Transformational Tools and Technologies Project

<p>The Transformational Tools and Technologies (TTT) Project advances state-of-the-art computational and experimental tools and technologies that are vital to aviation applications in the six strategic thrusts. The project develops new computer-based tools, computational fluid dynamics models, and associated scientific knowledge that will provide first-of-a-kind capabilities to analyze, understand, and predict aviation concept performance. These revolutionary tools will be applied to accelerate NASA’s research and the community’s design and introduction of advanced concepts. The Project also explores technologies that are broadly-critical to advancing ARMD strategic outcomes.  Such technologies include the understanding of new types of strong and lightweight materials, innovative controls techniques, and experimental methods.  TTT also develops improved MDAO and systems analysis tools to enable multi-disciplinary integration. All of these technologies will support and enable concept development and benefits assessment across multiple ARMD programs and disciplines.</p><p> </p><p>The tools and technologies of interest span many disciplines.  The Fluid Mechanics Discipline encompasses advanced turbulence modeling, boundary layer transition prediction and modeling, numerical methods, and flow control development and prediction for a wide range of airframe and propulsion system flow problems of interest.  Canonical data is developed and used to validate the modeling improvements developed in this discipline.  Development of more accurate physics-based methods such as large eddy simulation (LES) is emphasized.</p><p>The Structures and Materials Discipline emphasizes improved multifunctional and high temperature materials for airframe and engine application, as well as modeling and simulation tool development to improve validated first-principles materials and structural modeling.  Development of ceramic matrix composite (CMC) materials for high-temperature engine application is of particular emphasis in the discipline.</p><p>The MDAO (Multi-Disciplinary Design, Analysis & Optimization) and Systems Analysis Discipline develops MDAO and aircraft system-level tools to improve integration of discipline-based technologies and enable improved assessment of system-level benefits.  An open-source framework is emphasized to better leverage external partners and increase interaction and benefit to the community.</p><p>The Combustion Discipline is developing more accurate physics-based models for complex multi-species reacting flows representative of aircraft engine combustors.  This is done through a combination of high-fidelity benchmark experiments and the use of advanced unsteady turbulence modeling and large eddy simulation (LES) methods.  Advanced concepts such as active combustion control and pressure-gain combustion cycles are also investigated.</p><p>The Controls Discipline encompasses work across aircraft flight controls and advanced propulsion controls.  Development of technologies to enable distributed engine control systems are an area of emphasis in this discipline.</p><p>The Innovative Measurements Discipline conducts research to advance the state-of-the-art in cross-cutting sensing and measurement technologies for aircraft and propulsion systems.  Areas of development include advanced optical measurements, enhanced sensing, and improved data acquisition.</p>

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