Modélisation, analyse mathématique et simulations numériques de ...

tel-00656013, version 1 - 3 Jan 2012
0.1
0.01
0.001
0.0001
1 Density profile
1e-05
0 5 10 15 20
t
0.1
0.01
0.001
0.0001
1 Momentum profile
1e-05
0 5 10 15 20
Figure 4.6: Influence of the relaxation parameter ε: evolution of E1 (left) and E2 (right) for
ε = 0.5 (biggest slope of the envelop curve), 0.05 and 0.005 (smallest slope), and comparison
with the Euler system (dashed black line).
t