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Schnoes, Markus and Nicke, Eberhard (2016) A Database of Optimal Airfoils for Axial Compressor Throughflow Design. ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition, 13.-17. Juni 2016, Seoul, Südkorea.
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Abstract
This text describes methods to organize a large set of optimized airfoils in a relational database and its application in throughflow design. Optimized airfoils are structured in five dimensions: inlet Mach number, blade stagger angle, pitch-chord ratio, maximum thickness-chord ratio and a parameter for aerodynamic loading. In this space, a high number of airfoil geometries is generated by means of numerical optimization. Each airfoil geometry is tailored to its specific requirements and optimized for a wide working range as well as low losses. During the optimization of each airfoil, performance in design and off-design conditions is evaluated with the blade-to-blade flow solver MISES. Together with airfoil geometry, the database stores automatically calibrated correlations which describe cascade performance in throughflow calculation. Based on these methods, two subsonic stages of a 4.5-stage transonic research compressor are redesigned. Performance of baseline and updated geometries is evaluated with 3D CFD. The overall approach offers accurate throughflow design incorporating optimized airfoil shapes and a fast transition from throughflow to 3D CFD design.
| Item URL in elib: | https://elib.dlr.de/111309/ | |||||||||
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| Document Type: | Conference or Workshop Item (Speech) | |||||||||
| Title: | A Database of Optimal Airfoils for Axial Compressor Throughflow Design | |||||||||
| Authors: |
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| Date: | June 2016 | |||||||||
| Refereed publication: | Yes | |||||||||
| Open Access: | No | |||||||||
| Gold Open Access: | No | |||||||||
| In SCOPUS: | No | |||||||||
| In ISI Web of Science: | No | |||||||||
| Status: | Published | |||||||||
| Keywords: | Axial Compressor Design; Throughflow; Optimization; Database | |||||||||
| Event Title: | ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition | |||||||||
| Event Location: | Seoul, Südkorea | |||||||||
| Event Type: | international Conference | |||||||||
| Event Dates: | 13.-17. Juni 2016 | |||||||||
| 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: | Schnös, Markus | |||||||||
| Deposited On: | 01 Mar 2017 11:31 | |||||||||
| Last Modified: | 01 Mar 2017 11:31 |
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