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http://dx.doi.org/10.5139/JKSAS.2003.31.1.001

The Optimum Design of Airfoil Shape with Parallel Computation  

Jo,Jang-Geun (부산대학교 기계공학과 대학원)
Park,Won-Gyu (부산대학교 기계공학부)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.31, no.1, 2003 , pp. 1-7 More about this Journal
Abstract
The aerodynamic optimization method for airfoil design was described in this paper. The Navier-Stokes equations were solved to consider the viscous flow information around an airfoil. The Modified Method of Feasible Direction(MMFD) was used for sensitivity analysis and the polynomial interpolation was used for distance calculation of the minimization. The Message Passing Interface(MPI) library of parallel computation was adopted to reduce the computation time of flow solver by decomposing the entire computational domain into 8 sub-domains and one-to-one allocating 8 processors to 8 sub-domains. The parallel computation was also used to compute the sensitivity analysis by allocating each search direction to each processor. The present optimization reduced the drag of airfoil while the lift is maintained at the tolerable design value.
Keywords
Navier-Stokes Equations; Design Optimization; Modified Method of Feasible Direction; Parallel Computation; Domain Decomposition Method;
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