Reutter, Oliver and Hemmert-Pottmann, Stefan and Hergt, Alexander and Nicke, Eberhard (2014) Endwall Contouring and FilletmDesign for Reducing Losses and Homogenizing the Outflow of a Compressor Cascade. In: ASME Turbo Expo 2104. ASME. ASME Turbo Expo, 2014-06-16 - 2014-06-20, Dlandüsseldorf, Deutsch.
Full text not available from this repository.
Abstract
The following paper deals with the development of an optimized fillet and an endwall contour for reducing the total pressure loss and for homogenizing the outflow of a highly loaded cascade with a low aspect ratio. The NACA-65 K48 cascade profile without a fillet and without endwall contouring is used as a basis. Optimizations are performed using the DLR in-house tool AutoOpti and the RANS-solver TRACE. Three operating points at an inflow Mach number of 0.67 with different inflow angles are used to secure a wide operating range of the optimized design. At first only a fillet is optimized. The optimized fillet is small at the leading edge and rather high, wide and thick towards the trailing edge. It reduces the total pressure loss and homogenizes the outflow up to a blade height of 20 %. Following this a combined optimization of the endwall and the fillet is performed. The optimized contour leads to the development of a vortex, which changes the secondary flow in such a way, that the corner separation is reduced, which in turn significantly reduces the total pressure loss up to 16 % in the design operating point. The contour in the outflow region leads to a significant homogenization of the outflow in the near wall region.
Item URL in elib: | https://elib.dlr.de/90605/ | ||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||
Title: | Endwall Contouring and FilletmDesign for Reducing Losses and Homogenizing the Outflow of a Compressor Cascade | ||||||||||||||||||||
Authors: |
| ||||||||||||||||||||
Date: | 16 June 2014 | ||||||||||||||||||||
Journal or Publication Title: | ASME Turbo Expo 2104 | ||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||
Publisher: | ASME | ||||||||||||||||||||
Status: | Published | ||||||||||||||||||||
Keywords: | turbomachinery, compressor,endwall, contouring,shaping,optimization,cascade,cfd,angle homogenization | ||||||||||||||||||||
Event Title: | ASME Turbo Expo | ||||||||||||||||||||
Event Location: | Dlandüsseldorf, Deutsch | ||||||||||||||||||||
Event Type: | international Conference | ||||||||||||||||||||
Event Start Date: | 16 June 2014 | ||||||||||||||||||||
Event End Date: | 20 June 2014 | ||||||||||||||||||||
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 (old) | ||||||||||||||||||||
Location: | Köln-Porz | ||||||||||||||||||||
Institutes and Institutions: | Institute of Propulsion Technology > Fan and Compressor | ||||||||||||||||||||
Deposited By: | Reutter, Oliver | ||||||||||||||||||||
Deposited On: | 16 Sep 2014 15:05 | ||||||||||||||||||||
Last Modified: | 24 Apr 2024 19:56 |
Repository Staff Only: item control page