| An Extraction of the Dominant Rotor-Stator Interaction Modes by the Use of Proper Orthogonal Decomposition （POD） |
| |
| 引用本文： | I. TREBINJAC N. ROCHUON G. BILLONNET Ecole Centrale de Lyon,Laboratoire de Mecanique des Fluides et d''Acoustique,UMR CNRS 5509 69131 Ecully Cedex,France ONERA,Departement d''Aerodynamique Appliquee,92322 Chtillon Cedex,France. An Extraction of the Dominant Rotor-Stator Interaction Modes by the Use of Proper Orthogonal Decomposition （POD）[J]. 热科学学报(英文版), 2006, 15(2): 109-114. DOI: 10.1007/s11630-006-0109-4 |
| |
| 作者姓名： | I. TREBINJAC N. ROCHUON G. BILLONNET Ecole Centrale de Lyon Laboratoire de Mecanique des Fluides et d''Acoustique UMR CNRS 5509 69131 Ecully Cedex France ONERA Departement d''Aerodynamique Appliquee 92322 Chtillon Cedex France |
| |
| 作者单位： | [1]Ecole centrale de Lyon, Laboratoire de Mécanique des Fluides et d＇Acoustique, UMR CNRS 5509 69131 Ecully Cedex, France [2]ONERA, Département d＇Aérodynamique Appliquée, 92322 Chatillon Cedex, France |
| |
| 摘 要： | The Proper Orthogonal Decomposition method is applied to the instantaneous velocity field within the rotor-stator inter-row region of a high-speed high-pressure centrifugal compressor. The processed data come from experiments and numerical simulations. In comparison with a Fourier transform, the POD gives the best modal approximation for both initial fields, in terms of the energy expressed on any given number of modes to be taken into account: to reach 98% of the total energy of the velocity field, the required number of POD modes is around nine times smaller than the number of Fourier harmonics. The individual POD modes are given and show that the unsteady rotor-stator interaction is already present in the very first modes.
|
| 关 键 词： | 转子定子交互作用 固有正交分解 POD 正交分解法 离心式压气机 |
An extraction of the dominant rotor-stator interaction modes by the use of Proper Orthogonal Decomposition (POD) |
| |
| N. Rochuon,I. Trébinjac,G. Billonnet. An extraction of the dominant rotor-stator interaction modes by the use of Proper Orthogonal Decomposition (POD)[J]. Journal of Thermal Science, 2006, 15(2): 109-114. DOI: 10.1007/s11630-006-0109-4 |
| |
| Authors: | N. Rochuon I. Trébinjac G. Billonnet |
| |
| Affiliation: | (1) Ecole Centrale de Lyon, Laboratoire de Mécanique des Fluides et d’Acoustique, UMR CNRS 5509, 69131 Ecully Cedex, France;(2) Département d’Aérody namique Appliquée, ONERA, 92322 Chatillon Cedex, France |
| |
| Abstract: | The Proper Orthogonal Decomposition method is applied to the instantaneous velocity field within the rotor-stator inter-row region of a high-speed high-pressure centrifugal compressor. The processed data come from experiments and numerical simulations. In comparison with a Fourier transform, the POD gives the best modal approximation for both initial fields, in terms of the energy expressed on any given number of modes to be taken into account: to reach 98% of the total energy of the velocity field, the required number of POD modes is around nine times smaller than the number of Fourier harmonics. The individual POD modes are given and show that the unsteady rotor-stator interaction is already present in the very first modes. |
| |
| Keywords: | rotor stator interaction proper orthogonal decomposition POD. |
| 本文献已被 维普 万方数据 SpringerLink 等数据库收录！ |
