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DESIGN OF A HIGHLY EFFICIENT LOW-NOISE FAN FOR ULTRA-HIGH BYPASS ENGINES

Kaplan, Burak and Nicke, Eberhard and Voss, Christian (2006) DESIGN OF A HIGHLY EFFICIENT LOW-NOISE FAN FOR ULTRA-HIGH BYPASS ENGINES. In: ASME Turbo Expo 2006: Power for Land Sea and Air (GT2006-90363). ASME Turbo Expo 2006: Power for Land Sea and Air, 2006-05-08, Barcelona, Spanien.

Full text not available from this repository.

Official URL: http://www.asme.org

Abstract

In order to achieve an environmental-friendly engine i.e. with more efficiency and less noise emission, a geared ultra-high bypass ratio fan test rig has been designed within the EU-funded project SILENCE®. Engine cycle requirements were untypical in terms of mass flow rate, pressure ratio and BPR. In order to reach the desired mass flow rate and simultaneously to avoid a strong interaction of the shocks with the boundary layer an S-shape leading edged rotor with forward sweep close to casing has been designed. Specific blade numbers for rotor and stator has been used to minimize the rotor-stator interaction noise. For the same purpose a backward swept bypass stator has been designed. There are two stators in the core duct in order to bring the flow to zero swirl which is a necessity for test rig measurements. The main design loop includes blade shape and the flow path optimization as well as the computation of stress distribution in all blades and the rotor disc. The fan is being manufactured from titanium because of its specific aeroelastic properties and stators are made of steel. The rig is scheduled to be tested in 2006 for its aerodynamic and aeroacoustic performance.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:DESIGN OF A HIGHLY EFFICIENT LOW-NOISE FAN FOR ULTRA-HIGH BYPASS ENGINES
Authors:
AuthorsInstitution or Email of Authors
Kaplan, BurakUNSPECIFIED
Nicke, EberhardUNSPECIFIED
Voss, ChristianUNSPECIFIED
Date:7 January 2006
Journal or Publication Title:ASME Turbo Expo 2006: Power for Land Sea and Air
Refereed publication:Yes
In ISI Web of Science:No
Editors:
EditorsEmail
ASME, UNSPECIFIED
Status:Published
Keywords:transonic fan, high bypass ratio, aerodynamic design, noise, cfd
Event Title:ASME Turbo Expo 2006: Power for Land Sea and Air
Event Location:Barcelona, Spanien
Event Type:international Conference
Event Dates:2006-05-08
Organizer:ASME
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignement
DLR - Program:no assignment
DLR - Research theme (Project):other
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology > Fan and Compressor
Deposited By: Rosemarie Fox
Deposited On:26 Jun 2007
Last Modified:15 Jan 2010 00:54

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