# Numerical Study of a vibrating sub-boundary layer vortex generator

@inproceedings{Ahmad2005NumericalSO, title={Numerical Study of a vibrating sub-boundary layer vortex generator}, author={K. A. Ahmad and W. Mcewan and J. Watterson and J. Cole}, year={2005} }

Numerical simulations of the oscillation of an isolated vane-type sub-boundary layer vortex generator (SBVG) have been performed for flows over a flat plate. The flow Reynolds number, based on streamwise distance, is 10. The freestream velocity is 5 m/s and the SBVG is oscillated in simple harmonic motion between 0 degrees to 15 degrees at a range of frequency which corresponds to the bursting events of near-wall structures and the frequency of the largest eddies in the boundary layer. The… Expand

#### 4 Citations

Interaction of Microvortex Generator Flow with Ramp-Induced Shock/Boundary-Layer Interactions

- Physics
- 2011

This paper reports the experiments conducted using two di erent micro vortex generator design on a at plate with four con guration at Mach 2.5. Con gurations include a at surface (baseline), 5 degree… Expand

A Cartesian non-boundary fitted grid method on complex geometries and its application to the blood flow in the aorta using OpenFOAM

- Computer Science
- Math. Comput. Simul.
- 2019

A new non-boundary fitted (NBF) Cartesian grid method to compute flows in a complex geometry such as that found in a human aorta, based on the volume of fluid (VOF) colour function in a regular Cartesian Grid through the open source OpenFOAM platform. Expand

New Seeding and Surface Treatment Methods for Particle Image Velocimetry

- Physics
- 2011

PIV systems rely on a combination of seed particles, laser light intensity, and camera positioning to collected velocity data. Careful attention is needed when selecting the appropriate setup… Expand

CFD SIMULATIONS OF OSCILLATING SUB-BOUNDARY LAYER VORTEX GENERATORS FOR DIFFUSER FLOW SEPARATION CONTROL

- Physics
- 2008

ABSTRACT The RANS code Fluent 6 TM is used to study the application of an array of oscillating sub-boundary layer vortex generators (SBVGs) to control flow separation in a diffuser with an opening… Expand

#### References

SHOWING 1-8 OF 8 REFERENCES

Numerical model of boundary-layer control using air-jet generated vortices

- Physics
- 1994

Numerical calculations of the three-dimensional flowfield generated by pitched and skewed air jets issuing into an otherwise undisturbed turbulent boundary layer are presented. It is demonstrated… Expand

Separation control on high-lift airfoils via micro-vortex generators

- Engineering
- 1994

An experimental investigation has been conducted to evaluate boundary-layer separation control on a twodimensional single-flap, three-element, high-lift system at near-flight Reynolds numbers with… Expand

Active Flow Control Using High-Frequency Compliant Structures

- Engineering
- 2004

Flow control to avoid or delay boundary-layer separation on a wing can dramatically improve the performance of most air vehicles in strategic parts of their individual flight envelopes. Previous… Expand

Subsonic Aerodynamics and Performance of a Smart Vortex Generator System

- Physics
- 1996

A new system for active flow control using smart vortex generators (SVG) is presented. Increments in C/max from modern vortex generators (VGs) are determined through wind-tunnel testing on a… Expand

RANS Turbulence Models For Pitching Airfoil

- Mathematics
- 2005

The RANS code Fluent 6 is used to predict the flow field around a pitching NACA 0012 airfoil. Experimental data for this unsteady flow field is widely available for validation. A hybrid mesh was… Expand

Adaptive wing and flow control technology

- Engineering
- 2001

Abstract The development of the boundary layer and the interaction of the boundary layer with the outer “inviscid” flow field, exacerbated at high speed by the occurrence of shock waves, essentially… Expand