Award Data

OVER THE PAST SEVERAL YEARS, UNDER GOVERNMENT AND COMMERCIALSUPPORT, CONTINUUM DYNAMICS, INC. HAS MADE SIGNIFICANT PROGRESS IN COMPUTING THE UNSTEADY WAKES OF FIXED- AND ROTARY-WING AIRCRAFT. THIS PROGRESS, FOR THE MOST PART, RESULTED FROM THE SUCCESSFUL DEVELOPMENT OF THE BASIC CURVEDVORTEX ELEMENT AS A FUNDAMENTAL WAKE ELEMENT BUILDING BLOCK AND A NOVEL GENERALIZED VORTICITY CONTOUR REPRESENTATI ...

The speed at which an attack is detected is a critical trigger for all responses to follow. The accurate determination of the type of attack will determine the type of emergency personnel and response needed. The location will determine the target response area as well as determine by proximity which of the responders that are available can be first on the scene. Therefore, a system that can do th ...

THE GOAL OF THIS RESEARCH IS TO PRODUCE A NEW, REAL GAS, THREE-DIMENSIONAL, PARABOLIZED NAVIER-STOKES (PNS) CODE WHICH IS MORE ROBUST, MORE ACCURATE, AND EASIER TO USE THAN THOSE PRESENTLY IN EXISTENCE. MOST "CURRENT DAY" PNS CODES (INCLUDING THE AFWAL PNS CODE) ARE BASED ON THE NONITERATIVE, IMPLICIT BEAM-WARMING FINITE-DIFFERENCE SCHEME. UNFORTUNATELY, CODES OF THIS TYPE HAVE PROVEN TO BEUNRELIA ...

SPECTRAL MEASUREMENTS OVER THE VISIBLE/NEAR-INFRARED 0.5-1.7 MICRON RANGE CANNOT BE DONE AT PRESENT WITH A SINGLEDETECTOR. TWO SEPARATE DETECTORS (SILICON FOR 0.5-1.1 MICRONS AND GERMANIUM FOR 1.0-1.7 MICRONS) MUST PRESENTLY BE USED IN ORDER TO COVER THE ENTIRE SPECTRAL RANGE. THIS COMPLICATES MEASUREMENT PROCEDURES AND ADDS COST AND EXTRA COMPONENTS TO THE SYSTEM. WE PROPOSE TO DEVELOP A LARGE-AR ...

WE PROPOSE TO DEVELOP A INGAASP/INP DOUBLE HETROSTRUCTURE LASER THAT WILL OPERATE WITH A WAVELENGTH OF 1.08 MICRON. THE CW LASER WILL BE TUNABLE TO PRODUCE LIGHT EQUIVALENT TO THE HELIUM SPECTRAL LINES AT 1.083 MICRON. THIS LASER CAN BE USED AS AN OPTICAL PUMPING SOURCE FOR HE3 AND HE4 ATOMS USED IN SPACE MAGNETOMETERS. CONTINUOUS OUTPUT POWER OF 10MW IS THE DESIGN GOAL.

ADVANCED MATERAILS, SUCH AS GRAPHITE/EPOXY AND METAL MATRIX COMPOSITES, EXHIBIT REMARKABLE MODULUS TO WEIGH PERFORMANCE.THESE MATERIALS ARE CURRENTLY BEING USED IN COMMERCIAL AND MILITARY APPLICATIONS AND ARE EXCELLENT FOR FUTURE USE AS STRUCTURAL MEMBERS FOR SPACE STATIONS. AS WITH MANY ADVANCED MATERIALS, THEIR EFFICIENT AND EFFECTIVE USE IS LIMITED BY FABRICATION TECHNIQUES. CURRENT METHODS OF ...

THE OVERALL CYCLE EFFICIENCY (HENCE, INPUT POWER REQUIREMENTS) OF REVERSE-BRAYTON CRYOCOOLERS FOR SPACE APPLICATIONS IS HIGHLY SENSITIVE TO THE THERMAL EFFECTIVENESS OF THE HEAT EXCHANGERS. APPLICATIONS FOR THESE CRYOCOOLERS IN SPACE DICTATE THAT THESE HEAT EXCHANGERS BE AS SMALL AND LIGHT AS POSSIBLE. TO DATE, ONLYHEAT EXCHANGERS EMPLOYING ORGANIC MATERIALS HAVE BEEN ABLE TO ACHIEVE THE HIGH THER ...

THE MICROGRAVITY ENVIRONMENT OF EARTH ORBIT HAS THE POTENTIAL TO IMPROVE THE QUALITY AND INCREASE THE YIELD OF MATERIALS GROWN BY CHEMICAL VAPOR DEPOSITION (CVD). THE DEVELOPMENT OF CVD IN SPACE WOULD BENEFIT GREATLY FROM THE CAPABILITY TO PREDICT THE IMPORTANT PROCESS HEHAVIOR, ESPECIALLY UNDER THE INFLUENCE OF VARYING GRAVITY FIELDS. THIS CAPABILITY WOULD NOT ONLY FOSTER COMPARISON OF MICROGRAVI ...

TWO-PHASE THERMAL TRANSPORT LOOPS OFFER SIGNIFICANT WEIGHT AND PERFORMANCE ADVANTAGES OVER CONVENTIONAL SINGLE-PHASE SPACECRAFT THERMAL MANAGEMENT SYSTEMS. KEY COMPONENTS IN TWO-PHASE THERMAL MANAGEMENT SYSTEMS ARE THE CONDENSING AND EVAPORATING HEAT EXCHANGERS TO COUPLE THE LOADS TO THE TWO-PHASE THERMAL BUS, AND TO TRANSFER HEAT BETWEEN THE THERMAL BUS AND THE SPACECRAFT RADIATOR. THE MAIN REQUI ...

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