Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/111638
Title: S-shaped inlet design optimization using the adjoint equation method
Authors: Zhang, Z. 
Lum, K.-Y. 
Issue Date: 2006
Citation: Zhang, Z.,Lum, K.-Y. (2006). S-shaped inlet design optimization using the adjoint equation method. Collection of Technical Papers - AIAA/ASME/SAE/ASEE 42nd Joint Propulsion Conference 2 : 1351-1378. ScholarBank@NUS Repository.
Abstract: This paper presents an application of the adjoint equation method, a well-established method for aerodynamic shape optimization in external flow, to the internal-flow problem of engine inlet design. A serpentine shaped duct with prescribed entrance and exit geometries is considered, where the design objective is to optimize the curvature and cross-sections of the duct in order to reduce flow distortion at the exit. In an indirect formulation of the problem, the wall pressure drag is chosen as objective function, under which the adjoint method can be formulated. Inviscid flow is considered, with the Euler equation and its adjoint as governing equations. The results show that this leads in return to an improved uniformity of the exit-face total pressure, albeit with slight loss in the average total pressure.
Source Title: Collection of Technical Papers - AIAA/ASME/SAE/ASEE 42nd Joint Propulsion Conference
URI: http://scholarbank.nus.edu.sg/handle/10635/111638
ISBN: 1563478188
Appears in Collections:Staff Publications

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