The Transitional and Turbulent Structure of Rotating Disk Boundary Layers. Design optimization in areas of energy, materials processing, manufacturing and aerodynamics often depends on fluid flows adjacent to surfaces (wall-flows), and many such flows are three-dimensional (3-D). At present, 3-D wall-flows are poorly understood, and thus we aim to provide the first comprehensive study of the prototypical 3-D wall-flow on a rotating disk. Experiments in a bespoke facility will cover the importan ....The Transitional and Turbulent Structure of Rotating Disk Boundary Layers. Design optimization in areas of energy, materials processing, manufacturing and aerodynamics often depends on fluid flows adjacent to surfaces (wall-flows), and many such flows are three-dimensional (3-D). At present, 3-D wall-flows are poorly understood, and thus we aim to provide the first comprehensive study of the prototypical 3-D wall-flow on a rotating disk. Experiments in a bespoke facility will cover the important flow regimes (transitional and turbulent), and novel sensors will quantify the detailed 3-D flow structure. By clarifying critical instability scenarios and revealing turbulent flow scaling structure, this project will fundamentally advance physical understanding and analytical and computational models of 3-D wall-flowsRead moreRead less
Elucidating the inertial force mechanisms of turbulence. The turbulent flow of fluids (for example, air, water) near a solid surface is of enormous technological importance. The proposed research will advance engineering prediction and control capabilities by revealing how the unsteady eddying motions produce the apparent inertial force that distinguishes turbulent flows from their laminar counterparts.
The underexpanded impinging jet: a self-forcing flow of critical importance. The project aims to support the development and optimisation of a wide range of industrial processing techniques based on an in-depth understanding of receptivity mechanisms in the under-expanded impinging jet flow. Under-expanded impinging jets have broad applications ranging from aerospace propulsion to additive manufacturing to pharmaceutical drug delivery. By elucidating the underlying physics of this highly complex ....The underexpanded impinging jet: a self-forcing flow of critical importance. The project aims to support the development and optimisation of a wide range of industrial processing techniques based on an in-depth understanding of receptivity mechanisms in the under-expanded impinging jet flow. Under-expanded impinging jets have broad applications ranging from aerospace propulsion to additive manufacturing to pharmaceutical drug delivery. By elucidating the underlying physics of this highly complex flow field, the project aims to facilitate active control methodologies in a range of key industrial flows. The expected outcomes of the research include improving the efficiency and efficacy of a number of industrial processes, as well as increased knowledge about the fundamental science.Read moreRead less