Large Eddy Simulation of Compressible Transitional Cascade Flows (The Behaviors of Transitional Boundary Layer on a Blade Surface):(The Behaviors of Transitional Boundary Layer on a Blade Surface)
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概要
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Large-eddy simulation of compressible transitional flows in a low-pressure turbine cascade is performed by a 6th-order compact finite-difference and 10th-order filtering method. Numerical results without free-stream turbulence and those with about 5% free-stream turbulence are compared. Based on the computed results, detailed investigations are presented on the effects of the free-stream turbulence on the boundary layer transition, and on the behavior of the pressure waves that originate near the trailing-edge along with the effects on the separation/transition of the boundary layer. Also, based on Snapshot Proper Orthogonal Decomposition (POD) Analysis, dominant behaviors of the transitional boundary layers are investigated.
- 一般社団法人 日本機械学会の論文
著者
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Kato Chisachi
Institute Of Industrial Science The University Of Tokyo
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Matsuura Kazuo
Department Of Breast Oncology Saitama International Medical Center Saitama Medical University
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MATSUURA Kazuo
Department of Intelligent Machinery and Systems, Kyushu University
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- Large Eddy Simulation of Compressible Transitional Cascade Flows (The Behaviors of Transitional Boundary Layer on a Blade Surface):(The Behaviors of Transitional Boundary Layer on a Blade Surface)