Abstract
For the design of a high-performance propeller for low-dynamic aircraft in Near Space, it is very important to have low-Reynolds-number airfoils which are supposed to have high liftdrag ratio at cruising attack angle along with a good property of stall characteristics. The paper is having a hierarchical multi-objective optimization on the basis of the high-lift airfoil S1223 by combing direct search optimization algorithm EXTREM and airfoil flow field solver XFOIL to automatically and quick calculate aerodynamic performance function of airfoil by computer. The aerodynamic characteristic results of the optimized airfoil S1223_OPT2 meet the design requirements. So the optimized airfoil presented here is propsed as the selected airfoil reference for the high-efficiency propeller of low dynamic vehicles in stratosphere.
| Original language | English |
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| Pages | 916-925 |
| Number of pages | 10 |
| Publication status | Published - 24 Sept 2010 |
| Event | 27th Congress of the International Council of the Aeronautical Sciences 2010, ICAS 2010 - Nice, France Duration: 19 Sept 2010 → 24 Sept 2010 |
Conference
| Conference | 27th Congress of the International Council of the Aeronautical Sciences 2010, ICAS 2010 |
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| Abbreviated title | ICAS 2010 |
| Country/Territory | France |
| City | Nice |
| Period | 19/09/10 → 24/09/10 |
Keywords
- EXTREM
- low reynolds number airfoil
- multi-objective optimization
- aero-dynamic performance
- aerodynamic characteristics
- high-efficiency propellers
- airfoils