Abstract: A synthetic jet apparatus including a series of generally parallel spaced-apart bimorph piezoelectric plates defining first and second sets of fluid chambers. The chambers of the second set of fluid chambers are interleaved with the chambers of the first set of fluid chambers. The first and second sets of fluid chambers are in fluid communication with sources of first and second fluids, respectively, the source of the first fluid being separate from the source of the second fluid. The bimorph plates are operable to alternately draw the first fluid from its source into the first set of fluid chambers while expelling the second fluid from the second set of fluid chambers, and then expel the first fluid from the first set of fluid chambers back into its source while drawing the second fluid from its source into the second set of fluid chambers.

Abstract: A synthetic jet apparatus including a series of generally parallel spaced-apart bimorph piezoelectric plates defining first and second sets of fluid chambers. The chambers of the second set of fluid chambers are interleaved with the chambers of the first set of fluid chambers. The first and second sets of fluid chambers are in fluid communication with sources of first and second fluids, respectively, the source of the first fluid being separate from the source of the second fluid. The bimorph plates are operable to alternately draw the first fluid from its source into the first set of fluid chambers while expelling the second fluid from the second set of fluid chambers, and then expel the first fluid from the first set of fluid chambers back into its source while drawing the second fluid from its source into the second set of fluid chambers.

Abstract: The present application provides a plasma actuation system for a turbo-machinery device. The plasma actuation system may include an end wall, a number of end wall actuators positioned about the end wall, and a blade positioned adjacent to the end wall. The end wall actuators are oriented to produce a swirling flow between the end wall and the blade.

Abstract: A dielectric barrier discharge device for generating a plasma discharge is disclosed. The device includes a first electrode, a second electrode separated from the first electrode, and a dielectric material disposed between the two electrodes. Each electrode has a first end, a first surface, and a second surface. The first end of the first electrode is disposed proximate to the first end of the second electrode. The first end of the first electrode comprises a set of saw-tooth features disposed between the surfaces configured to stabilize location of streamers of the plasma discharge upon generation thereof.

Abstract: A dielectric barrier discharge device for generating a plasma discharge is disclosed. The device includes a first electrode, a second electrode separated from the first electrode, and a dielectric material disposed between the two electrodes. Each electrode has a first end, a first surface, and a second surface. The first end of the first electrode is disposed proximate to the first end of the second electrode. The first end of the first electrode comprises a set of saw-tooth features disposed between the surfaces configured to stabilize location of streamers of the plasma discharge upon generation thereof.