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We propose to engineer a low-cost computer-controlled optical diagnostic system for measuring sound speed, thermal diffusivity, density, and velocity. This system will use laser-induced thermal accoustics (LITA), a transient-grating technique capable of making accurate single-shot measurements in luminous, multiphase, high-pressure flows. The LITA signal intensity is quadratic in fluid density f ...

The complex HEV power systems necessitates flexible and dynamic simulation software providing tools for evaluating, characterizing and optimizing these systems. Existing software have neglected to characterize significant component data such as heat loads, cabin cooling requirements, battery thermal management, and heat rejection. Vehicle performance (accounting for environmental conditions and s ...

The Pulse Detonation Engine (PDE) is an intermittent combustion engine that relies on traveling detonation waves for the combustion and compression elements of the prosulsive cycle. This engine may be used as a low cost propulsion system in defense flight vehicle system applications or as the low speed cycle for a high Mach number combined cycle engine system. The mechanical simplicity of this e ...

The creation of digital design information for the manufacture of existing parts is a critical need for maintaining part inventories and to ensure the reliable operation of critical equipment. Such parts, which are frequently found in aging military aircraft, pose an important challenge to the Air Force's resupply operations. Current methods for obtaining the surface geometry of parts do not ad ...

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Recent breakthroughs in virtual prototyping of flight vehicles Coupled with modern methods of Intelligent systems technology provide an opportunity to apply powerful new software tools to the design and testing of both flight vehicles and their associated training devices. Advanced Rotorcraft Technology, Inc. (ART) has developed FLIGHTLAB, a prototyping tool for flight dynamics modeling. ART is ...

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This proposal addresses Phase I of a multi-phase effort to develop advanced frequency-measuring equipment for use in ESM and ECM systems. Wide instantaneous bandwidth, fast response, and ability to handle overlapping signals are receiver requirements that reflect the increasing sophistication of hostile radars as well as today's dense signal environments. Currently available Instantaneous Freque ...