Structural Optimization of non-Newtonian Microfluidics

Kristian Ejlebjærg Jensen, Fridolin Okkels

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    We present results for topology optimization of a non-Newtonian rectifier described with a differential constitutive model. The results are novel in the sense that a differential constitutive model has not been combined with topology optimization previously. We find that it is necessary to apply a filter on the design variables based on a Helmholtz-type differential equation and we try to vary the filter length throughout the optimization in order to ensure compatibility with a convex interpolation between the inverse permeability and the design variables, which is popular within topology optimization of fluids. We test the method on a microfluidic rectifier and find solutions topologically different from experimentally realized designs.
    Original languageEnglish
    Title of host publication9. World Congress on Structural and Multidisciplinary Optimization : Book of abstracts and CD-rom proceedings
    Publication date2011
    Publication statusPublished - 2011
    Event9th World Congress on Structural and Multidisciplinary Optimization - Shizuoka, Japan
    Duration: 13 Jun 201117 Jun 2011
    Conference number: 9


    Conference9th World Congress on Structural and Multidisciplinary Optimization


    • Helmholtz density filter
    • Log conformation
    • Rectifier
    • Non-Newtonian


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