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.
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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|
|Date:||7 January 2006|
|Journal or Publication Title:||ASME Turbo Expo 2006: Power for Land Sea and Air|
|In ISI Web of Science:||No|
|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|
|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|
|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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