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- W2118364780 abstract "A parallelized design optimization approach is presented for a subsonic S-shaped intake using aerodynamic sensitivity analysis. Two-equation turbulence model is adopted to predict the strong counter vortices in the S-shaped duct more precisely. Sensitivity analysis is performed for the three-dimensional Navier-Stokes equations coupled with two-equation turbulence models using a discrete adjoint method. For code validation, the result of the flow solver is compared with experiment data and bench marking data of other computation researches. To study the influence of turbulence models and grid refinement in the duct flow analysis, the results using several turbulence models are compared with each other on various grid systems. The adjoint variable code is validated by comparison with the complex step derivative results. And to guarantee a sufficient design space, NURBS equations are applied as a new shape function to modify the duct geometry freely. The capability and the efficiency or the present design tools are successfully demonstrated in three-dimensional subsonic inlet flow analysis and design optimization." @default.
- W2118364780 created "2016-06-24" @default.
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- W2118364780 date "2005-01-10" @default.
- W2118364780 modified "2023-10-14" @default.
- W2118364780 title "Optimal Shape Design of the S-Shaped Subsonic Intake Using NURBS" @default.
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- W2118364780 doi "https://doi.org/10.2514/6.2005-455" @default.
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