alexa Abstract | Numerical and Experimental Study on the Ability of Dynamic Roughness to Alter the Development of a Leading Edge Vortex
ISSN: 2476-2296

Fluid Mechanics: Open Access
Open Access

OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Research Article Open Access


Both computational fluid dynamics, using two- and three-dimensional commercial flow solvers (FLUENT), and experimental analysis (Particle Image Velocimetry) were used to document the ability of sub-boundary layer oscillating surface perturbations (dynamic roughness) to alter the development of a leading edge vortex (LEV) on an airfoil undergoing dynamic stall. The ability to delay or instigate LEV development can potentially lead to methods that can take advantage of the sustained lift while limiting the consequences associated with the shedding of the vortex. Both computational and experimental results show the ability of dynamic roughness to alter the development of a LEV on a rapidly pitching airfoil. Computational simulations were performed in a Reynolds number range from 25,000 to 50,000 at a reduced frequency of 0.1, while experiments included this range as well as runs up to a Reynolds number of 200,000 and reduced frequencies of 0.1, 0.15, and 0.2. The lift-to-drag ratio was increased by approximately 60% at 15° AOA.

To read the full article Peer-reviewed Article PDF image | Peer-reviewed Full Article image

Author(s): Christopher D Griffin*, Wade W Huebsch, Alric P. Rothmayer and Jay P. Wilhelm


Numerical, Dynamic Roughness (DR), Leading Edge Vortex (LEV), Computational Fluid Dynamics (CFD), 2D-3D Commercial Flow, Autowave Vortex,Dissipative Particle Dynamics,Electron Microscopy, Electronics Fluid Dynamics,Gravitation, Magnetism, Mechanical Engineering, Molecular Dynamics Physics, Quantum Vortex, Radio Astronomy, Scalar Wave, Superconductors, Superfluid?s,Turbulent Flow, Vertical Flow, Vortex, Vortices, Wireless

Related Subjects

Share This Page

Additional Info

Loading Please wait..
Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version