Author: Yinghui DaiPublisher:
ISBN:
Category : Compressors
Languages : en
Pages : 334
Book Description
Impeller-diffuser-volute Modeling and Flow Analysis Together with Test Validation
Author: Yinghui DaiPublisher:
ISBN:
Category : Compressors
Languages : en
Pages : 334
Book Description
Development of a Computer-aided Optimization Tool for Centrifugal Compressor Impellers
Author: Ying MaDissertation Abstracts International
Author: Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 796
Book Description
Study of Volute Design Methods with Emphasis on Wide Passage Volutes Typical of Slurry Pumps
Author: Randy J. KosmickiDesign and Test of Mixed-flow Impellers
Author: Joseph T. HamrickImpeller Volute and Diffuser Interaction
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 29
Book Description
The flow in centrifugal pumps is exceedingly complex, involving curvature, system rotation, separation, turbulence, and secondary flows. Moreover, the geometry is often asymmetric due to the volute shape. As a result, the relative motion between impeller and volute generates an unstableness which affects not only the overall pump performance, but is also responsible for pressure fluctuations, hydraulic noises and unforeseen hydrodynamic forces. These fluctuations not only generate noise and vibration that cause unacceptable levels of stress and reduce component life due to fatigue, but also introduce unfavourable characteristics of pump performance even at or near the design point. Experimental and numerical approaches contributed to the understanding of the highly complex flow interactions that occur in a centrifugal pump.
Flow Analysis of the Cleveland Clinic Centrifugal Pump
Author: Applied Mechanics Reviews
Author: International Aerospace Abstracts
Author: Predicting Flow-Induced Acoustics at Near-Stall Conditions in an Automotive Turbocharger Compressor
Author: Roberto Navarro GarcíaPublisher: Springer
ISBN: 3319722484
Category : Technology & Engineering
Languages : en
Pages : 164
Book Description
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.