1 | MODULE timeloop_sw_mod |
---|
2 | USE icosa |
---|
3 | USE etat0_williamson_mod |
---|
4 | |
---|
5 | INTEGER,PARAMETER :: euler=1, leapfrog=2, leapfrog_matsuno=3, adam_bashforth=4 |
---|
6 | |
---|
7 | CONTAINS |
---|
8 | |
---|
9 | SUBROUTINE timeloop |
---|
10 | USE icosa |
---|
11 | USE caldyn_sw_mod |
---|
12 | USE dissip_sw_mod |
---|
13 | USE etat0_mod |
---|
14 | IMPLICIT NONE |
---|
15 | TYPE(t_field),POINTER :: f_h(:),f_hm1(:), f_hm2(:) |
---|
16 | TYPE(t_field),POINTER :: f_u(:),f_um1(:),f_um2(:) |
---|
17 | TYPE(t_field),POINTER :: f_dh(:),f_dhm1(:), f_dhm2(:) |
---|
18 | TYPE(t_field),POINTER :: f_du(:),f_dum1(:),f_dum2(:) |
---|
19 | |
---|
20 | REAL(rstd),POINTER :: h(:) ,hm1(:), hm2(:) |
---|
21 | REAL(rstd),POINTER :: u(:) , um1(:), um2(:) |
---|
22 | REAL(rstd),POINTER :: dh(:), dhm1(:), dhm2(:) |
---|
23 | REAL(rstd),POINTER :: du(:), dum1(:), dum2(:) |
---|
24 | INTEGER :: ind |
---|
25 | INTEGER :: it,i,j,n |
---|
26 | INTEGER :: scheme |
---|
27 | INTEGER :: matsuno_period |
---|
28 | |
---|
29 | |
---|
30 | |
---|
31 | scheme=leapfrog_matsuno |
---|
32 | CALL getin('scheme',scheme) |
---|
33 | |
---|
34 | matsuno_period=5 |
---|
35 | CALL getin('matsuno_period',matsuno_period) |
---|
36 | IF (scheme==leapfrog) matsuno_period=itaumax+1 |
---|
37 | |
---|
38 | |
---|
39 | CALL allocate_field(f_h,field_t,type_real) |
---|
40 | CALL allocate_field(f_hm1,field_t,type_real) |
---|
41 | CALL allocate_field(f_hm2,field_t,type_real) |
---|
42 | CALL allocate_field(f_dh,field_t,type_real) |
---|
43 | CALL allocate_field(f_dhm1,field_t,type_real) |
---|
44 | CALL allocate_field(f_dhm2,field_t,type_real) |
---|
45 | |
---|
46 | CALL allocate_field(f_u,field_u,type_real) |
---|
47 | CALL allocate_field(f_um1,field_u,type_real) |
---|
48 | CALL allocate_field(f_um2,field_u,type_real) |
---|
49 | CALL allocate_field(f_du,field_u,type_real) |
---|
50 | CALL allocate_field(f_dum1,field_u,type_real) |
---|
51 | CALL allocate_field(f_dum2,field_u,type_real) |
---|
52 | |
---|
53 | |
---|
54 | CALL allocate_caldyn |
---|
55 | CALL init_dissip |
---|
56 | |
---|
57 | CALL etat0_williamson(f_h,f_u) |
---|
58 | |
---|
59 | DO it=0,itaumax |
---|
60 | PRINT *,"SW: It No :",It |
---|
61 | |
---|
62 | CALL caldyn(f_h, f_u, f_dh, f_du) |
---|
63 | |
---|
64 | |
---|
65 | IF (scheme==Euler) THEN |
---|
66 | CALL euler_scheme |
---|
67 | ELSE IF (scheme==leapfrog) THEN |
---|
68 | CALL leapfrog_scheme |
---|
69 | ELSE IF (scheme==leapfrog_matsuno) THEN |
---|
70 | CALL leapfrog_matsuno_scheme |
---|
71 | ELSE IF (scheme==adam_bashforth) THEN |
---|
72 | CALL dissip(f_u,f_du) |
---|
73 | CALL adam_bashforth_scheme |
---|
74 | ENDIF |
---|
75 | |
---|
76 | ENDDO |
---|
77 | |
---|
78 | CONTAINS |
---|
79 | |
---|
80 | SUBROUTINE Euler_scheme |
---|
81 | IMPLICIT NONE |
---|
82 | INTEGER :: ind |
---|
83 | |
---|
84 | DO ind=1,ndomain |
---|
85 | h=f_h(ind) ; u=f_u(ind) ; |
---|
86 | dh=f_dh(ind) ; du=f_du(ind) ; |
---|
87 | h(:)=h(:)+dt*dh(:) |
