Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0882471
Funder
Australian Research Council
Funding Amount
$430,000.00
Summary
Three-Dimensional Optical Laser Velocimetry for the HRNBLWT (High Reynolds Number Boundary Layer Wind Tunnel). The experimental information that can be gained from this infrastructure would lead to significant advances in understanding turbulent flows, which would impact a broad range of engineering and geophysical fields. Some specific examples include the development of efficient turbulence control strategies for the reduction of skin-friction drag and improved combustion processes, resulting ....Three-Dimensional Optical Laser Velocimetry for the HRNBLWT (High Reynolds Number Boundary Layer Wind Tunnel). The experimental information that can be gained from this infrastructure would lead to significant advances in understanding turbulent flows, which would impact a broad range of engineering and geophysical fields. Some specific examples include the development of efficient turbulence control strategies for the reduction of skin-friction drag and improved combustion processes, resulting in not only better fuel efficiency for vehicles but also reduced CO2 and pollutant emissions. Significant advances could also be made in the area of understanding the dispersion of particles, including pollutants, in the atmosphere; wind turbine design and implementation strategies, and climate change modelling.Read moreRead less
The structure of turbulent boundary layers. This research has an enormous impact in many fields of engineering - for example, in aeronautical, mechanical, chemical, meteorological and biomedical engineering. The resulting energy and economic savings and the reduction in atmospheric pollution and greenhouse gasses will ultimately impact on areas such as global climatic change and the energy sustainability of our urban environment, thus influencing the well-being of all people living on this plan ....The structure of turbulent boundary layers. This research has an enormous impact in many fields of engineering - for example, in aeronautical, mechanical, chemical, meteorological and biomedical engineering. The resulting energy and economic savings and the reduction in atmospheric pollution and greenhouse gasses will ultimately impact on areas such as global climatic change and the energy sustainability of our urban environment, thus influencing the well-being of all people living on this planet. This research project will result in technological advancement and provide important training for future generations of researchers. This will entrench the Australian engineering and scientific community as world leaders in this area of scientific research.Read moreRead less
The structure of turbulence at high Reynolds numbers. The aim of this project is to gain a physical understanding of the process of turbulence in fluid motion, focusing on boundary layers adjacent to the surface of bodies, such as submarines and turbines. As turbulence is of fundamental importance in many engineering tasks, developing our understanding of the mechanisms involved will lead to progress in many areas. For example, accurate prediction of drag on vehicles, aircraft and ships, result ....The structure of turbulence at high Reynolds numbers. The aim of this project is to gain a physical understanding of the process of turbulence in fluid motion, focusing on boundary layers adjacent to the surface of bodies, such as submarines and turbines. As turbulence is of fundamental importance in many engineering tasks, developing our understanding of the mechanisms involved will lead to progress in many areas. For example, accurate prediction of drag on vehicles, aircraft and ships, resulting in reductions in fuel consumption. The wind tunnel used in this project is the largest of its type in the world, enabling pioneering experiments to be undertaken which will extend our understanding of the physics of turbulence for applied flows.
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Genesis and evolution of coherent structures in wall-bounded turbulence. This project aims to capture conditions responsible for the generation of the coherent structures that are formed in wall-bounded turbulent flows, through the use of variational data assimilation and adjoint-based optimisation techniques. The project is expected to provide knowledge and intellectual property that is essential for the accurate modelling and prediction of the interaction between the ground-level activities li ....Genesis and evolution of coherent structures in wall-bounded turbulence. This project aims to capture conditions responsible for the generation of the coherent structures that are formed in wall-bounded turbulent flows, through the use of variational data assimilation and adjoint-based optimisation techniques. The project is expected to provide knowledge and intellectual property that is essential for the accurate modelling and prediction of the interaction between the ground-level activities like pollutant emissions and the atmosphere and the flow over vehicles through pipes, turbines and compressors. This project will provide benefits such as reducing the risk in environmental and commercial design and decision making and will facilitate new opportunities for the commercial development of devices to reduce drag and enhance mixing and heat transfer via the direct manipulation of coherent structures.Read moreRead less
Understanding turbulent heat transfer with practical surface conditions. Heat transfer dictates the efficiency of energy and transport systems such as gas turbines, high-speed generators and turbochargers. These are among many applications where heat transfer involves turbulent fluid flow over solid surfaces, but where poor understanding of surface conditions leads to dubious models, suboptimal designs and cost penalties. This project therefore aims to advance our fundamental understanding of he ....Understanding turbulent heat transfer with practical surface conditions. Heat transfer dictates the efficiency of energy and transport systems such as gas turbines, high-speed generators and turbochargers. These are among many applications where heat transfer involves turbulent fluid flow over solid surfaces, but where poor understanding of surface conditions leads to dubious models, suboptimal designs and cost penalties. This project therefore aims to advance our fundamental understanding of heat transfer accounting for the practical surface conditions of roughness, solid-fluid pairing and uneven heating. Building on capabilities that now place systematic data within reach, this project will deliver physics-based models that can robustly predict heat transfer, leading to reduced costs of energy and transport.Read moreRead less
