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Autor: Roberto Navarro García
ISBN-13: 9783319722474
Einband: Book
Seiten: 149
Gewicht: 414 g
Format: 241x164x17 mm
Sprache: Englisch

Predicting Flow-induced Acoustics at Near-Stall Conditions in an Automotive Turbocharger Compressor

Springer Theses
A Numerical Approach
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This thesis offers new insights into the fluid flow behavior of automotive centrifugal compressors operating under near-stall conditions. Firstly it discusses the validation of three-dimensional computational fluid dynamics (CFD) unsteady simulations against acoustic experimental measurements using an original procedure based on plane wave pressure decomposition. It then examines the configuration of the CFD cases, highlighting the key parameters needed for a successful calculation. Moreover, it describes both the compressor mean and unsteady flow field from best-efficiency to near-surge operating points. Lastly, it provides readers with explanations of the various phenomena that arise when the mass flow rate is reduced and the compressor is driven to poor and noisy performance. Written for students, researchers and professionals who want to improve their understanding of the complex fluid flow behavior in centrifugal compressors, the thesis offers valuable practical insights into reducing the acoustic emissions of turbochargers.
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nt phenomena that produce poor and/or noisy compressor performance
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Introduction ._Methodology for experimental validation ._ In uence of tip clearance on ow behavior and noise generation.- Sensitivity of compressor noise prediction to numerical setup._ Compressor mean ow field at near-stall conditions ._ Compressor aerocoustics at near-stall conditions .- Concluding remarks .

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Autor: Roberto Navarro García
ISBN-13 :: 9783319722474
ISBN: 3319722476
Erscheinungsjahr: 18.01.2018
Verlag: Springer-Verlag GmbH
Gewicht: 414g
Seiten: 149
Sprache: Englisch
Sonstiges: Buch, 241x164x17 mm, Bibliographie