Turbulence remains one of the outstanding problems of classical physics, and one that has challenged physicists and engineers alike for decades, even centuries. The fusion of classical approaches and tools of the modern day – theoretical analysis of the Navier-Stokes equations, state-of-the-art experimental observations, data-driven methods and machine learning – has led to substantial progress […]

Hypersonic flight represents a major frontier in aerospace engineering, with its realization requiring a fundamental understanding of coupled chemical and fluid dynamic processes across multiple environments. Of particular importance are the reacting flows within the propulsion systems that enable sustained hypersonic flight and the high-temperature, chemically reacting flows that develop near vehicle surfaces at extreme […]

Magneto-active solids couple their mechanical response to externally applied magnetic fields, providing a promising route toward remotely tunable materials and structures. Such functionality is particularly attractive for aerospace applications involving vibration isolation, adaptive structures, sensing, and elastic-wave control. However, exploiting this coupling requires understanding a fundamental question: when does a magnetic field actually modify elastic-wave […]

Hydrogen is coming to the forefront as a potential energy carrier to achieve decarbonisation goals and objectives. It is well known that hydrogen is a light molecule diffusing quicker than other molecules and thermal energy in the fuel-air mixture of hydrogen combustion systems. Critical evaluations of these effects have been studied for many decades, suggesting […]

Plane turbulent wall jets, formed when a high-speed jet flows along a solid surface, are traditionally considered to consist of a turbulent boundary layer (TBL) near the wall and a half-free jet above it. However, the occurrence of counter-gradient momentum transport below the mean velocity maximum, where turbulent momentum is transported against the local mean […]