Conjugate natural convection boundary layers. Conjugate natural convection systems occur when a conducting vertical wall separates fluids at different temperatures (that is at a window separating the interior of a room from the outside or when a container of fluid is placed in a refrigerator). This project will provide accurate predictions of such flows together with scaling relations.
Entrainment and Mixing in Turbulent Negatively Buoyant Jets and Fountains. The project intends to develop tools to accurate predict fountain flows. Volcanic eruptions, building ventilation and brine discharge from desalination plants are all examples of turbulent fountains and negatively buoyant jets. The project aims to conduct an investigation into the turbulent structure of fountains and negatively buoyant jets using numerical simulation and laboratory experiments, and to assess the accuracy ....Entrainment and Mixing in Turbulent Negatively Buoyant Jets and Fountains. The project intends to develop tools to accurate predict fountain flows. Volcanic eruptions, building ventilation and brine discharge from desalination plants are all examples of turbulent fountains and negatively buoyant jets. The project aims to conduct an investigation into the turbulent structure of fountains and negatively buoyant jets using numerical simulation and laboratory experiments, and to assess the accuracy of the commonly used integral models and test the effect of the use of more accurate entrainment relations. This may have a range of applications – enabling better prediction of environmental impacts, reduction of the adverse effects of the discharge of pollutants, and reduction in energy consumption in building ventilation and other industrial applications.Read moreRead less
Towards energy-efficient lighting based on light-emitting diodes: the role of silicon carbide grown on Si Wafers. This project will investigate a potential solution to the problems of cost and quality of light-emitting diodes for solid-state lighting. The expected outcome is knowledge to underpin future development of solid-state lighting that is suitable for a wide replacement of the much less efficient and effective incandescent bulbs and fluorescent tubes.
Pathways for performance improvements of organic light emitting diodes . Organic light-emitting diodes (OLEDs) represent the next generation technology for displays and lighting. Despite their rapid uptake, one of the factors limiting their application in lighting is the efficiency roll-off at high brightness. This project aims to work towards solutions for this problem using an innovative combination of simulation studies and experimental work. Expected outcomes include improved theoretical and ....Pathways for performance improvements of organic light emitting diodes . Organic light-emitting diodes (OLEDs) represent the next generation technology for displays and lighting. Despite their rapid uptake, one of the factors limiting their application in lighting is the efficiency roll-off at high brightness. This project aims to work towards solutions for this problem using an innovative combination of simulation studies and experimental work. Expected outcomes include improved theoretical and experimental approaches leading to new design rules for OLEDs. This should provide significant benefits such as a pathway for development of improved efficient, high brightness OLEDs for applications in low energy consumption lighting and long-lasting, bright displays.Read moreRead less
Ultra-high mobility Dirac semimetal nanostructures for solid state devices. This project aims to develop novel Dirac semimetal nanostructures and determine their structural and chemical characteristics to ultimately assemble high-performance devices. The growth of band-engineered nanostructures and understanding their evolution, fine structure and unique properties are key steps for developing high-performance nanostructure-based devices. The new knowledge and skills developed in this project wi ....Ultra-high mobility Dirac semimetal nanostructures for solid state devices. This project aims to develop novel Dirac semimetal nanostructures and determine their structural and chemical characteristics to ultimately assemble high-performance devices. The growth of band-engineered nanostructures and understanding their evolution, fine structure and unique properties are key steps for developing high-performance nanostructure-based devices. The new knowledge and skills developed in this project will greatly enhance the knowledge base of nanoscience and nanotechnology, and will have a significant impact on practical applications of nanostructure-based devices. This project will underpin the development of next-generation electronic nanomaterials that will enhance the long-term viability of Australia’s high-technology industries.Read moreRead less
Development of High Frequency and High Power Density Magnetics and its Integrated Magnetic Circuit for Solar Renewable Energy Conversion Systems. The proposed project will result in theoretical and practical contributions to the field of high frequency (HF) magnetics and computational electromagnetics based computer modelling technologies for the power converter used in solar PV systems and high power density converters. The project will provide industry with several novel HF magnetic structures ....Development of High Frequency and High Power Density Magnetics and its Integrated Magnetic Circuit for Solar Renewable Energy Conversion Systems. The proposed project will result in theoretical and practical contributions to the field of high frequency (HF) magnetics and computational electromagnetics based computer modelling technologies for the power converter used in solar PV systems and high power density converters. The project will provide industry with several novel HF magnetic structures and the associated design methodology, and an innovative technology to industry and society with following major benefits: a) increased productivity and minimization of product risk, b) faster project management cycles through the use of cost-effective new design methodology, and c) an improved problem solving environment for scientific research and commercial applications.Read moreRead less
