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应用复变量方法计算目标函数关于设计变量的灵敏度,以此进行优化设计。该方法尽管计算量较大,但求灵敏度简单易行,适合目标函数比较复杂的情形,而且精度很高,几乎不受扰动步长影响,数值优化过程特别健壮,所以非常适用于设计变量不多或气动力计算很快的情况。
The complex variable method is used to calculate the sensitivity of the objective function to the design variables to optimize the design. Although this method is computationally intensive, it is simple and feasible to seek the sensitivity and is suitable for the complicated objective function. The accuracy is very high and it is hardly disturbed by the disturbance step. The numerical optimization process is particularly robust. Therefore, this method is very suitable for the design variables Or the aerodynamic calculation is very fast.