Abstract:Thermal analysis is increasingly used in the engineering of spacecrafts at every stage, including design, test, and ground-operation simulation. Currently used high-fidelity modeling and simulation tools at NASA are computationally prohibitive and not fully compatible with integrated analysis of… more
Abstract:NASA space exploration missions require the electronics for avionic systems, components, and controllers that are capable of operating in the extreme temperature and radiation environments of space and planetary surfaces. To design wide-temperature, radiation-hardened (rad-hard) electronics and… more
Abstract:Accurate real-time microbial monitoring of water environment is of paramount importance to crew health as well as to ensure proper functioning and control of the life support system during space exploration. The existing methods are time-consuming and labor-intensive, and the devices used are bulky,… more
Abstract:The high-intensity level acoustic load generated by large launch vehicle lift-off propulsion is of major concern for the integrity of the launch complex and the vehicle payloads. The currently practiced computational methods are unable to offer the reliability of both the noise generation mechanism… more
Abstract:Combustion instabilities pose a significant technical risk in the development of liquid and solid rocket motors. Much of the effort in modeling combustion instabilities has focused either on systems-level tools, or use of detailed computational fluid dynamics (CFD) to simulate all the involved… more
Abstract:This proposal presents a stand-alone implicit high order temporal differencing solver concept that will interface with research and commercial numerical analysis codes to provide unlimited temporal accuracy. While the computational fluid dynamics (CFD) market has mature products that solve a large… more
Abstract:Accurate and efficient computational modeling of free-surface flows has numerous applications of current and future relevance to NASA. At present, NASA engineers use several commercial codes for modeling cryogenic fluids. However, the free surface modeling technologies in these codes need… more
Abstract:Recent technological advances continue to accelerate the rate of data availability from a number of omics platforms such as genomics, proteomics, metabonomics and metabonomics. This has served as a driving force in efforts to develop novel predictive software tools that can model the underlying… more
Abstract:A novel process is proposed which will allow continuous dewatering of algae growth culture in a device which is robust (no moving parts) and readily scalable through process parallelization. The process makes use of innovative passive (low energy input) flow control and does not need any chemical… more
Abstract:Existing thermal analysis tools for optical signature generation are employed in an off-line manner, and are inadequate for new closed-loop real-time system simulations being pursued by MDA. This STTR project aims to develop and demonstrate an innovative simulation tool for the automatic generation… more
Abstract:The MDA is developing satellite based systems that could benefit from ongoing developments in advanced materials for lithium ion batteries. Unfortunately, the driving applications for much of the new materials research have less abusive operational cycles than the frequent cycling, and sporadic… more
Abstract:ABSTRACT: Traditional multidisciplinary solvers function by solving the individual governing equations on computer clusters. In the case of aero-elastic Fluid-Structures Interaction (FSI) simulations, individual solvers have disparate requirements for optimal performance. CFD codes use iterative… more
Abstract:The overall objective of this work is to develop and integrate comprehensive modeling tools for virtual warfighters and personal protective equipment (PPE) to improve PPE designs. The integrated tools enable assessment of the impact of PPE on the mobility and survivability of warfighters. The focus… more
Abstract:CFDRC proposes the development of methodologies and tools for the integration of weather with multiple components of the hypersonic munitions life cycle process. The impact of weather on high speed projectiles is a complex multidisciplinary problem that can only be accurately estimated in operations… more
Abstract:CFDRC proposes to develop new acoustic metamaterials, more specifically Locally Resonant Sonic Materials (LRSM), to be used in passive Hearing Protection Devices (HPD). LRSM derive their unique properties from resonators contained within each unit cell. Sound attenuation of finite size of LRSM is… more
Abstract:The U.S. Air Force is developing a catalytic thruster for advanced high density-specific impulse green monopropellants. The temperature and pressure generated in a green monopropellant thruster is much higher than with conventional hydrazine monopropellant, resulting in degradation of the catalyst.… more
Abstract:ABSTRACT: Although nanomaterials have demonstrated potential for widespread applications, toxicology of these materials has not been thoroughly evaluated under different exposure scenarios. We propose to develop a comprehensive software tool integrating multidisciplinary physiology and systems… more
Abstract:ABSTRACT: Existing satellite communication devices use Travelling Wave Tube Amplifiers (TWTAs), which operate in the ultra-high frequency, super-high frequency, or extremely-high frequency bands. Because these TWTAs use thermionic cathodes, they are bulky and heavy, and take valuable volume and… more
Abstract:The process of dispensing unguided submunition projectiles from weapons systems must result in stable projectile flight with high kinetic energy and even dispersion over the target area. This project will incorporate a solid body collision methodology into the existing Loci/CHEM coupled 6-DoF/CFD… more
Abstract:The overall objective of the proposed project is to develop an interactive software tool for neck load prediction during warfighting posture and maneuvers. The software will be a validated simulation environment for predicting Warfighter"s neck loads during realistic and repetitive tasks… more
Abstract:Low back pain attributed to piloting military air vehicles is a significant operational and health problem. The major contributors of lumbar pain have been thought to be seating, task posture and vibration. As the asymptomatic pilot starts to experience pain, repeated painful episodes lead to pain… more
Abstract:The objective of this project is to develop and deliver an innovative power generation technology to replace the current thermal batteries used by the Fleet. We will leverage our newly discovered breakthrough in energy harvesting and deliver a hybrid power generator (HPG) that is capable of… more
Abstract:A critical but often overlooked aspect of bioagent detection is rendering the complex environmental sample ready for detection. Commercially available sample preparation technologies are time-consuming, high cost and require trained personnel and sophisticated equipment for operation and thus are… more
Abstract:Current high-throughput platforms rely on labeled substrates that produce detectable spectroscopic signals upon reaction for monitoring enzyme catalytic activity. Add to that the high price tag for these instruments, ranging from several hundred thousand to millions of dollars, and there is a clear… more
Abstract:Current drug discovery and development efforts are severely limited by expensive animal trials and oversimplified in vitro models. Results obtained from in vitro models are not predictive of in vivo toxicity owing to significant difference from the in vivo physiological conditions. In this context,… more
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