| Wind energy is becoming one of the most popular of the new energy because of its great advantages and development potential. Wind energy technology is developing rapidly. But the wind turbine blade aerodynamic performance also has us to continue to optimizing its performance. While aerodynamic performance of the blade is close to its airfoil. So the development and improvement of wind turbine airfoil aerodynamic performance have a major significance for the improvement of the aerodynamic performance of wind turbine blades and wind turbine efficiency .In this paper, to optimize the aerodynamic characteristics of airfoil design, based on multidisciplinary design optimization framework iSIHGT, CFD software, and genetic optimization algorithm. In the optimization process, for the first, genetic algorithm optimization model is established based on the genetic algorithm and verify the reliability of the algorithm. Then the aerodynamic performance of the airfoil is simulated based on the Fluent CFD software and using different turbulence models. The results of numerical method are compared with experimental results to determine the appropriate and accurate method. On this basis, the geometric modeling, meshing, flow field calculation and algorithm optimization are integrated respectively by iSIHGT software. Then we can have a optimized smooth airfoil curve and the aerodynamic airfoil performance of the optimized airfoil is increased significantly. This method also can solve the problem of the complex flow field and shape optimizationThe results of this study show that: based on multidisciplinary design optimization framework iSIHGT, CFD software and genetic algorithm optimization method, it is suitable for the optimization of the aerodynamic performance of airfoil. This new and reliable method provide a convenient way for the development of wind turbine designed and is significant for the development of China's independent intellectual property rights with special airfoil wind turbine. |
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