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Djavad Kamari

Djavad Kamari

Academic rank: Assistant Professor
ORCID: https://orcid.org/0000-0002-6490-9374
Education: PhD.
ScopusId:
HIndex: 0/00
Faculty: Faculty of Engineering
Address: -
Phone: 38305005

Research

Title
Investigating the Effects of Using Synthetic Jet on Wing Tip Vortex at Low Reynolds Number
Type
Presentation
Keywords
Reynolds number, Wake turbulence, Wings, Vortices, Eddies (Fluid dynamics), Momentum, Simulation, Suction, Turbulence, Wake
Year
2017
Researchers Djavad Kamari ، Mehran Tadjfar

Abstract

Evolution of wing tip vortex has been widely studied by many researchers. Winglet, jet, and suction devices have been implemented close to the wing tip to passively or actively mitigate the tip vortex effects. This study aims to investigate the effects of employing a synthetic jet at the tip of a half wing model. The flow was assumed to be incompressible, low speed and the Reynolds number based on chord length with aspect ratio equal to two for half wing was 1.8 × 105. Different reduced frequencies and momentum coefficients were applied. A Detached Eddy Simulation by considering Spalart-Allmaras as the turbulence model for sub-grid scale zone and near the walls was employed to simulate the flow field study. Results showed large diffusivity in vortex core. Also, a reduction in longitudinal and total velocity magnitude has observed at vortex core region in the near wake. https://doi.org/10.1115/FEDSM2017-69117