Award Data

During aircraft turbine engine operation, augmentor (afterburner) operation is often associated with combustion instabilities (oscillations) that can be potentially detrimental to the turbine engine if the resonant amplitude levels are excessive.Oscillation in the frequency range of 50-100 Hz is commonly called

Rain and dust erosions on aircraft forward facing surfaces such as leading edges, engine inlets, nose radomes, propeller blades, and antennas are serious problems. Due to increasing optical missile threats more low gloss rain erosion coatings are beingused. Current commercial lusterless gray rain erosion coating failed the rain test within 36 minutes when tested at 500mph under 1

Oceanit has successfully shown in Phase I that highly accurate (sub-arcsecond) observations are obtainable utilizing a relatively low-cost COTS system. These highly accurate angular observations can be introduced into the orbit determination process as asupplement to high-quality range data. These improved angular observations help resolve the geometric ambiguity of range-only orbit determinatio ...

The double-clad multicore fiber laser has proven to be the most efficient, optically-pumped laser. In Phase I, we have demonstated that phase-locking occurs spontaneously among a group of closely packed single mode fiber lasers configured isometrically ina common cladding. This result suggests that, by using our unique power combining technique developed at PC Photonics Corporation, high power o ...

COMPOSITE MATERIALS SUCH AS GRAPHIT/EPOXY AND KEVLAR/EPOXY OFFER THE POTENTIAL TO REDUCE WEIGHT, RADAR CROSS SECTION (RCS), AND MANUFACTURED COSTS IN FLIGHT VEHCILE STRUCTURES. THIS PROGRAM IS DESIGNED TO APPLY THESE BENEFITS TO AFAL'S LOW ALTITUDE DISPENSER (LAD). AT THE SAME TIME THE CURRENT 11" PAYLOAD BAY WOULD BE INCREASED TO 12" TO INCREASE PAYLOAD VOLUME AND EFFICIENT MUNITIONS PACKING. AFT ...

A PROPOSAL IS PRESENTED HEREIN TO NUMERICALLY INVESTIGATE THE UNSTEADY DYNAMICS OF HAIRPIN VORTICS SUBMERGED IN VARIOUS BACKGROUND FLOWS. THE COMPUTER CODE TO BE USED WAS DEVELOPED FOR CALCULATING UNSTEADY THREE-DIMENSIONAL TURBULENT BOUNDARY LAYER FLOWS ON WINGS AND IS CAPABLE OF TREATING NEGATIVE CROSS FLOW AND STREAMWISE REVERSE FLOW. UNDER PHASE I OF THE CURRENT PROPOSAL, THE BACKGROUND FLOW W ...

A PROPOSAL IS PRESENTED HEREIN TO EXTEND A RECENTLY DEVELOPED LABRYINTH SEAL ANALYSIS TO ENABLE IT TO BE APPLIED TO MORE ADVANCED SEALS WHICH HAVE RECENTLY BEEN PROPOSED FOR USE IN ADVANCED HIGH PERFORMANCE AXIAL TURBOMACHINERY. UNDER PHASE I OF THIS EFFORT, THE NECESSARY INITIAL COORDINATE SYSTEM DEVELOPMENT WILL BE UNDERTAKEN TO ENABLE THE CURVED SEAL LIPS CHARACTERISTICS OF THESE ADVANCED DESIG ...