Skip to main content

Research Repository

Advanced Search

Some modeling issues on trailing-edge vortex shedding

Ning, W.; He, L.

Authors

W. Ning

L. He



Abstract

A numerical study has been carried out to investigate modeling issues on trailing-edge vortex shedding. The vortex shedding from a circular cylinder and a VKI turbine blade is calculated using a two-dimensional unsteady multiblock Navier-Stokes solver. The unsteady stresses are calculated from the unsteady solutions. The distributions of the unsteady stresses are analyzed and compared for the cylinder case and the cascade case, respectively. The time-averaged equations are then solved, and the effectiveness of the unsteady stresses in suppressing trailing-edge vortex shedding is checked. Finally, the time-independent solution produced by solving the time-averaged equations is compared with the time-averaged solution obtained by integrating the unsteady solutions. The numerical results have demonstrated that a time-independent vortex shedding solution can be achieved by solving the Navier-Stokes equations with the unsteady stresses and the time-averaged effects of the vortex shedding can be included.

Citation

Ning, W., & He, L. (2001). Some modeling issues on trailing-edge vortex shedding. AIAA Journal, 39(5), 787-793

Journal Article Type Article
Publication Date 2001-05
Deposit Date Mar 11, 2009
Journal AIAA Journal
Print ISSN 0001-1452
Electronic ISSN 1533-385X
Publisher American Institute of Aeronautics and Astronautics
Peer Reviewed Peer Reviewed
Volume 39
Issue 5
Pages 787-793
Keywords Turbulent.
Publisher URL http://www.aiaa.org/content.cfm?pageid=318