Modeling and simulation of bow wave effect in probe and drogue aerial refueling

来源 :Chinese Journal of Aeronautics | 被引量 : 0次 | 上传用户:saif108
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
In a probe and drogue aerial refueling system, the bow wave of the receiver aircraft will produce a strong aerodynamic effect on the drogue once the receiver follows the drogue at a close distance. It is a major difficulty of docking control in the probe and drogue refueling. This paper analyses the bow wave effect and presents a simple method to model it. Firstly, the inviscid flow around the receiver is modeled based on the stream function defined by basic stream singularities.Secondly, a correction function is developed to eliminate the error caused by the absence of air viscosity. Then, the aerodynamic coefficients are used to calculate the induced aerodynamic force on the drogue. The obtained model is in an analytical form that can be easily applied to the controller design and the real-time simulations. In the verification part, computational fluid dynamics(CFD)simulation tests are conducted to validate the obtained flow fields and aerodynamic forces. Finally,the modeling method is applied to an F-16 receiver aircraft in a previously developed autonomous aerial refueling simulation system. The simulations results are analyzed and compared with the NASA flight-test data, which demonstrates the effectiveness of the proposed method. In a probe and drogue aerial refueling system, the bow wave of the receiver aircraft will produce a strong aerodynamic effect on the drogue once the receiver follows the drogue at a close distance. It is a major difficulty of docking control in the probe and drogue refueling This paper analyzes the bow wave effect and presents a simple method to model it. First, the inviscid flow around the receiver is modeled based on the stream function defined by basic stream singularities. Secondarily, a correction function is developed to eliminate the error caused by the absence of air viscosity. Then, the aerodynamic coefficients are used to calculate the induced aerodynamic force on the drogue. The obtained model is in an analytical form that can be easily applied to the controller design and the real-time simulations. In the verification part, computational fluid dynamics (CFD) simulation tests are conducted validate the obtained flow fields and aerodynamic forces. Finally, the modeling method is applied to an F-16 receiver aircraft in a previously developed autonomous aerial refueling simulation system. The simulations results are analyzed and compared with the NASA flight-test data, which demonstrates the effectiveness of the proposed method.
其他文献
信息技术与高校图书馆融合后,形成高校图书馆信息共享空间,其中包含大量的知识信息,为学生的学习提供非常大的便利.而学生利用高校图书馆信息共享空间交互学习时,多种因素可
2007年7月5日,《合格境内机构投资者境外证券投资管理试行办法》开始实施,标志着我国建立了QD(Ⅱ)制度。随着QD(Ⅱ)的发展,对其投资业绩进行评估变得日益重要,业绩评估的结果对于
期刊
理光XF-30/30D(新)与过去的老理光XF-30/30D相比,无论从外表还是从功能上看都是完全相同的.但从内在的技术角度来看,完全是两回事.新的比老的要更上一层楼,老的采用传统的模
人大政协会议刚刚落幕,有效缓解中小企业融资难的问题再度进入政府工作报告。在当今社会的经济环境下,金融已经成为整个国民社会经济的核心。从微观角度看,金融和融资正在日益影
改革开放以来,区域经济发展不均衡一直困扰着我国整体经济发展。因此,如何缩短东部与中、西部区域经济差距,如何发展中、西部区域经济水平成为目前我国面临的难题。近期,胡锦涛同
青少年是法治教育的重点对象,中职学生是青少年的重要组成部分,所以加强中职学校法治教育工作尤为必要。以互联网和移动互联网为主的新型媒体已成为这个时代的显著特征,所以,
随着新课程基本理念的渗透,以往的教学理念、教学模式已经不能满足学生的学习需求。也就是说,在物理教学中,教师要立足于物理教学,以学生为切入点,充分发挥学生的主动性,为高
产业集群是一种极具经济竞争力的组织形式,在全球各个国家和地区,政府都将其作为发展经济的重要战略工具。产业集群形成与演化、发展阶段、集群类型、集群竞争力的相关研究成果,为政府制定集群发展政策提供了指导。而对产业集群的识别研究是所有相关研究的基础,对丰富产业集群的理论以及更好地实施产业集群政策有至关重要的意义。首先,本文通过对产业集群概念、特征以及原有的识别方法的梳理,依据分工及合约理论、投入产出理论
随着中国经济的发展,新型的农业经营主体开始大量涌现,农业生产的规模化和集约化水平得到了快速提高,农业对金融服务的需求也日益强烈。河南省作为我国第一的农业大省,在中原经济