Award Data

A METHODOLOGY FOR ANALYZING TWO-PHASE FLOW SYSTEM IN A MICROGRAVITY ENVIRONMENT WILL BE DEVELOPED. THE MAIN OBJECTIVE OF THIS PROPOSAL IS TO CONSTRUCT A COMPUTER MODEL WHICH WILL BE HELPFUL IN THE EVALUATION OF COMCEPTUAL DESIGNS OF THERMAL CONDITIONING SYSTEMS FOR SPACE CRAFTS. THE MIDEL WILL ALSO PROVIDE A TOOL FOR ANALYZING TRANSIENTS DUE TO START UP, SHUTDOWN OR ACCIDENTAL SITUATION. ONE OF TH ...

N/A

THE PROPOSED INNOVATIVE RESEARCH IS TO DESIGN AND DEVELOP THE ARTIFICIAL INTELLIGENCE (AI) COMPONENTS NEEDED TO CREATEA DEDUCTIVELY AUGMENTED NASA MANAGEMENT DECISION SUPPORT SYSTEM (DANMDS). PHASE I OF THE RESEARCH EFFORT WILL IDENTIFY THE AI COMPONENTS REQUIRED FOR SUPPORTING NATURAL LANGUAGE INTERFACE, DECISION-SUPPORT RULE BASE DEVELOPMENT, APPROPRIATE KNOWLEDGE REPRESENTATION SCHEMA AND SEARC ...

THE LOW EARTH ORBIT SPACE STATION WILL PRODUCE A LOCAL GAS CLOUD AND RESULTING CONTAMINATION GENERATED BY (1) OUTGASSING FROM NONMETALLIC MATERIALS, (2) EARLY DESORPTION FROM EXTERNAL SURFACES, (3) LEAKAGE OF THE CABIN ATMOSPHERE,(4) VENTING OF CONDESNATES, AND (5) REACTION CONTROL PLUMES.THIS VERY LOW DENSITY GAS FLOW IS BEST MODELED USING MONTE CARLO METHODS. THE KEY TO USEFUL ENGINEERING PREDIC ...

N/A

N/A

THE OBJECTIVE OF THIS EFFORT IS TO DEVELOP AND EXAMINE THE THEORETICAL BASIS FOR IN SITU PARTICLE SIZING WITH A LASER DOPPLER VELOCIMETER-LDV OPTICAL SYSTEM. THE INNOVATION OF THE PROPOSED APPROACH IS THE SIMULTANEOUS MEASUREMENT OF FOUR DIFFERENT LDV SIGNAL CHARACTERISTICS TO OBTAIN SIMULTANEOUSLY AND IN SITU, PARTICLE SIZE DISTRIBUTIONS, PARTICLE NUMBER DENSITIES AND PARTICLE VELOCITIES, FOR PAR ...

For long duration space missions beyond LEO, the complexity of the missions and the latency of communications with Earth will require HPC systems that would be prohibitively expensive if qualified under traditional guidelines for high reliability space systems. There is a wealth COTS hardware that could potentially be used for HPC systems for non-critical tasks within heavily shielded spacecraft c ...

Accurate navigation is a crucial part of both robotic and crewed exploration of other worlds. For missions to the surfaces of Mars and the Moon, mission planners will require increasingly autonomous guidance systems that support fast, efficient, and agile surface route planning. These navigation systems will rely on access to accurate and regularly updated maps of surface landmarks. In a recent pi ...

Today many spacecraft carry two propulsion options: high thrust required for high acceleration maneuvers such as orbit insertion and rapid response; and low thrust required for station keeping and less critical maneuvers. A new class of non-toxic monopropellants, such as AF-M315E and LMP-103S, perform well in both high and low thrust regimes. Significant investments are maturing both monopropellan ...