A simple mechanism for controlling vortex breakdown in a closed flow

Details A simple mechanism for controlling vortex breakdown in a closed flow A simple mechanism for controlling vortex breakdown in a closed flow

2005-12-27

arxiv.org/abs/physics/0512248v2

Physics

Fluid Dynamics

11 pages, 10 eps figures, the paper has been completely rewritten

Scientific paper

This work is focused to study the development and control of the laminar vortex breakdown of a flow enclosed in a cylinder. We show that vortex breakdown can be controlled by the introduction of a small fixed rod in the axis of the cylinder. Our method to control the onset of vortex breakdown is simpler than those previously proposed, since it does not require any auxiliary device system. The effect of the fixed rods may be understood using a simple model based on the failure of the quasi-cylindrical approximation. We report experimental results of the critical Reynolds number for the appearance of vortex breakdown for different radius of the fixed rods and different aspect ratios of the system. Good agreement is found between the theoretical and experimental results.

Affiliated with

Also associated with

No associations

Rating

A simple mechanism for controlling vortex breakdown in a closed flow does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A simple mechanism for controlling vortex breakdown in a closed flow, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A simple mechanism for controlling vortex breakdown in a closed flow will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-291224