12th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference 2008
DOI: 10.2514/6.2008-5965
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Proper Orthogonal Decomposition-Based Reduced Order Model of a Hydraulic Mixing Nozzle

Abstract: In this work, a reduced order model is constructed for a hydraulic mixing nozzle using proper orthogonal decomposition. Data from several CFD computations are collected to provide the data for input to the reduced order model and flow is projected onto the most dominant principal axes to study the flow structures. Flow structures are compared for the original and optimized shape nozzles to study the effect of changing the nozzle's shape on the flow characteristics. This study also addresses issues regarding th… Show more

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Cited by 5 publications
(9 citation statements)
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“…In the past ROMs have been used to predict limited geometry changes of designs that could be defined by a single variable (Hay et al 2010, McCorkle andBryden 2011) or an equation to describe a curve (Suram, McCorkle, Bryden 2008, Raghavan et al 2013), but the geometries in this research were too complicated to be defined by either method. Zonal models have been used in concert with reduced order models that improved the accuracy of results for cases of shape optimization (Iuliano and Quagliarella 2013).…”
Section: Design Applicationmentioning
confidence: 99%
“…In the past ROMs have been used to predict limited geometry changes of designs that could be defined by a single variable (Hay et al 2010, McCorkle andBryden 2011) or an equation to describe a curve (Suram, McCorkle, Bryden 2008, Raghavan et al 2013), but the geometries in this research were too complicated to be defined by either method. Zonal models have been used in concert with reduced order models that improved the accuracy of results for cases of shape optimization (Iuliano and Quagliarella 2013).…”
Section: Design Applicationmentioning
confidence: 99%
“…Due to these varying mixing impeller geometries the meshes used to conduct these simulations correspondingly varied in size. In the past ROMs have been used to predict limited geometry changes of designs that could be defined by a single variable 57 or an equation to describe a curve 58 but the geometries in this research were too complicated to be defined by either method. Proper orthogonal decomposition requires that ever snapshot inputted have exactly the same number of nodes in the mesh.…”
Section: Design Applicationmentioning
confidence: 99%
“…One challenge is the application of POD to a geometry change. In the past ROMs have been used to predict limited geometry changes of designs that could be defined by a single variable (Hay et al 2010, McCorkle andBryden 2011) or an equation to describe a curve (Suram, McCorkle, Bryden 2008, Raghavan et al 2013), but the geometries in this research were too complicated to be defined by either method. Zonal models have been used in concert with reduced order models that improved the accuracy of results for cases of shape optimization (Iuliano and Quagliarella 2013).…”
Section: Design Applicationmentioning
confidence: 96%