TWO-OBJECTIVE OPTIMIZATION OF AERODYNAMIC SHAPES USING GRAVITATIONAL SEARCH ALGORITHM

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HOSEYNIPOOR MAHDI; MALEK JAFARIAN MAJID; SAFAVINEJAD ALI

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Journal: Modares Mechanical Engineering Year:2017 | Volume:17 | Issue:5 Page(s): 211-220

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Title

TWO-OBJECTIVE OPTIMIZATION OF AERODYNAMIC SHAPES USING GRAVITATIONAL SEARCH ALGORITHM

Author(s)

HOSEYNIPOOR MAHDI | MALEK JAFARIAN MAJID | SAFAVINEJAD ALI | Issue Writer Certificate

Keywords

TWO-OBJECTIVE OPTIMIZATIONQ2

GRAVITATIONAL SEARCH ALGORITHMQ1

PARTICLE SWARM OPTIMIZATIONQ1

PARSEC METHODQ2

2D COMPRESSIVE NAVIER-STOKES EQUATIONSQ1

Abstract

Gravitational search algorithm (for the first time) has been used for TWO-OBJECTIVE OPTIMIZATION of airfoil shape, in this article.2D compressible Navier-Stokes equations with Spalart-Allmaras model has been used to simulate viscous and turbulent flow. First, efficiency and accuracy of the optimizer sets have been evaluated using inverse optimization. Objective functions were difference between drag and lift with their corresponding values of the NACA0012 objective airfoil, as a set of airfoils was randomly chosen as starter airfoils in this case, and the aim was to obtain the airfoils that satisfy the considered objective functions. In direct optimization, GRAVITATIONAL SEARCH ALGORITHM which has been used in the present work, has achieved proper parameters (related to the PARSEC METHOD) and consequently has found optimized airfoils with maximum lift and minimum drag objective functions. This algorithm starts to solve using a set of airfoils and it is directed towards the airfoils that provide the mentioned objective functions. Comparison of the results (Pareto fronts) shows better and more proper performance of the GRAVITATIONAL SEARCH ALGORITHM rather than PARTICLE SWARM OPTIMIZATION algorithm and former researches (done using other meta-heuristic algorithms) for aerodynamic optimizations.

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APA: Copy

HOSEYNIPOOR, MAHDI, MALEK JAFARIAN, MAJID, & SAFAVINEJAD, ALI. (2017). TWO-OBJECTIVE OPTIMIZATION OF AERODYNAMIC SHAPES USING GRAVITATIONAL SEARCH ALGORITHM. MODARES MECHANICAL ENGINEERING, 17(5 ), 211-220. SID. https://sid.ir/paper/179178/en

Vancouver: Copy

HOSEYNIPOOR MAHDI, MALEK JAFARIAN MAJID, SAFAVINEJAD ALI. TWO-OBJECTIVE OPTIMIZATION OF AERODYNAMIC SHAPES USING GRAVITATIONAL SEARCH ALGORITHM. MODARES MECHANICAL ENGINEERING[Internet]. 2017;17(5 ):211-220. Available from: https://sid.ir/paper/179178/en

IEEE: Copy

MAHDI HOSEYNIPOOR, MAJID MALEK JAFARIAN, and ALI SAFAVINEJAD, “TWO-OBJECTIVE OPTIMIZATION OF AERODYNAMIC SHAPES USING GRAVITATIONAL SEARCH ALGORITHM,” MODARES MECHANICAL ENGINEERING, vol. 17, no. 5 , pp. 211–220, 2017, [Online]. Available: https://sid.ir/paper/179178/en

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