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作者:M. Salman Siddiqui , Sidra Tul Muntaha Latif , Muhammad Saeed ...
来源:[J].International Journal of Heat and Fluid Flow(IF 1.581), 2020, Vol.82
摘要:... The present work focuses on one such method for high-fidelity simulations that combines finite volume strategy with proper orthogonal decomposition and Galerkin projection to test reduced-order models for high Reynolds number flow applications. The model is first benchmarked ...
作者:Yunpeng Xue , Chetan Kumar , Soon-Kong Lee ...
来源:[J].International Journal of Heat and Fluid Flow(IF 1.581), 2020, Vol.82
摘要:... In this paper, a snapshot Proper Orthogonal Decomposition (POD) technique is used to capture the dominant large-scale coherent structures (from inspection of eigenvalue or energy distributions) and to improve vortex centre identification. The POD reconstructed velocity fi...
作者:Baozou Xu , Xiaohua Zhang
来源:[J].Advances in Difference Equations(IF 0.76), 2019, Vol.2019 (1), pp.1-22Springer
摘要:Abstract(#br)In this paper, the combination of efficient sixth-order compact finite difference scheme (E-CFDS6) based proper orthogonal decomposition and Strang splitting method (E-CFDS6-SSM) is constructed for the numerical solution of the multi-dimensional parabolic equation (M...
作者:Baozou Xu , Xiaohua Zhang
来源:[J].Boundary Value Problems(IF 0.922), 2019, Vol.2019 (1), pp.1-22Springer
摘要:... Our approach combines CFDS4 with proper orthogonal decomposition (POD) technique to improve the computational efficiency of the CFDS4. The validation of the proposed method is demonstrated by four test problems. The numerical solutions are compared with the exact solutions an...
作者:Baozou Xu , Xiaohua Zhang
来源:[J].Boundary Value Problems(IF 0.922), 2019, Vol.2019 (1), pp.1-22DOAJ
摘要:... Our approach combines CFDS4 with proper orthogonal decomposition (POD) technique to improve the computational efficiency of the CFDS4. The validation of the proposed method is demonstrated by four test problems. The numerical solutions are compared with the exact solutions an...
作者:Gurlek Cahit
来源:[J].Thermal Science(IF 0.838), 2019, Vol.23 (2 Part A), pp.417-426DOAJ
摘要:... In addition, the coherent flow structures were extracted by means of the proper orthogonal decomposition method. The flow field is characterized by a large re-circulation region and a secondary clockwise-rotating corner vortex. The high vorticity, fluctuation velocity and she...
作者:Han Xu , Anren Yao , Chunde Yao ...
来源:[J].Energy(IF 3.651), 2017, Vol.128, pp.813-829Elsevier
摘要:... Proper orthogonal decomposition was developed to extract the main pressure distributions so that the positions where energy converges can be found and the convergence modes can be recognized. Results show that energy convergence could occur in combustion chambers when severe ...
作者:Ren-Hui Zhang , Rong Guo , Jun-Hu Yang ...
来源:[J].Chinese Journal of Mechanical Engineering(IF 0.263), 2017, Vol.30 (4), pp.1025-1031Springer
摘要:To improve the accuracy and reduce the calculation cost for the inverse problem of centrifugal pump impeller, the new inverse method based on proper orthogonal decomposition (POD) is proposed. The pump blade shape is parameterized by quartic Bezier curve, and the initial snapshot...
作者:Noura Ouhbi , Charles Voivret , Guillaume Perrin ...
来源:[J].Granular Matter(IF 1.504), 2017, Vol.19 (4)Springer
摘要:Based on proper orthogonal decomposition (POD), a new method is presented in order to statistically characterize arbitrary particle shapes using an optimal choice of shape functions identified on a set of 1000 digitized railway ballast particles obtained through 3D Scan. The coef...
作者:Chao Zhang , Zhenhua Wan , Dejun Sun
来源:[J].Applied Mathematics and Mechanics(IF 0.647), 2017, Vol.38 (5), pp.723-736Springer
摘要:The reduced-order model (ROM) for the two-dimensional supersonic cavity flow based on proper orthogonal decomposition (POD) and Galerkin projection is investigated. Presently, popular ROMs in cavity flows are based on an isentropic assumption, valid only for flows at low or moder...

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