Proper orthogonal decomposition for time-dependent lid-driven cavity flows

Ahlman D.; Jackson J.; Kurdila A.; Shyy W.

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Proper orthogonal decomposition for time-dependent lid-driven cavity flows

机译：随时间变化的盖驱动腔流的正确正交分解

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Proper orthogonal decomposition (POD) is employed to study a time-dependent lid-driven cavity flow. Ensembles of data are compiled from transient solutions computed with different grids and Reynolds numbers. The POD bases are used to reconstruct the constituents of the ensemble. Error measures are used to evaluate the effectiveness of the method. The geometric locations of major errors and their dependency on Reynolds number are also investigated. The POD technique proves capable of capturing more than 99.7% of the kinetic energy, using the first three eigenmodes. The errors were found to be uniformly bounded, which validates the theory derived. [References: 22]

机译：适当的正交分解（POD）用于研究与时间有关的盖驱动腔流动。数据集合是根据使用不同网格和雷诺数计算的瞬态解进行编译的。 POD基础用于重建集合的组成部分。错误度量用于评估该方法的有效性。还研究了主要误差的几何位置及其对雷诺数的依赖性。 POD技术被证明能够使用前三个本征模式捕获超过99.7％的动能。发现误差是有界的，这验证了所推导的理论。 [参考：22]

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《Numerical Heat Transfer, Part B. Fundamentals: An International Journal of Computation and Methodology》 |2002年第4期|共22页
作者
Ahlman D.; Jackson J.; Kurdila A.; Shyy W.;
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正文语种 eng
中图分类热力工程、热机;
关键词
Low-dimensional models; Coherent structures; Dynamics;

机译：低维模型;相干结构;动力学;

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1. Proper orthogonal decomposition for time-dependent lid-driven cavity flows [J] . Ahlman D., Jackson J., Kurdila A., Numerical Heat Transfer, Part B. Fundamentals: An International Journal of Computation and Methodology . 2002,第4期

机译：随时间变化的盖驱动腔流的正确正交分解
2. Proper orthogonal decomposition and low-dimensional models for driven cavity flows [J] . Cazemier W., Veldman AEP., Verstappen RWCP. Physics of fluids . 1998,第7期

机译：驱动腔流动的正确正交分解和低维模型
3. Proper orthogonal decomposition of a fully confined cubical differentially heated cavity flow at Rayleigh number Ra = 10~9 [J] . R. Puragliesi, E. Leriche Computers & Fluids . 2012,第Null期

机译：瑞利数Ra = 10〜9时完全封闭的立方差分加热腔流的正交分解
4. Aeroacoustic Analysis of Cavity Flows Using Quadratic Stochastic Estimation Coupled with Proper Orthogonal Decomposition [C] . P. Druault, X. Gloerfelt, T. Mervant AIAA/CEAS Aeroacoustics Conference;AIAA Aeroacoustics Conference . 2009

机译：二次随机估计与正确正交分解相结合的腔体流动声学分析
5. Proper Orthogonal Decomposition Analysis of Lid-Driven Cavity Flows Containing Particle Suspensions [D] . Katiki, Nitin. 2019

机译：含悬浮液的盖驱动腔流的正确正交分解分析
6. Investigation of the Effects of Length to Depth Ratio on Open Supersonic Cavities Using CFD and Proper Orthogonal Decomposition [O] . Ibrahim Yilmaz, Ece Ayli, Selin Aradag 2013

机译：使用CFD和适当的正交分解研究长深比对开放超声腔的影响
7. Proper orthogonal decomposition and low-dimensional models for driven cavity flows [O] . Cazemier W, Verstappen R.W.C.P., Veldman A.E.P. 1998

机译：驱动腔流动的正确正交分解和低维模型

Proper orthogonal decomposition for time-dependent lid-driven cavity flows

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