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- W2354541485 abstract "In order to reduce the drag and improve the overall aerodynamic performance of the double-hull airship,the experiment design and response surface method are used to optimize the ballonet shape on basis of three design parameters,including length-diameter ratio,width-thickness ratio and location of the maximum section.The method is based on the CFD results.Fifteen experiments are performed.Before the optimization,the zero-lift drag coefficient is 0.029 8,and after the optimization,the zero-lift drag coefficient is 0.027 4,with a decrease of 8.76%,while the cruising lift-drag ratio is increased by 5.25%.As a result,the overall aerodynamic performance of the airship is improved greatly,which confirms the effectiveness of the optimization model.It indicates that the aerodynamic optimization of the hull of the double-hull airship which based on Box-Behnken design and response surface method not only takes into account of the interactive effects of the shape parameters,but also has a relatively small calculation work,high accuracy and reliability.It can be used to select the optimal shape parameters of the hull quickly,which is valuable in engineering application." @default.
- W2354541485 created "2016-06-24" @default.
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- W2354541485 date "2012-01-01" @default.
- W2354541485 modified "2023-09-28" @default.
- W2354541485 title "Aerodynamic Configuration Optimization of Hull of a Hybrid Airship" @default.
- W2354541485 hasPublicationYear "2012" @default.
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