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    2D Viscous Aerodynamic Shape Design Optimization for Turbine Blades Based on Adjoint Method

    Source: Journal of Turbomachinery:;2011:;volume( 133 ):;issue: 003::page 31014
    Author:
    Haitao Li
    ,
    Liming Song
    ,
    Yingchen Li
    ,
    Zhenping Feng
    DOI: 10.1115/1.4001234
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: This paper presents an adjoint optimization technique and its application to the design of a transonic turbine cascade. Capable of a quick and exact sensitivity analysis and using little computational resources, the adjoint method has been a focus of research in aerodynamic shape design optimization. The goal of this work is to extend the adjoint method into turbomachinery design applications for viscous and compressible flow, and to further improve the aerodynamic performance. In the work, the minimization of the entropy generation rate with the mass flow rate constraint was considered as the cost function of the optimization, and was applied in the direct design process. The adjoint boundary conditions of the corresponding cost function were derived in detail, using the nonslip boundary condition on the blade wall, while the flow viscous effect on the cascade inlet and outlet was neglected. Numerical techniques used in Computational Fluid Dynamics (CFD) were employed to solve the adjoint linear partial difference equations. With the solved adjoint variables, the final expression of the cost function gradient with respect to the design variables was formulated. Combined with quasi-Newton algorithm, an aerodynamic design approach based on the adjoint method for turbine blades was presented, which was independent of the Navier–Stokes solver being used. Finally, to validate the present optimization algorithm, the aerodynamic design cases of a transonic turbine blade with and without mass flow rate restriction were performed and analyzed.
    keyword(s): Flow (Dynamics) , Entropy , Turbine blades , Design , Optimization , Blades , Equations , Shapes , Boundary-value problems , Cascades (Fluid dynamics) AND Gradients ,
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      2D Viscous Aerodynamic Shape Design Optimization for Turbine Blades Based on Adjoint Method

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    http://yetl.yabesh.ir/yetl1/handle/yetl/147799
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    contributor authorHaitao Li
    contributor authorLiming Song
    contributor authorYingchen Li
    contributor authorZhenping Feng
    date accessioned2017-05-09T00:47:23Z
    date available2017-05-09T00:47:23Z
    date copyrightJuly, 2011
    date issued2011
    identifier issn0889-504X
    identifier otherJOTUEI-28774#031014_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/147799
    description abstractThis paper presents an adjoint optimization technique and its application to the design of a transonic turbine cascade. Capable of a quick and exact sensitivity analysis and using little computational resources, the adjoint method has been a focus of research in aerodynamic shape design optimization. The goal of this work is to extend the adjoint method into turbomachinery design applications for viscous and compressible flow, and to further improve the aerodynamic performance. In the work, the minimization of the entropy generation rate with the mass flow rate constraint was considered as the cost function of the optimization, and was applied in the direct design process. The adjoint boundary conditions of the corresponding cost function were derived in detail, using the nonslip boundary condition on the blade wall, while the flow viscous effect on the cascade inlet and outlet was neglected. Numerical techniques used in Computational Fluid Dynamics (CFD) were employed to solve the adjoint linear partial difference equations. With the solved adjoint variables, the final expression of the cost function gradient with respect to the design variables was formulated. Combined with quasi-Newton algorithm, an aerodynamic design approach based on the adjoint method for turbine blades was presented, which was independent of the Navier–Stokes solver being used. Finally, to validate the present optimization algorithm, the aerodynamic design cases of a transonic turbine blade with and without mass flow rate restriction were performed and analyzed.
    publisherThe American Society of Mechanical Engineers (ASME)
    title2D Viscous Aerodynamic Shape Design Optimization for Turbine Blades Based on Adjoint Method
    typeJournal Paper
    journal volume133
    journal issue3
    journal titleJournal of Turbomachinery
    identifier doi10.1115/1.4001234
    journal fristpage31014
    identifier eissn1528-8900
    keywordsFlow (Dynamics)
    keywordsEntropy
    keywordsTurbine blades
    keywordsDesign
    keywordsOptimization
    keywordsBlades
    keywordsEquations
    keywordsShapes
    keywordsBoundary-value problems
    keywordsCascades (Fluid dynamics) AND Gradients
    treeJournal of Turbomachinery:;2011:;volume( 133 ):;issue: 003
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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