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1 /*
2  * variables.h
3  *
4  * Author: Wolfgang Kapferer
5  */
6 
7 #ifndef VARIABLES_global_
8 #define VARIABLES_global_
9 
10 double grav_acc;
11 
12 /* Data types */
13 typedef enum {
14  DOM_FLUID = 0,
15  DOM_SOLID
16 } dom_state;
17 
18 
19 /* Welcome to variables home*/
20 
21 //restarting the code or not
22 int restart;
23 
24 // the resolution
25 int x, y, z, dimension;
26 
27 int max_array_length;
28 
29 // for the grid the nmin, nmax
30 int nminx, nmaxx;
31 int nminy, nmaxy;
32 int nminz, nmaxz;
33 
34 int shock_or_not, counter, counter_restart;
35 
36 double Gamma, Gamma1;
37 
38 //error catch
39 double smallp, smallr, small;
40 
41 double xmin, xmax, ymin, ymax, zmin, zmax;
42 
43 //volume of one grid cell
44 double cell_volume;
45 
46 //timing
47 double dt, dt_no_shock, dt_shock;
48 double time_sim, endtime_sim;
49 double minute_in_sec;
50 double dt_integrated;
51 
52 //the old time_sim step;
53 double olddt;
54 
55 //the cfl parameter
56 double courant;
57 
58 //the 3D arrays for hydro
59 double ***rho, ***pre, ***eng, ***vx, ***vy, ***vz, ***e_in;
60 
61 //the 3D arrays for viscosity calculation
62 double ***rho_visc, ***vx_visc, ***vy_visc, ***vz_visc;
63 
64 //an advectable gas
65 double ***marker;
66 
67 //wind marker
68 double ***wind_marker;
69 
70 //the 3D array for the domain
71 int ***dom;
72 
73 //the 3D array for the sound_emitter
74 int ***soundemitter;
75 
76 //pressure on solid and old pressure array
77 double ***pressure_on_solid, ***pre_old;
78 
79 //for the dB-map
80 double ***pressure_integrated, ***dB_map;
81 
82 // init grid
83 double *zdx, *zxc, *zxa;
84 double *zdy, *zyc, *zya;
85 double *zdz, *zzc, *zza;
86 
87 double spacing;
88 
89 //boundary condition switch
90 typedef struct {
91  int up;
92  int down;
93 
94  int left;
95  int right;
96 
97  int front;
98  int back;
99 
100 } boundary;
101 
102 boundary bound;
103 
104 char dens_ic[200], temp_ic[200], vel_ic[200], obst_ic[200];
105 char sound_ic[200], marker_ic[200], wind_ic[200];
106 char output_dir[200];
107 
108 int intial_velocity_file;
109 
110 double output_frequency;
111 double restart_frequency;
112 
113 int gravity_on_off;
114 
115 int viscosity_on_off;
116 
117 double C1_visc;
118 double S_visc;
119 
120 int wind_on_off;
121 double wind_speed;
122 int wind_direction;
123 
124 int make_ics;
125 
126 int filetype;
127 
128 double inflow_velocity;
129 double inflow_density;
130 double inflow_temperature;
131 int starting_flow;
132 
133 double gasconstant;
134 
135 int number_of_threads;
136 
137 //if obstacles are included
138 int with_obstacles;
139 
140 double obstacle_density, obstacle_temperature, obstacle_heat_conductivity;
141 
142 //for the heat-transfer calculation at the boundary of obstacles
143 double specific_heat_capacity_gas;
144 double specific_heat_capacity_obstacle;
145 
146 int strat_const_atmos;
147 
148 //if advection of a maker field is desired
149 int advection;
150 
151 double marker_density;
152 
153 //for the sound generator the initial pressure at the position of the sound source
154 int with_sound_emitter;
155 double pre_initial_sound;
156 double sound_pressure_level;
157 int with_one_pulse;
158 double sound_frequency;
159 double sound_reflexion;
160 double obstalce_absorption_coefficient;
161 double mean_pressure;
162 double pressure;
163 
164 double intial_soundspeed;
165 
166 int dB_Map_ready;
167 
168 #endif /* VARIABLES_global_ */
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