contributor author | Michele Marconcini | |
contributor author | Seiichi Ibaraki | |
contributor author | Filippo Rubechini | |
contributor author | Andrea Arnone | |
date accessioned | 2017-05-09T00:30:55Z | |
date available | 2017-05-09T00:30:55Z | |
date copyright | January, 2008 | |
date issued | 2008 | |
identifier issn | 0889-504X | |
identifier other | JOTUEI-28743#011010_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/139537 | |
description abstract | A three-dimensional Navier-Stokes solver is used to investigate the flow field of a high-pressure ratio centrifugal compressor for turbocharger applications. Such a compressor consists of a double-splitter impeller followed by a vaned diffuser. The inlet flow to the open shrouded impeller is transonic, thus giving rise to interactions between shock waves and boundary layers and between shock waves and tip leakage vortices. These interactions generate complex flow structures which are convected and distorted through the impeller blades. Detailed laser Doppler velocimetry flow measurements are available at various cross sections inside the impeller blades highlighting the presence of low-velocity flow regions near the shroud. Particular attention is focused on understanding the physical mechanisms which govern the flow phenomena in the near shroud region. To this end numerical investigations are performed using different tip clearance modelizations and various turbulence models, and their impact on the computed flow field is discussed. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Numerical Investigation of a Transonic Centrifugal Compressor | |
type | Journal Paper | |
journal volume | 130 | |
journal issue | 1 | |
journal title | Journal of Turbomachinery | |
identifier doi | 10.1115/1.2752186 | |
journal fristpage | 11010 | |
identifier eissn | 1528-8900 | |
keywords | Flow (Dynamics) | |
keywords | Turbulence | |
keywords | Compressors | |
keywords | Impellers | |
keywords | Clearances (Engineering) | |
keywords | Blades | |
keywords | Shock waves | |
keywords | Leakage | |
keywords | Vortices | |
keywords | Diffusers | |
keywords | Cross section (Physics) AND Mechanisms | |
tree | Journal of Turbomachinery:;2008:;volume( 130 ):;issue: 001 | |
contenttype | Fulltext | |