Microwave-generated plasma combustion for in-cylinder soot reduction. Microwave-generated plasma combustion for in-cylinder soot reduction. This project aims to develop a microwave-generated plasma combustion system for the in-cylinder formation of hydroxyl radicals, achieving cost-effective reduction of engine-out emissions in diesel engines. This new system should overcome high-load particulate emissions and high-cost fuel injection systems, which limit further improvement of diesel engines. T ....Microwave-generated plasma combustion for in-cylinder soot reduction. Microwave-generated plasma combustion for in-cylinder soot reduction. This project aims to develop a microwave-generated plasma combustion system for the in-cylinder formation of hydroxyl radicals, achieving cost-effective reduction of engine-out emissions in diesel engines. This new system should overcome high-load particulate emissions and high-cost fuel injection systems, which limit further improvement of diesel engines. This project expects to accomplish this by combining laser diagnostics in optical combustion facilities and computational modelling, which should lead to the scientific knowledge accelerating the development cycle of the new system.Read moreRead less
Advanced Combustion Modelling for Scramjets and Rotating Detonation Engines. This project will develop new fundamental knowledge and engineering models underpinning air-breathing high speed propulsion engines employing complex hydrocarbon fuels. Extensive data and new physical understanding will be garnered through analysis of direct numerical simulations of supersonic reacting mixing layers including impinging shock waves. That data will be employed to isolate, test and develop computationally ....Advanced Combustion Modelling for Scramjets and Rotating Detonation Engines. This project will develop new fundamental knowledge and engineering models underpinning air-breathing high speed propulsion engines employing complex hydrocarbon fuels. Extensive data and new physical understanding will be garnered through analysis of direct numerical simulations of supersonic reacting mixing layers including impinging shock waves. That data will be employed to isolate, test and develop computationally efficient engineering models that are accurate and efficient for high speed combustion in rotating detonation engines and scramjets. Expected outcomes are knowledge and tools needed to develop practical and effective supersonic propulsion engines for access to space, defence and high speed point-to-point flight.
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Linkage Infrastructure, Equipment And Facilities - Grant ID: LE200100042
Funder
Australian Research Council
Funding Amount
$340,000.00
Summary
Next generation facility to measure microfluidic flows. Microfluidics is ubiquitous in society - for example, biofluids and engineered lab-on-a-chip platforms. This project aims to establish a novel flow measurement facility tailored for microfluidic flows with capabilities beyond current commercial flow diagnostic systems. This will enable engineers and scientists to probe the fluid dynamics of these flows with unprecedented detail to explain their underlying physical mechanisms. Beyond fluidic ....Next generation facility to measure microfluidic flows. Microfluidics is ubiquitous in society - for example, biofluids and engineered lab-on-a-chip platforms. This project aims to establish a novel flow measurement facility tailored for microfluidic flows with capabilities beyond current commercial flow diagnostic systems. This will enable engineers and scientists to probe the fluid dynamics of these flows with unprecedented detail to explain their underlying physical mechanisms. Beyond fluidic measurement, the facility provides the capacity to accurately observe micro-organisms, biological activity (cell adhesion, thrombus stability, fluorescent receptor markers), thermal collector systems (high flux, microchannel-based solar receivers), and many more mechanical phenomena at the micro-scale.
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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.
