Title of article
Augmented proper orthogonal decomposition for problems with moving discontinuities
Author/Authors
Brenner، نويسنده , , Thomas A. and Fontenot، نويسنده , , Raymond L. and Cizmas، نويسنده , , Paul G.A. and OʹBrien، نويسنده , , Thomas J. and Breault، نويسنده , , Ronald W.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2010
Pages
8
From page
78
To page
85
Abstract
A method is proposed to augment the proper orthogonal decomposition basis functions with discontinuity modes to better capture moving discontinuities in reduced-order models. Moving discontinuities can be shocks in unsteady gas flows or bubbles in multiphase flow. The method is shown to work for a simple test problem using the first-order wave equation. A method for detecting discontinuities numerically is developed using mathematical morphology. This method is shown to properly identify the edges of bubbles in multiphase flow.
Keywords
Proper orthogonal decomposition , Reduced-Order Model , Multiphase flow , morphology
Journal title
Powder Technology
Serial Year
2010
Journal title
Powder Technology
Record number
1699689
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