Award Data

Combustor Lean BlowOut (LBO) is a significant challenge in modern military gas turbine combustors. LBO can occur either during rapid engine deceleration or during operation at idle conditions with water/steam ingestion. Current practice is to design adequate safety margins to avoid the onset of blowout. However, significant engine performance improvements can be realized though the development o ...

In high F/A military gas turbine combustors such as JSF, localized pockets of carbon monoxide and hydrogen can exit the combustor, causing severe cooling challenges for designers of turbine inlet guide vanes. Instead of cooling the vane, cooling air can interact with the hotpath flow to release heat near the vane surface, resulting in durability challenges and possibly catastrophic damage. In this ...

Increasing requirements for software defined radios (SDR), such as those developed for Joint Tactical Radio System (JTRS), call for reduced size, lighter weight hardware in which to implement this next generation radio communication system. Today’s conventional circuit card assembly (CCA) packaging technologies, i.e. plated through-hole (PTH) and surface mount technology (SMT), are struggling t ...

Microfibrous Entrapped Catalysts (MFEC) are proposed for detailed analysis to determine their potential to meet future Navy fuel needs by means of highly selective Fischer Tropsch Synthesis (FTS). MFEC are comprised of small grains of supported catalysts (ca. 10-200 micron diameter) entrapped within sinter-locked networks of micron diameter metal fibers. Metal fibers comprise only 5-10 vol% of the ...

Warfighters are increasingly relying on technology equipment to ensure safety, mission effectiveness, and situational awareness. This equipment increases the capabilities of warfighters but also adds to their weight burden. This excess load could cause significant stress on the musculoskeletal system and lead to physiological deficits. The overall objective of the proposed project is to develop a ...

An innovative hybrid nonlinear reduced order method (ROM) for deforming unstructured mesh and overset Cartesian grid for moving body problems is proposed. Utilizing the properties of a maximum 6 degrees of freedom (DOF) of a moving body, the proposed method computes the grid deformation using nonlinear large deformation theory to preserve the original grid quality under each DOF, so that no extra ...

Today’s Warfighter often carries an inordinate load that can lead to injuries and encumbered performance. Equipment is distributed among squad members with little, if any regard for differences in strength and anthropometry. Consequently, the current focus on human-centric design requires a modeling and simulation tool that can reduce the load Warfighters carry and can help distribute equipmen ...

Maritime asymmetric air threat detection begins with an in depth comprehension of the tactical picture. Security lies in the ability to sense threats in all environments. Advanced Optical Systems, Inc. (AOS) and Technology Systems, Inc. (TSI) have joined together to propose APSTAAT, a system for autonomous persistent surveillance for the asymmetric air threat. Low, slow flyers are threats to surfa ...

Close-coupled fuel injector/flameholders used in modern augmentors face difficult challenges in static stability due to higher airflow velocities and higher levels of vitiation than past augmentors. In addition, close-coupled fuel injection schemes typically employ jet-in-crossflow methods to adequately penetrate and mix the fuel with the airstream, but have difficulty providing sufficient fuel to ...

Close-coupled fuel injector/flameholders used in modern augmentors face difficult challenges in static stability due to higher airflow velocities and higher levels of vitiation than past augmentors. In addition, close-coupled fuel injection schemes typically employ jet-in-crossflow methods to adequately penetrate and mix the fuel with the mainstream, but have difficulty providing sufficient fuel ...