elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Optimizing surge margin and efficiency of a transonic compressor

Goinis, Georgios and Nicke, Eberhard (2016) Optimizing surge margin and efficiency of a transonic compressor. In: Proceedings of ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition, 13.-17. Jun. 2016, Seoul, Südkorea.

Full text not available from this repository.

Abstract

It has been shown in several cases that casing treatment can improve the surge margin of a compressor. The question that is often left unanswered when designing and optimizing a casing treatment for a given compressor stage is whether the casing treatment can still improve the perfor- mance and surge margin when used on an aerodynamically improved rotor. The current work includes the influence of the rotor geometry and casing geometry in the analysis. Several opti- mizations with equal objectives, to improve surge margin and efficiency, were performed. First the different compo- nents were optimized separately. The possible impact of optimizing the rotor, the casing geometry and the casing treatment on surge margin and efficiency are compared in terms of global performance and aerodynamic effects. It is then analyzed how combinations of optimized geometries perform. Of particular interest is how the circumferential grooves perform when used in combination with the opti- mized blade geometry. The optimizations were performed using state of the art CFD and optimization procedures. Constraints on boundary conditions, mass flow rates and stresses were applied in order not to change the behavior of the compressor at design point significantly or to deteriorate the structural mechanics.

Item URL in elib:https://elib.dlr.de/105136/
Document Type:Conference or Workshop Item (Speech)
Title:Optimizing surge margin and efficiency of a transonic compressor
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Goinis, GeorgiosGeorgios.Goinis (at) dlr.deUNSPECIFIED
Nicke, EberhardEberhard.Nicke (at) dlr.deUNSPECIFIED
Date:June 2016
Journal or Publication Title:Proceedings of ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Casing Treatment, Transonic Compressor Aerodynamics, Optimization
Event Title:ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition
Event Location:Seoul, Südkorea
Event Type:international Conference
Event Dates:13.-17. Jun. 2016
Organizer:ASME
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:propulsion systems
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Fan and Compressor Technologies
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology > Fan and Compressor
Deposited By: Goinis, Georgios
Deposited On:11 Jul 2016 15:10
Last Modified:11 Jul 2016 15:10

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.