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Matthieu Schaller authoredMatthieu Schaller authored
const.h 2.61 KiB
/*******************************************************************************
* This file is part of SWIFT.
* Copyright (c) 2012 Pedro Gonnet (ptcedro.gonnet@durham.ac.uk)
* Matthieu Schaller (matthieu.schaller@durham.ac.uk)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
******************************************************************************/
#ifndef SWIFT_CONST_H
#define SWIFT_CONST_H
/* SPH Viscosity constants. */
#define const_viscosity_alpha 0.8f
#define const_viscosity_alpha_min \
0.1f /* Values taken from (Price,2004), not used in legacy gadget mode */
#define const_viscosity_alpha_max \
2.0f /* Values taken from (Price,2004), not used in legacy gadget mode */
#define const_viscosity_length \
0.1f /* Values taken from (Price,2004), not used in legacy gadget mode */
/* SPH Thermal conductivity constants. */
#define const_conductivity_alpha \
1.f /* Value taken from (Price,2008), not used in legacy gadget mode */
/* Time integration constants. */
#define const_max_u_change 0.1f
/* Dimensionality of the problem */
//#define HYDRO_DIMENSION_3D
//#define HYDRO_DIMENSION_2D
#define HYDRO_DIMENSION_1D
/* Hydrodynamical adiabatic index. */
#define HYDRO_GAMMA_5_3
//#define HYDRO_GAMMA_4_3
//#define HYDRO_GAMMA_2_1
/* Equation of state choice */
#define EOS_IDEAL_GAS
//#define EOS_ISOTHERMAL_GAS
/* Kernel function to use */
#define CUBIC_SPLINE_KERNEL
//#define QUARTIC_SPLINE_KERNEL
//#define QUINTIC_SPLINE_KERNEL
//#define WENDLAND_C2_KERNEL
//#define WENDLAND_C4_KERNEL
//#define WENDLAND_C6_KERNEL
/* SPH variant to use */
//#define MINIMAL_SPH
//#define GADGET2_SPH
//#define DEFAULT_SPH
#define GIZMO_SPH
/* Self gravity stuff. */
#define const_gravity_multipole_order 2
#define const_gravity_a_smooth 1.25f
#define const_gravity_r_cut 4.5f