Open Access
Table 1
Default parameters used in the Airfoil optimization problem.
| Number of design variables | 2065 |
|---|---|
| Number of nodes | 1136 |
| Number of degrees of freedom | 2152 |
| Young Modulus E0 [MPa] | 15 |
| Minimum Young Modulus Emin [MPa] | 0.015 |
| Poisson ratio ν | 0.3 |
| Lamé first parameter λ0 [MPa] | 8.65 |
| Lamé second parameter μ0 [MPa] | 5.77 |
| Minimum Lamé first parameter λmin [MPa] | 0.00865 |
| Minimum Lamé second parameter μmin [MPa] | 0.00577 |
| Displacement constraint U0 [mm] | − 21 |
| Stress constraint σlim [MPa] | 1 |
| Chord length c [mm] | 150 |
| Abscissa force’s application point xapp∕c | 0.3 |
| Ordinate force’s application point yapp [mm] | 5 |
| Intensity applied force Fext [N/mm] | 7 |
| Limits of Boundary Conditions x∕c [%] | 35 − 65 |
| Penalization factor p | 3.0 |
| Radius filter Rmin [mm] | 6.0 |
| Aggregation constant P | 4 |
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