Investigating the Effect of Rotor Design Changes on Mechanical Losses Due to Rotor-Fluid Interaction-Reference-Cited by-同舟云学术

Investigating the Effect of Rotor Design Changes on Mechanical Losses Due to Rotor-Fluid Interaction

Published:2022-11-01 Issue:3 Volume:72 Page:71-80
ISSN:2450-5471
Container-title:Strojnícky časopis - Journal of Mechanical Engineering
language:en
Short-container-title:

Author:

Kudláček Petr¹,Novotný Pavel¹,Vacula Jiří¹,Kocman František¹

Affiliation:

1. Faculty of Mechanical Engineering, Brno University of Technology , Department of Automotive and Material Handling Engineering , Technická 2896/2, 616 69 Brno , Czech Republic

Abstract

Abstract The overall efficiency of high-speed rotating machines depends largely on their mechanical efficiency. Mechanical efficiency is not just a matter of bearing losses, but includes all interactions of the rotor with the environment. Analytical and empirical descriptions of turbulent or laminar flow around rotating surfaces have been used to estimate the mechanical losses of a turbocharger rotor based on geometric parameters and operating conditions. Based on the knowledge of the effect of each parameter, design changes to the rotor were proposed. The positive effect of simple design modifications on mechanical losses was experimentally verified by measurements on a test turbocharger.

Publisher

Walter de Gruyter GmbH

Subject

Mechanical Engineering

Link

https://www.sciendo.com/pdf/10.2478/scjme-2022-0042

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