Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/116786
Title: S-shaped intake duct parametrization
Authors: Dhanabalan, S.S. 
Won, K.S. 
Tsai, H.M. 
Issue Date: 2006
Source: Dhanabalan, S.S.,Won, K.S.,Tsai, H.M. (2006). S-shaped intake duct parametrization. Collection of Technical Papers - AIAA Applied Aerodynamics Conference 2 : 1153-1171. ScholarBank@NUS Repository.
Abstract: The work attempts to make use of explicit mathematical functions for three-dimensional shape definition of inlet ducts. The motivation is that this facilitates the design optimization of duct shapes for improved aerodynamic performances. The parameters that are known to influence the aerodynamic properties are used to controls the geometrical properties. Of significance are the definitions of the mean flow line (MFL), cross sectional area and shape variations that dictate the general shape of the duct such that generic ducts can be generated. The cross section of the duct by definition is normal to the MFL. To determine the parameters for any generic duct that can be discretized, a novel inverse process is used that makes use of Proper Orthogonal Decomposition (POD). Examples for parameter variation for three different ducts are presented. Details of the grid generation process for flow computations are also discussed. The framework proposed is applicable and relevant for numerical optimization studies of inlet ducts of practical interest.
Source Title: Collection of Technical Papers - AIAA Applied Aerodynamics Conference
URI: http://scholarbank.nus.edu.sg/handle/10635/116786
ISBN: 1563478129
ISSN: 10485953
Appears in Collections:Staff Publications

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