Modeling of delta-wing type vortex generators
Modeling of delta-wing type vortex generators
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DOI：
10.1007/s11431-010-4284-x
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发表时间：
2011-02
期刊：
影响因子：
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通讯作者：
Lei Zhang;Ke Yang;Jianzhong Xu;Mingming Zhang
中科院分区：
文献类型：
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作者：
Lei Zhang;Ke Yang;Jianzhong Xu;Mingming Zhang
本文分两步建立了三角翼涡发生器的数值模型。第一步是基于三角翼理论建立了一个参数化的脱落涡模型，该模型将几何参数和流场参数与脱落涡强度联系起来，而脱落涡强度直接决定了源项的大小。在第二步中，提出了一种在流动控制方程中加入源项的方法，从而可以对脱落涡进行数值模拟。数值模型一完成，就对两种情况进行了试验研究：一种是平板，另一种是翼型段。结果表明，流场结构和气动性能与采用真实的涡流发生器的情况吻合较好。
A numerical model of delta-wing type vortex generator was developed in two steps. The first step was to obtain a parameterized model of the shedding vortex based on delta-wing theory, which relates the geometry parameters and flow field parameters to the strength of shedding vortex which directly decides the source term. In the second step, a method was proposed to add source terms into the flow control equations so that the shedding vortex could be simulated numerically. As soon as the numerical model was completed, two cases: One for a plate and another for an airfoil segment were investigated for test. Comparison showed that the flow field structure and aerodynamic performance agreed well with those obtained from cases with real vortex generators.