کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
521957 | 867799 | 2008 | 22 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Acceleration techniques for reduced-order models based on proper orthogonal decomposition Acceleration techniques for reduced-order models based on proper orthogonal decomposition](/preview/png/521957.png)
This paper presents several acceleration techniques for reduced-order models based on the proper orthogonal decomposition (POD) method. The techniques proposed herein are: (i) an algorithm for splitting the database of snapshots generated by the full-order model; (ii) a method for solving quasi-symmetrical matrices; (iii) a strategy for reducing the frequency of the projection. The acceleration techniques were applied to a POD-based reduced-order model of the two-phase flows in fluidized beds. This reduced-order model was developed using numerical results from a full-order computational fluid dynamics model of a two-dimensional fluidized bed. Using these acceleration techniques the computational time of the POD model was two orders of magnitude shorter than the full-order model.
Journal: Journal of Computational Physics - Volume 227, Issue 16, 10 August 2008, Pages 7791–7812