1 #ifndef __CS_LAGR_LAGCAR_H__
2 #define __CS_LAGR_LAGCAR_H__
3 
4 /*============================================================================
5  * Compute particle characteristics: Tp, TL et PI
6  *============================================================================*/
7 
8 /*
9   This file is part of Code_Saturne, a general-purpose CFD tool.
10 
11   Copyright (C) 1998-2021 EDF S.A.
12 
13   This program is free software; you can redistribute it and/or modify it under
14   the terms of the GNU General Public License as published by the Free Software
15   Foundation; either version 2 of the License, or (at your option) any later
16   version.
17 
18   This program is distributed in the hope that it will be useful, but WITHOUT
19   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
20   FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
21   details.
22 
23   You should have received a copy of the GNU General Public License along with
24   this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
25   Street, Fifth Floor, Boston, MA 02110-1301, USA.
26 */
27 
28 /*----------------------------------------------------------------------------*/
29 
30 #include "cs_defs.h"
31 
32 /*----------------------------------------------------------------------------*/
33 
34 BEGIN_C_DECLS
35 
36 /*=============================================================================
37  * Macro definitions
38  *============================================================================*/
39 
40 /*============================================================================
41  * Type definitions
42  *============================================================================*/
43 
44 /*=============================================================================
45  * Global variables
46  *============================================================================*/
47 
48 /*=============================================================================
49  * Public function prototypes
50  *============================================================================*/
51 
52 /*----------------------------------------------------------------------------*/
53 /*!
54  * \brief Compute particle characteristics: Tp, TL and PI
55  *
56  * \param[in] iprev     time step indicator for fields
57  *                        0: use fields at current time step
58  *                        1: use fields at previous time step
59  * \param[in]  dt       time step (per cell)
60  * \param[out] taup     dynamic characteristic time
61  * \param[out] tlag     fluid characteristic time
62  * \param[out] piil     term in integration of up sde
63  * \param[out] bx       turbulence characteristics
64  * \param[out] tempct   thermal charactersitic time
65  * \param[in]  gradpr   pressure gradient
66  * \param[in]  gradvf   fluid velocity gradient
67  */
68 /*----------------------------------------------------------------------------*/
69 
70 void
71 cs_lagr_car(int              iprev,
72             const cs_real_t  dt[],
73             cs_real_t        taup[],
74             cs_real_3_t      tlag[],
75             cs_real_3_t      piil[],
76             cs_real_33_t     bx[],
77             cs_real_t        tempct[],
78             cs_real_3_t      gradpr[],
79             cs_real_33_t     gradvf[]);
80 
81 /*----------------------------------------------------------------------------*/
82 
83 END_C_DECLS
84 
85 #endif /* __CS_LAGR_LAGCAR_H__ */
86