1 #ifndef __CS_LAGR_GRADIENTS_H__
2 #define __CS_LAGR_GRADIENTS_H__
3 
4 /*============================================================================
5  * Functions and types for lagrangian field gradients
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 gradients.
55  *
56  *  - gradient of total pressure
57  *  - velocity gradient
58  *
59  * \param[in]   time_id   0: current time, 1: previous
60  * \param[out]  grad_pr   pressure gradient
61  * \param[out]  grad_vel  velocity gradient
62  */
63 /*----------------------------------------------------------------------------*/
64 
65 void
66 cs_lagr_gradients(int            time_id,
67                   cs_real_3_t   *gradpr,
68                   cs_real_33_t  *gradvf);
69 
70 /*----------------------------------------------------------------------------*/
71 
72 END_C_DECLS
73 
74 #endif /* __CS_LAGR_GRADIENTS_H__ */
75