Enhancing passive cooling using flexible baffles. The project aims to develop a novel passive strategy using fluid-structure-thermal interactions to enhance passive cooling by natural convection and improve the energy efficiency of engineering systems. Comparing to the existing strategies, the new strategy does not require driving fan or pump and is quiet, reliable, self-adaptive and economical. The Multiphysics embodied in the proposal is at the leading edge of the field. Expected outcomes incl ....Enhancing passive cooling using flexible baffles. The project aims to develop a novel passive strategy using fluid-structure-thermal interactions to enhance passive cooling by natural convection and improve the energy efficiency of engineering systems. Comparing to the existing strategies, the new strategy does not require driving fan or pump and is quiet, reliable, self-adaptive and economical. The Multiphysics embodied in the proposal is at the leading edge of the field. Expected outcomes include advanced understanding of the complex Multiphysics and design rules for enhancing passive cooling by natural convection using flexible baffles. The research is expected to bring direct economic benefit to relevant industry and significant environmental and social benefit to the general public.Read moreRead less
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
Large Scale Natural Convection Boundary Layers with Non-Boussinesq Effects. This proposal aims to understand and predict heat transfer by turbulent natural convection in two scenarios, firstly at very large environmental scales, such as occur on melting Antarctic ice sheets, and secondly convection involving very large temperature differences such as occur in solar thermal power plants and industrial processes. These natural convection flow regimes are incredibly difficult to investigate directl ....Large Scale Natural Convection Boundary Layers with Non-Boussinesq Effects. This proposal aims to understand and predict heat transfer by turbulent natural convection in two scenarios, firstly at very large environmental scales, such as occur on melting Antarctic ice sheets, and secondly convection involving very large temperature differences such as occur in solar thermal power plants and industrial processes. These natural convection flow regimes are incredibly difficult to investigate directly but by focusing on the fundamental dynamics of the turbulent flows using large scale numerical simulations and innovative experiments, the project is expected to develop better analytical and computational models which will underpin improvements in
global ocean models and improve energy efficiency.Read moreRead less
Transport by Natural Convection in Reservoir Sidearms. This project is a first step in developing models of the distribution of water quality parameters in reservoirs by a range of small scale dynamical processes not included in commercial water quality models. Specifically, the project will investigate the transport of suspended materials from the shore to the deeper parts resulting from the interaction of the meteorological forcing and the topography. This will contribute to the development of ....Transport by Natural Convection in Reservoir Sidearms. This project is a first step in developing models of the distribution of water quality parameters in reservoirs by a range of small scale dynamical processes not included in commercial water quality models. Specifically, the project will investigate the transport of suspended materials from the shore to the deeper parts resulting from the interaction of the meteorological forcing and the topography. This will contribute to the development of improved water quality models, and therefore to better management of water quality of Australia's water resources.Read moreRead less
Investigation and optimisation of displacement ventilation and cooling systems. An accurate optimisation design tool for cooling and ventilation will be of considerable benefit to the Australian building/construction industry, and will lead to a reduction in energy consumption, thereby reducing both consumer costs and Australia's total greenhouse gas output, as well as providing Australian industry with a competitive advantage. Turbulence modelling for stratified fluids is one of the grand chall ....Investigation and optimisation of displacement ventilation and cooling systems. An accurate optimisation design tool for cooling and ventilation will be of considerable benefit to the Australian building/construction industry, and will lead to a reduction in energy consumption, thereby reducing both consumer costs and Australia's total greenhouse gas output, as well as providing Australian industry with a competitive advantage. Turbulence modelling for stratified fluids is one of the grand challenge areas of science, and graduate students and postdoctoral researchers trained in this area will be well placed to make a significant contribution to the new technologies needed to address the major environmental problems currently being faced.Read moreRead less
Advances in real-time satellite monitoring of flow in rivers and estuaries. This project plans to improve the monitoring of our waterways by developing a novel moving drifter system that takes flow and water quality measurements along the pathlines of the drifters. One of the key challenges for Australian water management lies in monitoring and managing rivers and estuaries effectively over large geographical areas. Traditionally, instrumentation at stationary points has been used for such monit ....Advances in real-time satellite monitoring of flow in rivers and estuaries. This project plans to improve the monitoring of our waterways by developing a novel moving drifter system that takes flow and water quality measurements along the pathlines of the drifters. One of the key challenges for Australian water management lies in monitoring and managing rivers and estuaries effectively over large geographical areas. Traditionally, instrumentation at stationary points has been used for such monitoring, under the simplifying assumption that a single point adequately represents a very large region of water. By contrast, the Real-Time Flow Logging of Water (RT-FLOW) system expects to provide information from large regions of our waterways, providing stakeholders with more information to enable them to better manage issues including storm surge and erosion. The project also aims to provide improved validation of hydrodynamic models.Read moreRead less