Page 171 - Process Modelling and Simulation With Finite Element Methods

158 Process Modelling and Simulation with Finite Element Methods

Max ,
Time=l Velocity Vectors Time=l lsopycnals of cl
5 0 9524
5 n 9048
45 0 8571
4 45 4 0 8095
0 7619
0 6661
35 31 0 7143
06191
3 3 05714
0 1238
0 4762 4x6
25 25 0
2 2 0 381
0
15 15 0 3333 2857
1 0 2381
I 0 1415
05 0 0 1429 0953
06
n n 0476
0
2 I 0 1 2 3 I 5 5 I Mnlmm
Time=5 Velocty Vectors Time=5 lsopycnals of cl MllX I
5 5 0 354s
8636
0
45 0 ?Q91
45 o 8181
4
1 0 7726
OSBiT
0,272
35 35 0 6362
3 3 n 5-
n
4998
25 25 n 5453
0
2 2 0 4544 4w9
15 15 n 3634
03179
0 2725
I 1 n 227
06
05 0 1815
0 1361 0906
0
0
'2 1 0 1 2 3 4 5 6 7 2 1 0 1 2 3 4 5 6 7 WnOMS1
Time=lO Velocrty Vectors Time=lO lsopycnals of cl NI.X ?
5 5 09613
0 9225
45 0 a838
45 0 8451
4 1 0 BE63
07676
6901
35 35 0 0 7288
3 3 06511
0
0 5739
26 21 06126
5312
2 2 0 4951
0 4577
15 15 0419
I 0 3802
om
om
1 03415
05
05 0 0 z53
' 2 1 0 1 2 3 4 5 6 7 2 1 n I 2 3 4 5 6 i ~noisi
Velocrtv vectors Time=20 lsopycnals of cl Max I
0 973
5 0 945
n9im
45 n89w
4 0 EEd9
nam
n 8379
35 0 7838
3 0 7558
0 7298
25 0 7027
2 0 6757
0 6187
15 0 06217 1947
1 0 5676
n 5403
051%
05 0 4m
0 0 4595
2 1 0 1 2 3 4 5 6 7 hmO431
Figure 4.13 History of free convection in the buffer tank. Animation of times 0-1 shows the
spreading out of the gravity current and the establishment of the upper recirculation region. All later
times shown have apparently self-similar profiles. The strength of the velocity profile diminishes
with time.