image
go to AoS home
search site
 
home current exhibition submission archive about us contact us
     
    The Vortex in the Bubble  
    image

go to top

next image

go back go forward

Robert Whittlesey
Graduate Student
This image shows the calculated forward and backward Finite Time Lyapunov Exponent (FTLE) based on vortex ring experiments. Ridges in the forward and backward FTLE can be thought of physically as repelling and attracting structures, respectively, within the flow. The stronger the color intensity, the stronger the repulsion or attraction. In this image, the repelling structure is shown in red and the attracting structure is superimposed in blue. Caught in between the attracting and repelling structures forms what is known as the "vortex bubble" and can clearly be seen as the ellipse in the center of the image.

   

 

 
   

 

 

 

 

go to Caltech Home