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Original Articles

Vibrational genetic algorithm (VGA) and dynamic mesh in the optimization of 3D wing geometries

, &
Pages 643-657 | Received 08 Feb 2006, Accepted 11 Jul 2006, Published online: 22 Aug 2007

Figures & data

Figure 1. Outlines of the main project.

Figure 1. Outlines of the main project.

Figure 2. Pressure coefficient distribution over the section at 0.2b.

Figure 2. Pressure coefficient distribution over the section at 0.2b.

Figure 3. Vibration direction.

Figure 3. Vibration direction.

Figure 4. Comparison of best fitness values for strategies I and II.

Figure 4. Comparison of best fitness values for strategies I and II.

Figure 5. Calculated and target airfoils.

Figure 5. Calculated and target airfoils.

Figure 6. Calculated and target Cp distributions.

Figure 6. Calculated and target Cp distributions.

Figure 7. Change in the average fitness and the development of the maximum fitness value.

Figure 7. Change in the average fitness and the development of the maximum fitness value.

Figure 8. Improvement in the drag coefficient.

Figure 8. Improvement in the drag coefficient.

Figure 9. Wing sections of the 50th population (14 members).

Figure 9. Wing sections of the 50th population (14 members).

Figure 10. The mesh structures of the first and the best wing found at the 50th population (initial: dashed line, 50th: solid line).

Figure 10. The mesh structures of the first and the best wing found at the 50th population (initial: dashed line, 50th: solid line).

Figure 11. The Cp distributions of the first and the best wing found at the 50th population (initial: dashed line, 50th: solid line).

Figure 11. The Cp distributions of the first and the best wing found at the 50th population (initial: dashed line, 50th: solid line).

Figure 12. The Cp distributions over the root sections found at different stages.

Figure 12. The Cp distributions over the root sections found at different stages.

Figure 13. Wing sections of the first and the best members found at the later stages (with and without thickness ratio constraint).

Figure 13. Wing sections of the first and the best members found at the later stages (with and without thickness ratio constraint).

Figure 14. CPU time improvement.

Figure 14. CPU time improvement.

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