Self-Similarity and helical symmetry in vortex generator flow simulations
Self-Similarity and helical symmetry in vortex generator flow simulations
复制标题
涡流发生器流动模拟中的自相似性和螺旋对称性
DOI：
10.1088/1742-6596/555/1/012036
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
N. Sørensen
中科院分区：
文献类型：
--
作者：
U. Fernandez;C. Velte;Pierre;N. Sørensen
According to experimental observations, the vortices generated by vortex generators have previously been observed to be self-similar for both the axial (uz) and azimuthal (uθ) velocity profiles. Further, the measured vortices have been observed to obey the criteria for helical symmetry. This is a powerful result, since it reduces the highly complex flow to merely four parameters. In the present work, corresponding computer simulations using Reynolds- Averaged Navier-Stokes equations have been carried out and compared to the experimental observations. The main objective of this study is to investigate how well the simulations can reproduce the physics of the flow and if the same analytical model can be applied. Using this model, parametric studies can be significantly reduced and, further, reliable simulations can substantially reduce the costs of the parametric studies themselves.
