Image & video for insect flight story

15 September 2009

Image and video for the news release 'Secrets of long-haul insect flight revealed'

ALL MATERIAL EMBARGOED UNTIL 19:00 BST THURSDAY 17 SEPTEMBER 2009

 

Locust flight model

Caption: The three models of the locust's wings, with the fully accurate model on the left and the two simplified models in the middle and on the right. The colour shows the computed surface pressure. Blue means low pressure, so large blue patches on the top of the wing indicate high lift, but they also indicate that the flow is not moving smoothly over the surface and this means that the lift is costly to produce. So, although the simpler models are able to generate plenty of lift, it costs them much more power per unit lift to do so.

Download a larger version of this image here.

Caption for video (see righthand link): The top row shows the three models of locusts wings, with the fully accurate model on the left and the two simplified models in the middle and on the right. The colour images in the bottom row show the computed surface pressure maps. Blue means low pressure, so large blue patches on the top of the wing indicate high lift, but they also indicate that the flow is not moving smoothly over the surface and this means that the lift is costly to produce. So, although the simpler models are able to generate plenty of lift, it costs them much more power (per unit lift) to do so.

For further information contact the University of Oxford Press Office on +44(0)1865 283877 or email press.office@admin.ox.ac.uk