Abstract: The release and absorption of energy is fundamental to all applications. Managing the ensuing heat flow involves selecting a material that possesses an appropriate thermal conductivity, either high or low. Obtaining such thermal conductivity in the face of other design requirements can be exceedingly difficult and often limits device performance. In this talk, I will focus on advances in materials with tailored thermal conductivity and enhanced understanding of the underlying transport behavior in such materials. First, I will show…

ABSTRACT: Gas turbine hot section components are being pushed to the limit with every increasing combustion firing temperatures and improved expectations of life and durability. Gas path components inside gas turbines see some of the harshest conditions including high pressure and temperatures. It is imperative that heat transfer plays a major role in the evaluation and survival of these components. An overview of the challenges in gas turbine heat transfer measurements and design of cooling systems will be discussed in…

Abstract: This article introduces a new field theory formulation. The new field theory formulation recognizes vector continuity as a general principle and begins with a field that satisfies vector continuity equations. Next, independent of the new formulation, this article introduces a new space-time adjustment. Then, we solve the one-body gravitational problem by applying the space-time adjustment to the new field theory formulation. With the space-time adjustment, the new formulation predicts precisely the same precession of Mercury and the same bending…

Abstract: Many mechanical deformations, such as buckling, crumpling, wrinkling, collapsing, and delamination, are usually considered as threats to mechanical integrity and are avoided or reduced in the traditional design of materials and structures. My work goes against these conventions by tailoring such mechanical instabilities to create new functional morphologies. We use ultralow bending stiffness and semiconducting properties of atomically-thin van der Waals (vdW) materials to enable emerging mechanically-coupled properties and device-level multi-functionalities that extend beyond those of bulk material systems.…