Tailoring aircraft surface textures to minimise drag. This project aims to optimise textured surfaces for reducing fluid dynamic drag. The project builds on recent breakthroughs in drag-evaluation methods and the associated physics. Reducing drag is valuable because it raises the costs of operating aircraft and ships. The intended outcomes are optimal drag-reducing surface textures, a further physical understanding of drag-reduction mechanisms and an improved modelling capability of drag-reducin ....Tailoring aircraft surface textures to minimise drag. This project aims to optimise textured surfaces for reducing fluid dynamic drag. The project builds on recent breakthroughs in drag-evaluation methods and the associated physics. Reducing drag is valuable because it raises the costs of operating aircraft and ships. The intended outcomes are optimal drag-reducing surface textures, a further physical understanding of drag-reduction mechanisms and an improved modelling capability of drag-reducing surfaces. This project is expected to benefit the transport and logistics industries in Australia and globally.Read moreRead less
Surface roughness and its effects on wall-bounded turbulence. Examples in engineering where turbulence is important are: wind tunnel model testing, numerical prediction of turbulent skin friction drag over an aircraft wing, turbulent forces and acoustic field around a submarine or a road vehicle, and the dispersion of pollutants in the atmosphere. Turbulence may also be beneficial, for example, in improving engine combustion and decreasing pollutant emissions. Hence this study will have national ....Surface roughness and its effects on wall-bounded turbulence. Examples in engineering where turbulence is important are: wind tunnel model testing, numerical prediction of turbulent skin friction drag over an aircraft wing, turbulent forces and acoustic field around a submarine or a road vehicle, and the dispersion of pollutants in the atmosphere. Turbulence may also be beneficial, for example, in improving engine combustion and decreasing pollutant emissions. Hence this study will have national benefits in many scientific fields, for example, in fuel savings (economy and energy ), stability of road vehicles (safety and health), noise generation and acoustic signatures of submarines (transforming defence technology and safeguarding Australia).Read moreRead less
Wall Turbulence Drag: Physical Mechanisms and Practicable Control Strategies. The proposed research will build on Australia's well-established strengths in Fluid Mechanics, and aim to establish within Australia world-leading expertise in turbulence control and drag reduction technology. This will have direct benefits to the Australian economy through Tourism (among other industries) by reducing the adverse impact of rising fuel prices on long-distance air travel, on which Australia is disproport ....Wall Turbulence Drag: Physical Mechanisms and Practicable Control Strategies. The proposed research will build on Australia's well-established strengths in Fluid Mechanics, and aim to establish within Australia world-leading expertise in turbulence control and drag reduction technology. This will have direct benefits to the Australian economy through Tourism (among other industries) by reducing the adverse impact of rising fuel prices on long-distance air travel, on which Australia is disproportionately reliant due to its geographic isolation. Efficient turbulence control strategies will also lead to improved combustion processes, resulting in not only better fuel efficiency but also reduced CO2 and pollutant emissions.Read moreRead less
Structure, Dynamics and Control of Wall-Bounded Turbulence. This research has immense impact in engineering and environmental science including aeronautical, mechanical, biomedical engineering, and meteorological science. The energy savings with reduction in carbon dioxide (CO2) emissions resulting from this research and economic benefits will impact directly on global climate change and a sustainable urban environment in Australia. This research will deliver technological advances in complex fl ....Structure, Dynamics and Control of Wall-Bounded Turbulence. This research has immense impact in engineering and environmental science including aeronautical, mechanical, biomedical engineering, and meteorological science. The energy savings with reduction in carbon dioxide (CO2) emissions resulting from this research and economic benefits will impact directly on global climate change and a sustainable urban environment in Australia. This research will deliver technological advances in complex fluid dynamics and instrumentation, in addition to new and exciting training opportunities for future generations of researchers and engineers. This project will secure Australian science and engineering as world leaders in the crucial area of Fluid Dynamics that influences our everyday lives.
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Unravelling the scale interactions of wall turbulence: experiment, physical modelling, next-generation numerical simulation. Turbulent fluid flows near solid surfaces are present in many areas of everyday life: from the drag experienced on air, sea and road vehicles, to governing the mixing processes in combustion chambers, and in the transport of pollutants and particulates in our cities and towns. Unfortunately our understanding of these complex flows is limited, and hence so to is our ability ....Unravelling the scale interactions of wall turbulence: experiment, physical modelling, next-generation numerical simulation. Turbulent fluid flows near solid surfaces are present in many areas of everyday life: from the drag experienced on air, sea and road vehicles, to governing the mixing processes in combustion chambers, and in the transport of pollutants and particulates in our cities and towns. Unfortunately our understanding of these complex flows is limited, and hence so to is our ability to model or control them. This project addresses this problem with the goal of providing new physical insights and models that can be used for efficient and accurate numerical simulations. The simulations will not only compute the average statistics but also the time-varying properties, which are crucial in many engineering and environmental processes.Read moreRead less