Time efficient aeroelastic simulations based on radial basis functions

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Time efficient aeroelastic simulations based on radial basis functions
	Liu W; Huang CD; Yang GW(杨国伟); Yang GW(杨国伟)
刊名	JOURNAL OF COMPUTATIONAL PHYSICS
	2017
通讯作者邮箱	liuwen@imech.ac.cn
卷号	330 页码:810-827
ISSN号	0021-9991
通讯作者	Liu, W (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
产权排序	[Liu, Wen; Huang, ChengDe; Yang, Guowei] Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
中文摘要	Aeroelasticity studies the interaction between aerodynamic forces and structural responses, and is one of the fundamental problems to be considered in the design of modern aircraft. The fluid-structure interpolation (FSI) and mesh deformation are two key issues in the CFD-CSD coupling approach (the partitioned approach), which is the mainstream numerical strategy in aeroelastic simulations. In this paper, a time efficient coupling scheme is developed based on the radial basis function interpolations. During the FSI process, the positive definite system of linear equations is constructed with the introduction of pseudo structural forces. The acting forces on the structural nodes can be calculated more efficiently via the solution of the linear system, avoiding the costly computations of the aerodynamic/structural coupling matrix. The multi-layer sequential mesh motion algorithm (MSM) is proposed to improve the efficiency of the volume mesh deformations, which is adequate for large-scale time dependent applications with frequent mesh updates. Two-dimensional mesh motion cases show that the MSM algorithm can reduce the computing cost significantly compared to the standard RBF-based method. The computations of the AGARD 445.6 wing flutter and the static deflections of the three-dimensional high-aspect-ratio aircraft demonstrate that the developed coupling scheme is applicable to both dynamic and static aeroelastic problems. (C) 2016 Elsevier Inc. All rights reserved.
分类号	一类
类目[WOS]	Computer Science, Interdisciplinary Applications ; Physics, Mathematical
研究领域[WOS]	Computer Science ; Physics
关键词[WOS]	Aeroelastics ; Fluid-structure interpolation ; Mesh deformation ; Radial basis functions
收录类别	SCI
原文出处	http://dx.doi.org/10.1016/j.jcp.2016.10.063
语种	英语
WOS记录号	WOS:000394408900042
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/60100]
专题	力学研究所_流固耦合系统力学重点实验室(2012-) 力学研究所_高温气体动力学国家重点实验室
推荐引用方式 GB/T 7714	Liu W,Huang CD,Yang GW,et al. Time efficient aeroelastic simulations based on radial basis functions[J]. JOURNAL OF COMPUTATIONAL PHYSICS,2017,330:810-827.
APA	Liu W,Huang CD,Yang GW,&杨国伟.(2017).Time efficient aeroelastic simulations based on radial basis functions.JOURNAL OF COMPUTATIONAL PHYSICS,330,810-827.
MLA	Liu W,et al."Time efficient aeroelastic simulations based on radial basis functions".JOURNAL OF COMPUTATIONAL PHYSICS 330(2017):810-827.