SOLIDWORKS 2015, Rendering, October 2nd, 2014 Airplane Model. SOLIDWORKS 2014, February 2nd, 2016 Plane Wing & Airfoil. So the optimized airfoil presented here is propsed as the selected airfoil reference for the high-efficiency propeller of low dynamic vehicles in stratosphere. SOLIDWORKS 2014, March 26th, 2016 NACA 4415. The aerodynamic characteristic results of the optimized airfoil S1223_OPT2 meet the design requirements. 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. Figure 8 and 9 depicts the effect of differently located damages on Lift/Drag ratio at a wide range of angles-of-attack for the FX63-137 and S1223 airfoils respectively. CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract The range of Reynolds number under studied by airfoil aerodynamics problem for the application of the propeller of low-dynamic aircrafts in Near Space is between 10 5 to 10 6, which belongs to the scope of low Reynolds number. The geometry of the hydrofoil blade is designed through a suitable airfoil profile and then studied carefully by means of Computational Fluid Dynamics (CFD) in order to check its hydrodynamic behavior, i.e. stall angle-of-attack increases on the both airfoils. So the optimized airfoil presented here is propsed as the selected airfoil reference for the high-efficiency propeller of low dynamic vehicles in stratosphere.ĪB - 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. This work presents a numerical analysis of the ability of the high lift airfoil profile Selig S1223 for working as hydrofoil under water conditions. The aerodynamic characteristic results of the optimized airfoil S1223_OPT2 meet the design requirements. Usability of the Selig S1223 Profile Airfoil as a High Lift Hydrofoil for Hydrokinetic Application S. N2 - 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. T1 - Multi-objective optimization design of lowreynolds- number airfoils S1223