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

A Numerical Approach

  • Roberto Navarro García
Book
  • 2.7k Downloads

Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xx
  2. Roberto Navarro García
    Pages 1-11
  3. Roberto Navarro García
    Pages 13-40
  4. Roberto Navarro García
    Pages 91-112
  5. Roberto Navarro García
    Pages 113-128
  6. Roberto Navarro García
    Pages 129-136
  7. Back Matter
    Pages 137-149

About this book

Introduction

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.

Keywords

StarCCM+ for Turbomachinery Turbocharger CFD Postprocessing URANS vs DES Turbulence Models Compressor Tip Clearance Flow 3D CFD Simulation Compressor Whoosh Noise Rotating Stall Noise Generation Centrifugal Compressors Near-surge Conditions Compressor Performance Compressor Acoustic Signature

Authors and affiliations

  • Roberto Navarro García
    • 1
  1. 1.CMT-Motores TérmicosUniversitat Politècnica de ValènciaValenciaSpain

Bibliographic information

  • DOI https://doi.org/10.1007/978-3-319-72248-1
  • Copyright Information Springer International Publishing AG 2018
  • Publisher Name Springer, Cham
  • eBook Packages Engineering Engineering (R0)
  • Print ISBN 978-3-319-72247-4
  • Online ISBN 978-3-319-72248-1
  • Series Print ISSN 2190-5053
  • Series Online ISSN 2190-5061
  • Buy this book on publisher's site
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