Computational Investigation of the Vaneless Diffuser Flow Field PDF Download
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Author: Toshiyuki Sato
Publisher:
ISBN:
Category : Diffusers
Languages : en
Pages : 174
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Book Description
Author: Toshiyuki Sato
Publisher:
ISBN:
Category : Diffusers
Languages : en
Pages : 174
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Author: Michael Stephen Phillips
Publisher:
ISBN:
Category :
Languages : en
Pages : 164
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Author: Michael D. Hathaway
Publisher:
ISBN:
Category : Centrifugal compressors
Languages : en
Pages : 28
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Author: Moududur Rahman
Publisher:
ISBN:
Category : Diffusers
Languages : en
Pages : 258
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Book Description
This study is aimed at the development of a computational technique for the prediction of the flow field in wide angle diffusers. The finite element technique is used for the solution of the governing equations. A commercial software package, NISA/3DFlUID, modified for this specific application was used. The parameters affecting the flow field have been identified. For a wide range of variation of these parameters, the effects on the flow field have been examined. This investigation is an exhaustive and comprehensive numerical study of diffuser flows. Such a study will result in substantial improvement in the understanding of the anatomy of the flow field. The creation of the current knowledge base will also enable a judicious selection of diffusers for industrial applications. It was found that for laminar flow through wide angle diffusers the computational technique adequately predicted the qualitative and quantitative behavior of the flow field. Therefore new results, as predicted by the current computational technique have been presented. For example, it was found that the effective recirculation length varies exponentially with the angle of expansion of the diffuser. For turbulent flow the standard k-e model has been found to be qualitatively adequate in representing the flow field. However, the quantitative predictions are being compared with available experimental results and those obtained using other numerical schemes. A wide range of possibilities exist for the constants and boundary conditions employed in k-e modeling. Such a numerical experimentation requires deep understanding of the equations governing the flow field. The validity and/or adjustments of these constants and boundary conditions for diffuser flow are investigated.
Author:
Publisher:
ISBN:
Category : Military research
Languages : en
Pages : 252
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 492
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Author: Rene Van den Braembussche
Publisher: John Wiley & Sons
ISBN: 1119424097
Category : Technology & Engineering
Languages : en
Pages : 418
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Book Description
A comprehensive overview of fluid dynamic models and experimental results that can help solve problems in centrifugal compressors and modern techniques for a more efficient aerodynamic design. Design and Analysis of Centrifugal Compressors isacomprehensive overview of the theoretical fluid dynamic models describing the flow in centrifugal compressors and the modern techniques for the design of more efficient centrifugal compressors. The author — a noted expert in the field, with over 40 years of experience — evaluates relevant numerical and analytical prediction models for centrifugal compressors with special attention to their accuracy and limitations. Relevant knowledge from the last century is linked with new insights obtained from modern CFD. Emphasis is to link the flow structure, performance and stability to the geometry of the different compressor components. Design and Analysis of Centrifugal Compressors is an accessible resource that combines theory with experimental data and previous research with recent developments in computational design and optimization. This important resource Covers the basic information concerning fluid dynamics that are specific for centrifugal compressors and clarifies the differences with axial compressors Provides an overview of performance prediction models previously developed in combination with extra results from research conducted by the author Describes helpful numerical and analytical models for the flow in the different components in relation to flow stability, operating range and performance Includes the fundamental information for the aerodynamic design of more efficient centrifugal compressors Explains the use of computational fluid dynamics (CFD) for the design and analysis of centrifugal compressors Written for engineers, researchers and designers in industry as well as for academics specializing in the field, Design and Analysis of Centrifugal Compressors offers an up to date overview of the information needed for the design of more effective centrifugal compressors.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 836
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Book Description
Author: City University London
Publisher: Elsevier
ISBN: 178242170X
Category : Technology & Engineering
Languages : en
Pages : 784
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Book Description
This book contains the papers from the 2013 International Conference on Compressors and Their Systems, held from 9-10 September at City University London. The long-running conference series is the ultimate global forum for reviewing the latest developments and novel approaches in compressor research. High-quality technical papers are sourced from around the globe, covering technology development, operation, maintenance and reliability, safety and environmental impact, energy efficiency and carbon footprint, system integration and behaviour, upgrades and refurbishment, design and manufacture, education and professional development. All the papers are previously unpublished and constitute leading edge research. Presents leading edge developments in compressor technology Gives the latest prediction and modelling techniques Details the new technology and machinery
Author: Pradeep C. Babu Salapakkam
Publisher:
ISBN:
Category :
Languages : en
Pages : 256
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Book Description
