均值对奇异特征值分解算法的影响机制
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曹艳华,李楠,陈梦成
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Influence Mechanism of the Mean Values on POD Method
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Yanhua Cao,Nan Li,Mengcheng Chen
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表 1 矩阵$R^w$和$R^f$的奇异特征值及其所占比例($\%$)
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| 模态数 | $u^w$ | $u_1^w$ | $u_2^w$ | $u^f$ | $u_1^f$ | $u_2^f$ | | 1 | 410(96.2) | 229(97.2) | 189(99.1) | 13.4(82.4) | 8.8(89) | 4.7(74.9) | | 2 | 13.4(3.14) | 6.2(2.61) | 1.6(0.83) | 2.8(17) | 1.0(10.4) | 1.6(24.78) | | 3 | 2.8(0.65) | 0.45(0.19) | 0.02(0.01) | 0.08(0.5) | 0.06(0.57) | 0.02(0.31) | | 4 | 0.068(0.02) | 0.038(0.02) | 7e-4(3.8e-4) | 1.1e-2(0.07) | 2e-4(0.02) | 7e-4(0.01) |
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