An engine inlet air particulate separator that uses zero mass active flow
control devices, and methods of using the same, are provided. The
separator has a separator body that has an arcuate portion with a bight
region. The separator body may have an angle .alpha. between centerlines
in the range from about 115.degree. to about 85.degree.. The separator
body separates into a bypass conduit and a primary air conduit, separated
from each other by a splitter, downstream from the bight region, which is
in fluid communication with the arcuate portion. A zero mass active flow
device is in fluid communication with a third region of the separator
body which is located proximate a point where the air stream would
otherwise have separated from an inner wall of the particle separator.