二维射流中翼型气动特性计算与分析

Translated title of the contribution: Calculation and analysis of aerodynamic characteristics for airfoils immersed in two-dimensional jet flow

Xu Li, Zhou Zhou, Jiahao Guo, Chen Xue

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

In order to study the aerodynamic interaction of the airfoil and jet flow, the free streamline model and the panel method are combined to establish a calculation method for the aerodynamic characteristics of the airfoil in a two-dimensional inviscid jet flow. Using the assumption of constant total pressure difference and free streamline model to determine the vortex strength and position of the jet boundary, the aerodynamic force of the airfoil is solved by the vortex panel method, and the whole process is calculated by relaxation iteration. Firstly, the relevant theory in this paper is introduced, and the convergence and effectiveness of the present method are also tested. Next, the influence of the position and the ratio of jet height to airfoil chord on airfoil aerodynamics in the jet flow are studied. Finally, the momentum theory is used to analyze the aerodynamic characteristics of the airfoil in the jet flow. The results show that the aerodynamic characteristics of the airfoil in the jet flow is quite different from that in the freestream. When the jet flow is deflected, the airfoil will not only generate lift but also drag. The method in this paper can be used to study the aerodynamic characteristics of the airfoil immersed in the jet flow.

Translated title of the contributionCalculation and analysis of aerodynamic characteristics for airfoils immersed in two-dimensional jet flow
Original languageChinese (Traditional)
Pages (from-to)243-252
Number of pages10
JournalXibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University
Volume40
Issue number2
DOIs
StatePublished - Apr 2022

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