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Recent technology advances have enabled the simulation community to achieve greater realism in virtual training environments. As new methods for synthetic image generation are developed, the lack of readily available supporting data to populate these specialized techniques limits their implementation. Currently the capability is not available to efficiently generate enhanced temporal energy maps ...

This proposal addresses the need for development of room-temperature ionic liquids (RTILs) for use in electrolytes for reversibly electroplating films with specific optical, emissive and electrical properties on demand. Target applications for these electrolytes are devices using reversible electroplating for tuning/regenerating functional surfaces, such as mirrors or thermal emitters, deployed on ...

A market study of cybersecurity of the Internet of Things (IoT) in Phase I of this effort shows that the rapidly escalating weaponization of IoT devices will continue to be a problem for complex technical, economic, and political reasons. The IoT phenomenon has yielded a vulnerability with asymmetric cost-benefit in favor of the adversary, and this in turn has created the potential for strategic s ...

The Phase-II research is a natural extension and a significant advancement over the Phase-I research, which has successfully demonstrated high-speed, burst-mode, polarization-based, dual-plane, stereoscopic PIV measurements synchronized with OH-PLIF imaging of turbulent swirling combustion in a generic gas-turbine combustor with and without acoustic forcing. We propose to conduct high-speed, burst ...

Accurate knowledge of heat flux is critical in assessing the performance and survivability of hypersonic aerodynamic systems. Under these flow regimes extreme pressures, temperatures, and vibrations make it difficult to quantify even the most basic aerothermodynamic properties. Ahmic Aerospace and Virginia Tech propose an innovative new approach to develop robust heat flux sensors and a data reduc ...

Spectral Energies and the University of Notre Dame is developing a new class of point-wise sensors for high-enthalpy conditions that rely on the use of a weakly ionized AC discharge between two electrodes as the main sensing element. The advantages of this approach include a native high bandwidth with a theoretical maximum in excess of 15 MHz and a simple mechanical design that is inherently robus ...

TBD

The automotive and aerospace industries use topology optimization to minimize structural weight while satisfying functional constraints. However, the industry-standard fictitious material or density approach has been less effective when applied to physics beyond simple structural mechanics. Known issues include: failed numerical convergence or so-called gray material in computed optimal designs, n ...

Computational design is encountering barriers due to chaotic dynamics. The characteristic unpredictability, aperiodicity, and sensitivity to initial conditions in chaotic dynamics requires computationally costly time-dependent analysis. Computationally costly analysis precludes sampling-based optimization, indicating that chaotic systems would significantly benefit from gradient-based optimization ...

Improved temperature measurements of thermal barrier coating (TBC) components are needed for gas turbine research and development.Imaging pyrometry systems are preferred because they are non-contact and can measure the complex spatial temperature distribution on components.Measurement in the long-wave infrared (LWIR) band is required for accurate temperature measurements of modern TBCs.Fiber coupl ...