|
| |
|
|
|
|
||||
| Home Help Feedback Subscriptions Archive Search Table of Contents | ||||
|
Fig. 12. Drag coefficients plotted as functions of time for a one-winged fling
half-stroke. The letters i–vi along the x axis correspond to
the times the streamlined plots labelled i–vi in
Fig. 7B were drawn. The angles
of attack during pure translation were set to 45°. Reynolds number
(Re) was varied by changing the translational velocity of the wing
from 0.00375 to 0.06 m s–1. The first peak corresponds to the
drag forces generated during translational acceleration. Note that the drag
forces per wing generated during rotation in the one-winged case are
significantly smaller than those generated per wing in the two-winged case
(see Fig. 11). In general,
drag coefficients increase with decreasing Re.
|
