Numerical Investigation of Impeller-Vaned Diffuser Interaction in a Centrifugal Compressor
| Autor: | M Marini, Carlo Cravero, Davide Marsano, Omar Milingi, Matteo Bardelli |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Computer science
020209 energy Reference data (financial markets) Flow (psychology) 02 engineering and technology impeller–diffuser interaction Computational fluid dynamics lcsh:Technology Diffuser (thermodynamics) lcsh:Chemistry Impeller 0203 mechanical engineering Turbomachinery 0202 electrical engineering electronic engineering information engineering General Materials Science centrifugal compressor Instrumentation Centrifugal compressor CFD Impeller-diffuser interaction lcsh:QH301-705.5 Fluid Flow and Transfer Processes business.industry lcsh:T Process Chemistry and Technology General Engineering Experimental data Mechanics lcsh:QC1-999 Computer Science Applications 020303 mechanical engineering & transports lcsh:Biology (General) lcsh:QD1-999 lcsh:TA1-2040 business lcsh:Engineering (General). Civil engineering (General) lcsh:Physics |
| Zdroj: | Applied Sciences, Vol 9, Iss 8, p 1619 (2019) Applied Sciences Volume 9 Issue 8 |
| ISSN: | 2076-3417 |
| Popis: | The work presents the results of a CFD campaign to investigate the impeller&ndash diffuser interaction in a centrifugal compressor, taking advantage of experimental data from the open literature. Previous studies on the same turbomachine focused on an experimental investigation to understand the flow interaction between the impeller and the vaned diffuser. These experimental data have been used to validate the simulation approach and discuss its results. Several CFD models with increasing complexity have been developed to take into account different aspects. The steady analysis has been performed to highlight the potentials and limitations of such models and to carry out a first study of the flow. In order to analyze the impeller&ndash diffuser interaction, a further model for the unsteady analysis has been set up. Two different operating points have been investigated: one on the surge limit and another in a more stable working zone. A good agreement with the experimental reference data has been obtained with the unsteady analysis and some insights in the complex flow field are deduced. |
| Databáze: | OpenAIRE |
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