Abstract:Several approaches to make a fully functional commercial blood simulant are proposed. The simulant will have similar flow characteristics, tactile properties, color, and coagulation capabilities to blood. In this effort, Spectra Group will formulate a p
Abstract:The purpose of the present effort is to develop a Dual Mode Tag (DMT) proof-of-concept system for reducing fratricide, contributing to battlefield situational awareness (SA) and finding downed pilots, by identifying friendly vehicles at tactically significant ranges. We propose an RF Tag, IR/E-O Tag… more
Abstract:There is an urgent, growing demand for versatile, lightweight, low profile, phased arrays to be utilized on advanced ISR platforms. These arrays can be employed for accurate determination of the direction of arrival of emitted signals and for detection of weak signals in noisy environments. The… more
Abstract:NASA, and all users of turbomachinery, continuously requires improvements in engine durability and efficiencies. As combustion engineers push turbine inlet temperatures to new extremes, cooling designers are faced with increasing heat loads and less available coolant usage. Surface cooling… more
Abstract:Fundamental understanding of noise generation and the development of noise reduction technology requires the development of tools that can analyze simultaneously the relationship between the turbulent flow field and the pressure field both near and far. In this proposal we will demonstrate how… more
Abstract:The proposal is aimed at the development of a miniature high bandwidth (1 MHz class) plasma sensor for flow measurements at high enthalpies. This device uses a plasma discharge between two encapsulated electrodes as the primary sensing element to measure various flow parameters including mass flow.… more
Abstract:The current proposal addresses the need for development of an accurate and complete mechanism for the reaction of nanoparticles (using Al as a test case), formulation of mathematical models describing all the chemical, mechanical, and physical processes, predictions for the improvement of Al… more
Abstract:The development of airborne High-Energy Laser (HEL) systems is currently receiving a high level of research effort. There is growing evidence that spherical turrets are not ideal mounting platforms for HEL systems because they are highly susceptible to flows that produce strong optical aberrations… more
Abstract:The objective of this research is to determine if microwave energy deposition can be localized by laser or other means such that significant levels of power/energy can be delivered to off body locations for flow control applications. Preliminary work has shown that very low energy short pulse laser… more
Abstract:ABSTRACT: An optical technique for reliably separating and quantifying the liquid and vapor phases of real fuels has been elusive. Challenges include multiple scattering in dense regions, complex laser interaction with the fuel, a wide range of length scales, and effects of temperature and… more
Abstract:ABSTRACT: There are two overarching objectives of the Phase-I research effort. The first objective would be to provide non-invasive optical measurements for quantifying the pattern factor of the exhaust products from a Well-Stirred Reactor when it is entering a test-section that includes turbine… more
Abstract:This research program proposes to make significant advances toward a novel framework for optimal design of sensors and actuators for use in closed-loop control of dual-mode scramjet engines. The proposal specifically aims to implement control theoretic methods to aid the user in determining the… more
Abstract:The noise due to jet engine exhausts of current military and commercial aircraft continues to be a major environmental concern since the advent of jet aircraft. Challenges associated with increasing levels of noise pollution include aircraft operations ashore and afloat. The high frequency, intense… more
Abstract:ABSTRACT: Spectral Energies, LLC in collaboration with the University of Notre Dame and Georgia Tech proposes to develop flow control approaches for mitigating adverse effects of shock formation, unsteadiness, and shock-induced separation on aero optical turrets. The work will focus for the first… more
Abstract:The measurement of convective, pressure wave-packets in the near field for a full-scale engine is desired because these wave packets can be used to predict the far-field sound. In this proposal we outline a plan to develop software, design a robust mechanical structure, design a microphone array… more
Abstract:ABSTRACT: Modern gas turbines must reduce emissions while demonstrating improved efficiency, durability, and performance. Designers are using higher compression ratios and peak temperatures to meet these goals. Flows in the area of the turbine inlet are highly unsteady, non-uniform, and… more
Abstract:ABSTRACT: The objective of this Phase-II research effort is to further develop, validate and apply the ReaxFF force field parameters for hydrocarbon cracking catalysis on Fe- and Co-doped aluminosilicate systems. During Phase I we demonstrated the feasibility of the ReaxFF method for this… more
Abstract:ABSTRACT: The U.S. Air Force has a need to improve stray light rejection and reduce the solar exclusion angle for space-based optical sensors tasked with detecting and tracking multiple satellites. The Spectral Imaging Laboratory (SPILAB) proposes the development of artificial compound eye (ACE)… more
Abstract:The U.S. Air Force has a need to develop small and agile strapdown (no-gimbal), wide-field-of-view (WFOV) seekers capable of precision guidance within cluttered urban environments. The Spectral Imaging Laboratory (SPILAB) proposes the development of infrared strapdown seekers that utilize the… more
Abstract:Generating land and ocean data products from NASA multispectral and hyperspectral imagery missions requires atmospheric correction, the removal of atmospheric transmission and scattering effects that contaminate the measurements. This program led by Spectral Sciences, Inc. (SSI) addresses the… more
Abstract:ABSTRACT: A core component of aerospace manufacturing is based on cutting-edge technological applications of material design. Chemical kinetics models are vital for interpreting experimental measurements and predicting the behavior of these complex systems. Modern computational chemistry software… more
Abstract:In this SBIR, we develop a toolkit for computing time-dependent signatures for solid rocket motor thrust termination. The toolkit is composed of several modules describing the combustion chamber, near field, and far field flows, and outputs time-dependent spectral imagery. The fidelity of each… more
Abstract:The outcome of the proposed SBIR program will be the development of an innovative scientific testbed code suite for reentry vehicle signatures. The testbed will model all key physical hypersonic flow effects to a high degree of fidelity and will be validated against field data. It is intended that… more
Abstract:Since infrared radiation from missile exhaust plumes is a key observable for many satellite sensors and interceptor seekers, considerable effort has been expended in developing and validating high-fidelity plume signature codes. However, their utility for systems studies of missile fly-outs is… more
Abstract:A successful intercept of a missile by a kinetic energy kill vehicle initiates a complex sequence of events and associated observable signatures that occur over a very wide range of temporal, spatial, and spectral scales. The signatures contain important information on the lethality of the intercept… more
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