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Title: Local Piston Theory with Viscous Correction and Its Application
Author: Liu W(刘文); Zhang CA(张陈安); Han HQ; Wang FM(王发民)
Source: AIAA Journal
Issued Date: 2017-03
Volume: 55, Issue:3, Pages:942-954
Abstract:
This paper introduces a local piston theory with viscous correction for the prediction of hypersonic unsteady aerodynamic loads at high attitudes and large Mach numbers. A semi-empirical relation accounting for the viscous interaction effects to determine the effective shape is proposed. The method is validated by applying to thin airfoils at various Mach numbers, angles of attack, and operating altitudes. Sample two- and three-dimensional aerodynamic forces calculations are conducted demonstrating this method. Furthermore, flutter boundary predictions for a two-dimensional airfoil and pitching-in-damping derivative evaluations for a three-dimensional waverider configuration are performed with this unsteady aerodynamic model. Compared with the Euler-based local piston theory, this model performs much better at high altitudes for a wide range of Mach numbers, angles of attack, and shapes. Results suggest the feasibility of using the effective shape of hypersonic vehicles to efficiently and accurately obtain the unsteady aerodynamic characteristics in hypersonic flow environment.
Keyword: hypersonic ; unsteady aerodynamics ; piston theory ; aeroelasticity
Language: 英语
Indexed Type: SCI ; EI
Corresponding Author: 张陈安
Correspondent Email: zhch_a@imech.ac.cn
DOI: 10.2514/1.J055207
Related URLs: 查看原文
Subject: 力学::流体力学::空气动力学 ; 航空、航天科学技术::航空、航天科学技术基础学科::航空、航天科学技术基础学科其他学科
Department: LHD高超声速空气动力学
Classification: 一类/力学重要期刊
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/60041
Appears in Collections:高温气体动力学国家重点实验室_期刊论文

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description.institution: 1.National Key Laboratory of Aerodynamic Design and Research, Northwestern Polytechnical University
2.State Key Laboratory of High Temperature Gas Dynamics, Institute of Mechanics

Recommended Citation:
刘文. Local Piston Theory with Viscous Correction and Its Application[J]. AIAA Journal,2017,55(3):942-954.
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