发明名称 |
METHOD AND SYSTEM TO ACCOUNT FOR ANGLE OF ATTACK EFFECTS IN ENGINE NOISE SHIELDING TESTS |
摘要 |
There is provided a method to account for aircraft angle of attack effects in engine noise shielding in aircraft configurations having one or more engines mounted above a wing or a lifting body. The method includes computing a local flow field from a known standard full aircraft configuration oriented at a nonzero angle of attack. The method further includes computing a mean flow field in a test dataset from a small scale aircraft model test configuration oriented at a zero angle of attack. The method further includes matching the local flow field with the mean flow field to identify a selected noise measurement dataset. The method further includes rotating the selected noise measurement dataset in a far field directivity rotation angle to match the nonzero angle of attack, thus resulting in engine noise shielding results for the full aircraft configuration at the nonzero angle of attack. |
申请公布号 |
WO2012057924(A2) |
申请公布日期 |
2012.05.03 |
申请号 |
WO2011US50857 |
申请日期 |
2011.09.08 |
申请人 |
THE BOEING COMPANY;GUO, YUEPING |
发明人 |
GUO, YUEPING |
分类号 |
G06F17/50 |
主分类号 |
G06F17/50 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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