The framework and application of unsteady adjoint-based aerodynamic and aeroacoustic optimization methodology for propellers. (IMAGE)
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The high-efficiency aerodynamic and aeroacoustic optimization framework comprises the following key modules: 1) Shape parameterization, which transforms the baseline geometry into a set of design variables; 2) CFD-CAA solver, used to evaluate aerodynamic and aeroacoustic objectives and constraints; 3) Unsteady adjoint solver, which computes multi-objective sensitivities; and 4) Gradient-based optimizer, which utilizes these sensitivities to iteratively refine the design. Based on this framework, a multi-objective trade-off optimization study is performed by adjusting the weighting factors between aerodynamics and aeroacoustics. This enables the exploration of their influence on the resulting optimal configurations and provides deeper insight into the design principles behind high-efficiency and low-noise propellers.
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Chinese Journal of Aeronautics
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