linz 39 Copyright 2009-2012 JKU Linz 40 ------------------------------------------------------------------------- */ 41 42 #ifdef FIX_CLASS 43 44 FixStyle(check/timestep/gran,FixCheckTimestepGran) 45 46 #else 47 48 #ifndef LMP_FIX_CHECK_TIMESTEP_GRAN_H 49 #define LMP_FIX_CHECK_TIMESTEP_GRAN_H 50 51 #include "fix.h" 52 53 namespace LAMMPS_NS { 54 55 class FixCheckTimestepGran : public Fix { 56 public: 57 FixCheckTimestepGran(class LAMMPS *, int, char **); 58 int setmask(); 59 void init(); 60 void end_of_step(); 61 double compute_vector(int); 62 63 private: 64 class Properties* properties; 65 class PairGran* pg; 66 class FixWallGran* fwg; 67 class FixPropertyGlobal* Y; 68 class FixPropertyGlobal* nu; 69 void calc_rayleigh_hertz_estims(); 70 double rayleigh_time,hertz_time; 71 double fraction_rayleigh,fraction_hertz,fraction_skin; 72 double fraction_rayleigh_lim,fraction_hertz_lim; 73 double v_rel_max_simulation; //max relative velocity detected in simulation 74 double vmax_user; 75 double r_min; 76 bool warnflag,errorflag; 77 double ** Yeff; 78 }; 79 80 } 81 82 #endif 83 #endif 84