Geometry of wall-turbulence and its potential to advance scalable models. This project aims to unravel the connections between the statistical geometry of wall-turbulence and the dynamical interactions of its instantaneous motions. Predicting the complex behaviour of turbulent fluid flow over surfaces in relative motion is central to atmospheric modelling for climate and agriculture, and reducing the environmental effect of fossil fuel usage. Wall-turbulence statistics organise according to a pr ....Geometry of wall-turbulence and its potential to advance scalable models. This project aims to unravel the connections between the statistical geometry of wall-turbulence and the dynamical interactions of its instantaneous motions. Predicting the complex behaviour of turbulent fluid flow over surfaces in relative motion is central to atmospheric modelling for climate and agriculture, and reducing the environmental effect of fossil fuel usage. Wall-turbulence statistics organise according to a predictable geometric structure, and the notorious complexity of turbulent wall-flow dynamics could be clarified through its inherent geometry. This project expects to construct a basis for predicting engineering and atmospheric wall-flows, which would enhance atmospheric flow prediction, reduce energy consumption and further environmental sustainability.Read moreRead less
Self-similar scale interactions in turbulent boundary layers. Predicting and controlling turbulent fluid flow next to a solid surface (the turbulent boundary layer) is of critical importance to ensuring a sustainable energy and environmental future. While recent research has yielded a clearer physical understanding of these flows, converting this understanding into tools useful to engineering practice remains a central obstacle. The proposed research directly addresses this fundamental challenge ....Self-similar scale interactions in turbulent boundary layers. Predicting and controlling turbulent fluid flow next to a solid surface (the turbulent boundary layer) is of critical importance to ensuring a sustainable energy and environmental future. While recent research has yielded a clearer physical understanding of these flows, converting this understanding into tools useful to engineering practice remains a central obstacle. The proposed research directly addresses this fundamental challenge by precisely connecting the eddy interactions of the turbulence to the mathematical equations that rigorously describe these flows. As such it holds breakthrough potential toward the development of turbulent boundary layer prediction and control schemes that do not rely on ad hoc models or assumptions.Read moreRead less
Advancing a first-principles basis for the prediction and manipulation of turbulent wall-flow transport. This project aims to advance the design of energy efficient and environmentally friendly processes and devices by developing analysis tools that tell us how to predict and control the heat and momentum transport caused by turbulent flow near a solid surface. The expected outcomes are ways to accomplish these aims via the direct use of the basic physical laws.
Turbulent wall-bounded flow in adverse pressure gradient environments. This research will create additional research capacity in turbulence control and drag reduction. It will have direct benefits to the Australian economy via the transport industry by reducing the adverse impact of the carbon tax and rising fuel prices on long-haul air, water and road transport, on which Australia is disproportionately reliant.
Optimising flex fuel engine performance. This project will enable alternative fuels to be used optimally in engines for transport and distributed electricity generation. This will benefit Australian industry through better engine control technology and the Australian public through reduced emissions and cost in running engines using natural gas or LPG.
Synthesis of functionalised metal oxide beads with hierarchical pores for radionuclide and metal sequestration. The central aim of this project is to fabricate nanostructured materials to address the worldwide issue of nuclear waste. These novel materials, with tailored porosity and surface functionality, will decrease both radioactive waste volume and the potential for environmental risk. The collaboration between the Caruso group at the University of Melbourne and the Luca group at ANSTO will ....Synthesis of functionalised metal oxide beads with hierarchical pores for radionuclide and metal sequestration. The central aim of this project is to fabricate nanostructured materials to address the worldwide issue of nuclear waste. These novel materials, with tailored porosity and surface functionality, will decrease both radioactive waste volume and the potential for environmental risk. The collaboration between the Caruso group at the University of Melbourne and the Luca group at ANSTO will educate more scientists and students in the areas of nuclear science and engineering, and the environmental impact of nuclear power generators. Such expertise is currently in high demand around the world, thereby enhancing Australia's position in the global nuclear field.Read moreRead less
A New Approach to Advanced Steels via Cluster and Precipitate Strengthening. Formation of interphase nanoparticles and clusters is a new approach to increase strength in advanced high strength steels. Exceptionally high strength levels can be achieved in alloys that only have solute clusters by controlling the temperature-time history. However, the exact mechanism for the formation of clusters and precipitates and the cluster strengthening mechanism are not understood, nor do we know how to cont ....A New Approach to Advanced Steels via Cluster and Precipitate Strengthening. Formation of interphase nanoparticles and clusters is a new approach to increase strength in advanced high strength steels. Exceptionally high strength levels can be achieved in alloys that only have solute clusters by controlling the temperature-time history. However, the exact mechanism for the formation of clusters and precipitates and the cluster strengthening mechanism are not understood, nor do we know how to control cluster formation. This project aims to develop a fundamental understanding of the formation of clusters and nanoprecipitates and determine their contribution to strengthening and other mechanical properties using advanced characterisation techniques such as atom probe tomography and electron microscopy.Read moreRead less
Advanced high strength steels produced by energy efficient direct strip casting. Over one billion tonnes of steel is produced every year and one method of reducing the environmental footprint of this production is through strip casting. This process reduces the energy required to process liquid steel into thin sheet product by an astounding 90 per cent. This proposal aims to expand the application of this technology to new steel grades.
The art of controlling multijet resonance in jet noise and power generation. This project aims to determine the mechanisms by which arrays of high speed jets interact. The project will combine experiments at multiple specialist facilities with analytical approaches to unlock the physics behind both steady and transient behaviour in high-speed multijets. Understanding multijet interaction mechanisms is crucial in the development of more efficient power-generation turbines, and the operation of hi ....The art of controlling multijet resonance in jet noise and power generation. This project aims to determine the mechanisms by which arrays of high speed jets interact. The project will combine experiments at multiple specialist facilities with analytical approaches to unlock the physics behind both steady and transient behaviour in high-speed multijets. Understanding multijet interaction mechanisms is crucial in the development of more efficient power-generation turbines, and the operation of high-speed flight vehicles. Expected outcomes of the project include deep insight into the characteristics of multijet arrays, and the forging of strong links with multiple international research centres. As well as fundamental knowledge, the project will facilitate improved efficiency in gas turbine systems, using pulsed-detonation combustion.Read moreRead less
Novel nanostructured alloy membranes for hydrogen permeation: Advanced materials technology for renewable energy. Hydrogen purification by alloy membranes is a key technology in maintaining the greenhouse gas emission low while using the fossil fuels including coal for energy generation. However, the alloys currently available for the membrane separation are mostly based on a costly precious metal palladium, making the application of the technology limited. The proposed non-equilibrium material ....Novel nanostructured alloy membranes for hydrogen permeation: Advanced materials technology for renewable energy. Hydrogen purification by alloy membranes is a key technology in maintaining the greenhouse gas emission low while using the fossil fuels including coal for energy generation. However, the alloys currently available for the membrane separation are mostly based on a costly precious metal palladium, making the application of the technology limited. The proposed non-equilibrium material processing will enable us to fabricate novel nanocomposite niobium-based alloys to which excellent hydrogen permeation characteristics are expected with high economic viability. Successful development of the proposed alloys could enhance the competitiveness of the Australian coal industry worldwide.Read moreRead less