CoopEcoSafe: a new cooperative, green and safe driving system. Road transport plays a vital role in our economy but generates huge costs in road trauma and greenhouse gases. Eco-driving has been trialed as a cost-effective approach to reducing fuel consumption, but little research has examined its effects on safety. This research brings together disciplines of road safety, psychology and engineering to address the fundamental question: how can mobility be greener while being safer? It develops: ....CoopEcoSafe: a new cooperative, green and safe driving system. Road transport plays a vital role in our economy but generates huge costs in road trauma and greenhouse gases. Eco-driving has been trialed as a cost-effective approach to reducing fuel consumption, but little research has examined its effects on safety. This research brings together disciplines of road safety, psychology and engineering to address the fundamental question: how can mobility be greener while being safer? It develops: a new theoretical model that optimises environmental and safety outcomes; new persuasive in-vehicle Human Machine Interface supported by cooperative Intelligent Transport System; and, comprehensive benefits evaluation. This research will bring major improvements to both road safety and energy use. Read moreRead less
Ductile grinding mechanism and technology of brittle single crystals. This project aims to develop a fundamental understanding of the removal mechanics of emerging brittle single crystals under grinding-induced loading. A successful outcome will not only develop a new theoretical model for predicting the ductile removal regime of this class of difficult-to-machine materials, but their cost-effective ductile grinding processes will also be generated. It will address a longstanding bottleneck prod ....Ductile grinding mechanism and technology of brittle single crystals. This project aims to develop a fundamental understanding of the removal mechanics of emerging brittle single crystals under grinding-induced loading. A successful outcome will not only develop a new theoretical model for predicting the ductile removal regime of this class of difficult-to-machine materials, but their cost-effective ductile grinding processes will also be generated. It will address a longstanding bottleneck productivity issue in advanced manufacturing. The breakthrough technology developed in the project is expected to significantly benefit a number of industrial sectors for the fabrication of more affordable high-performance devices including mobile phones, light-emitting diodes, solar cells, sensors, and laser systems.Read moreRead less
A new lapping process for difficult-to-machine brittle materials. This project aims to address a timely bottleneck issue in the conventional lapping of difficult-to-machine optoelectronic brittle materials. An innovative chemically enhanced lapping technology for fabricating such materials is expected to reduce machined subsurface damage. This is significant because it would shorten the subsequent finishing process and minimise the manufacturing cost. Intended outcomes from this project also inc ....A new lapping process for difficult-to-machine brittle materials. This project aims to address a timely bottleneck issue in the conventional lapping of difficult-to-machine optoelectronic brittle materials. An innovative chemically enhanced lapping technology for fabricating such materials is expected to reduce machined subsurface damage. This is significant because it would shorten the subsequent finishing process and minimise the manufacturing cost. Intended outcomes from this project also include an advanced machining theory and innovations in material removal characterisation. This breakthrough technology should benefit the design and fabrication of high performance electronic devices for energy, medicine and communication sectors with considerable impact on the Australian economy.Read moreRead less
Developing machining technologies for single crystal gallium oxide. Gallium oxide is a new semiconductor material that can be used to make diodes and transistors with lower loss than silicon (Si), and power electronic devices with lower cost and better performance than silicon carbide (SiC) and gallium nitride (GaN). This project aims to understand the nature of deformation and removal of this unique class of materials during machining. A successful outcome will not only develop an enabling mach ....Developing machining technologies for single crystal gallium oxide. Gallium oxide is a new semiconductor material that can be used to make diodes and transistors with lower loss than silicon (Si), and power electronic devices with lower cost and better performance than silicon carbide (SiC) and gallium nitride (GaN). This project aims to understand the nature of deformation and removal of this unique class of materials during machining. A successful outcome will not only develop an enabling machining technology for this next generation power semiconductor, but new understanding of machining and materials science will be generated.Read moreRead less