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| Low boom inverse design method based on hybrid grid |
| Received:June 19, 2012 Revised:November 12, 2012 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201305021 |
| KeyWord:supersonic aircraft shock wave sonic boom inverse design method structure/unstructured hybrid grid |
| Author | Institution |
| 冯晓强 |
西北工业大学 航空学院, 西安 |
| 宋笔锋 |
西北工业大学 航空学院, 西安 |
| 李占科 |
西北工业大学 航空学院, 西安 |
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| Abstract: |
| Low sonic boom design method has become one key technology of next generation of supersonic aircraft.The original SGD method can't evaluate the nonlinear effect of sonic boom in near field.The near field pressure distribution is used in inverse design to replace the F function.Near field prediction of sonic boom is based on point to point structured/unstructured hybrid grid,avoiding the difficulty of generating structure grid on complex aircraft configuration and improving the analysis efficiency.The results demonstrate that the low boom configuration based on the new inverse design method has lower sonic boom overpressure and perceived level of loudness than low boom configuration based on original SGD method. |