---|
88 | u(:)=u(:)+dt*du(:) |
---|
89 | ENDDO |
---|
90 | |
---|
91 | END SUBROUTINE Euler_scheme |
---|
92 | |
---|
93 | SUBROUTINE leapfrog_scheme |
---|
94 | IMPLICIT NONE |
---|
95 | INTEGER :: ind |
---|
96 | |
---|
97 | DO ind=1,ndomain |
---|
98 | h=f_h(ind) ; u=f_u(ind) ; |
---|
99 | hm1=f_hm1(ind) ; um1=f_um1(ind) ; |
---|
100 | hm2=f_hm2(ind) ; um2=f_um2(ind) ; |
---|
101 | dh=f_dh(ind) ; du=f_du(ind) ; |
---|
102 | |
---|
103 | IF (it==0) THEN |
---|
104 | hm2(:)=h(:) ; um2(:)=u(:) |
---|
105 | |
---|
106 | h(:)=h(:)+dt*dh(:) |
---|
107 | u(:)=u(:)+dt*du(:) |
---|
108 | hm1(:)=h(:) ; um1(:)=u(:) |
---|
109 | |
---|
110 | ELSE |
---|
111 | |
---|
112 | h(:)=hm2(:)+2*dt*dh(:) |
---|
113 | u(:)=um2(:)+2*dt*du(:) |
---|
114 | |
---|
115 | hm2(:)=hm1(:) ; um2(:)=um1(:) |
---|
116 | hm1(:)=h(:) ; um1(:)=u(:) |
---|
117 | ENDIF |
---|
118 | |
---|
119 | ENDDO |
---|
120 | END SUBROUTINE leapfrog_scheme |
---|
121 | |
---|
122 | SUBROUTINE leapfrog_matsuno_scheme |
---|
123 | IMPLICIT NONE |
---|
124 | INTEGER :: ind |
---|
125 | |
---|
126 | DO ind=1,ndomain |
---|
127 | h=f_h(ind) ; u=f_u(ind) |
---|
128 | hm1=f_hm1(ind) ; um1=f_um1(ind) |
---|
129 | hm2=f_hm2(ind) ; um2=f_um2(ind) |
---|
130 | dh=f_dh(ind) ; du=f_du(ind) ; |
---|
131 | |
---|
132 | |
---|
133 | IF (MOD(it,matsuno_period+1)==0) THEN |
---|
134 | hm1(:)=h(:) ; um1(:)=u(:) |
---|
135 | h(:)=hm1(:)+dt*dh(:) |
---|
136 | u(:)=um1(:)+dt*du(:) |
---|
137 | |
---|
138 | ELSE IF (MOD(it,matsuno_period+1)==1) THEN |
---|
139 | |
---|
140 | h(:)=hm1(:)+dt*dh(:) |
---|
141 | u(:)=um1(:)+dt*du(:) |
---|
142 | |
---|
143 | hm2(:)=hm1(:) ; um2(:)=um1(:) |
---|
144 | hm1(:)=h(:) ; um1(:)=u(:) |
---|
145 | |
---|
146 | ELSE |
---|
147 | |
---|
148 | h(:)=hm2(:)+2*dt*dh(:) |
---|
149 | u(:)=um2(:)+2*dt*du(:) |
---|
150 | |
---|
151 | hm2(:)=hm1(:) ; um2(:)=um1(:) |
---|
152 | hm1(:)=h(:) ; um1(:)=u(:) |
---|
153 | |
---|
154 | ENDIF |
---|
155 | |
---|
156 | ENDDO |
---|
157 | |
---|
158 | END SUBROUTINE leapfrog_matsuno_scheme |
---|
159 | |
---|
160 | SUBROUTINE adam_bashforth_scheme |
---|
161 | IMPLICIT NONE |
---|
162 | INTEGER :: ind |
---|
163 | |
---|
164 | DO ind=1,ndomain |
---|
165 | h=f_h(ind) ; u=f_u(ind) |
---|
166 | dh=f_dh(ind) ; du=f_du(ind) |
---|
167 | dhm1=f_dhm1(ind) ; dum1=f_dum1(ind) |
---|
168 | dhm2=f_dhm2(ind) ; dum2=f_dum2(ind) |
---|
169 | |
---|
170 | IF (it==0) THEN |
---|
171 | dhm1(:)=dh(:) ; dum1(:)=du(:) |
---|
172 | dhm2(:)=dhm1(:) ; dum2(:)=dum1(:) |
---|
173 | ENDIF |
---|
174 | |
---|
175 | h(:)=h(:)+dt*(23*dh(:)-16*dhm1(:)+5*dhm2(:))/12 |
---|
176 | u(:)=u(:)+dt*(23*du(:)-16*dum1(:)+5*dum2(:))/12 |
---|
177 | |
---|
178 | dhm2(:)=dhm1(:) ; dum2(:)=dum1(:) |
---|
179 | dhm1(:)=dh(:) ; dum1(:)=du(:) |
---|
180 | |
---|
181 | ENDDO |
---|
182 | |
---|
183 | |
---|
184 | END SUBROUTINE adam_bashforth_scheme |
---|
185 | |
---|
186 | END SUBROUTINE timeloop |
---|
187 | |
---|
188 | |
---|
189 | |
---|
190 | END MODULE timeloop_sw_mod |
---|