Development of an active noise control system for sleeper seats on large commercial aircraft. Possible avenues will be investigated to actively reduce aircraft cabin noise experienced by passengers in sleeper seats, using localised active noise control (ANC). Previous work has focused on headsets and upright seat headrests which represent a different problem to the partially enclosed sleeper seats considered here. Efficiency and robustness problems that affect existing ANC systems will be addres ....Development of an active noise control system for sleeper seats on large commercial aircraft. Possible avenues will be investigated to actively reduce aircraft cabin noise experienced by passengers in sleeper seats, using localised active noise control (ANC). Previous work has focused on headsets and upright seat headrests which represent a different problem to the partially enclosed sleeper seats considered here. Efficiency and robustness problems that affect existing ANC systems will be addressed. A prototype system will be produced for a business class sleeper seat in a wide body aircraft. A second outcome is the establishment of a robust integrated system design procedure that can be used to quickly develop ANC systems for future designs.Read moreRead less
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
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
Practical wall-turbulence drag reduction through adaptive control. Long term increases in the price of aviation fuel disproportionately impacts on Australian carriers, given our geographic isolation and the resulting greater percentage of long-haul flights. The resulting higher fares will also have a direct impact on international tourism to Australia. One way to reduce the impact of rising fuel cost, and to reduce CO2 and other emissions at the same time, is to decrease drag on aircraft. This ....Practical wall-turbulence drag reduction through adaptive control. Long term increases in the price of aviation fuel disproportionately impacts on Australian carriers, given our geographic isolation and the resulting greater percentage of long-haul flights. The resulting higher fares will also have a direct impact on international tourism to Australia. One way to reduce the impact of rising fuel cost, and to reduce CO2 and other emissions at the same time, is to decrease drag on aircraft. This project will develop understanding in wall turbulence and adaptive control, and use this to experimentally demonstrate active reductions in skin friction drag. The results are equally applicable to a range of other applications including sea transport, pipe flows and combustor designs.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0214172
Funder
Australian Research Council
Funding Amount
$320,000.00
Summary
Measuring highly resolved flow and sound in Australia's largest wind tunnel. Monash and RMIT Universities have developed an aero-acoustic facility of international standing to study flows around vehicles, buildings and structures. This is based around the largest wind tunnel in the Southern Hemisphere, which provides a National facility crucial to the development of a competitive automotive industry. To achieve the next stage of research development, velocities and acoustic fields need to be mea ....Measuring highly resolved flow and sound in Australia's largest wind tunnel. Monash and RMIT Universities have developed an aero-acoustic facility of international standing to study flows around vehicles, buildings and structures. This is based around the largest wind tunnel in the Southern Hemisphere, which provides a National facility crucial to the development of a competitive automotive industry. To achieve the next stage of research development, velocities and acoustic fields need to be measured with increased accuracy and spatial resolution than currently available. Given the physical scale of the facility, it is proposed to achieve this with an automated measurement system, which will also be integral to future research programs.Read moreRead less
Interfacial Nanofluids. The fundamental understanding of Colloid and Surface Chemistry will be significantly enhanced through the understanding of the formation and properties of interfacial nanofluids. In addition, this project will provide the knowledge of the influence of nanofluids on the lubrication and the surface interaction. The future results will likely have great impact on the development of miniature devices, lab-on-a-chip and microfludics or nanofluidics systems, water treatment, m ....Interfacial Nanofluids. The fundamental understanding of Colloid and Surface Chemistry will be significantly enhanced through the understanding of the formation and properties of interfacial nanofluids. In addition, this project will provide the knowledge of the influence of nanofluids on the lubrication and the surface interaction. The future results will likely have great impact on the development of miniature devices, lab-on-a-chip and microfludics or nanofluidics systems, water treatment, minerals processing, the food industries, pumping of fuel and water, and other processes. And the research described in this proposal will help to maintain the high international profile of Australian science in the field of Colloid and Surface Research. Read moreRead less
Development of Carbon Nanotube Nanothermometers and Their Application for Temperature Measurement in the Catalytic Layers of Fuel Cells. The project encompasses cutting-edge work in nanotechnology and advanced materials, covering aspects of carbon nanotubes and their applications, along with fuel cell technology. It will provide unique insights into the phenomena of the nanoworld, including manipulation of nanotubes, and nanoscale oxidation behaviour and temperature measurement. The scientific a ....Development of Carbon Nanotube Nanothermometers and Their Application for Temperature Measurement in the Catalytic Layers of Fuel Cells. The project encompasses cutting-edge work in nanotechnology and advanced materials, covering aspects of carbon nanotubes and their applications, along with fuel cell technology. It will provide unique insights into the phenomena of the nanoworld, including manipulation of nanotubes, and nanoscale oxidation behaviour and temperature measurement. The scientific and engineering understanding acquired through this project is vital for solving the problems that limit the wide application of fuel cells. Ultimately, full commercialisation of fuel cells will provide significant environmental benefits by increasing the use of renewable energy sources and reducing greenhouse gas emissions.Read moreRead less
Ground based monitoring of plasma dynamics in the magnetosphere. We will use a new technique to study the plasmapause, a fundamental and highly dynamic boundary in geospace. This is usually examined using spacecraft and ground-based VLF measurements, but these suffer several limitations. We have developed the ability to monitor plasma density in geospace, by measuring the resonant frequency of geomagnetic field line oscillations. This project will use data from extensive ground magnetometer a ....Ground based monitoring of plasma dynamics in the magnetosphere. We will use a new technique to study the plasmapause, a fundamental and highly dynamic boundary in geospace. This is usually examined using spacecraft and ground-based VLF measurements, but these suffer several limitations. We have developed the ability to monitor plasma density in geospace, by measuring the resonant frequency of geomagnetic field line oscillations. This project will use data from extensive ground magnetometer arrays to thus study the spatial and temporal variation in particle density near the plasmapause. Comparison with VLF and spacecraft measurements will provide new information on the plasma composition and dynamics in this important region.Read moreRead less
DYNAMICS OF EARTH'S RADIATION BELTS. Space weather is produced by rapid variations in wave fields and particle populations in near-Earth space, and has many effects. These include damage to spacecraft (causing operational anomalies and loss of service), degrading the performance of GPS, space-ground, HF radio and cable-based networks, and affecting surveillance radars. The core aim of this project is to improve knowledge of the waves and particles causing these effects. While being important to ....DYNAMICS OF EARTH'S RADIATION BELTS. Space weather is produced by rapid variations in wave fields and particle populations in near-Earth space, and has many effects. These include damage to spacecraft (causing operational anomalies and loss of service), degrading the performance of GPS, space-ground, HF radio and cable-based networks, and affecting surveillance radars. The core aim of this project is to improve knowledge of the waves and particles causing these effects. While being important to aerospace engineers, this work also consolidates Australia's international space profile and provides excellent training in this field. Since space weather causes significant radiation exposure to aircraft crew and passengers this work also has broader ramifications.Read moreRead less
Ring Current and Radiation Belt Dynamics. Outbursts of energy from the Sun manifest themselves as geomagnetic storms in the Earth's magnetosphere. These storms can severely disrupt and damage advanced technological systems operating on the ground and in space. Operational spacecraft may experience anomalies, pipelines in the long term may corrode and the performance of GPS navigational systems, HF (High Frequency) communications systems, mobile/cell telephone networks and defence surveillance ra ....Ring Current and Radiation Belt Dynamics. Outbursts of energy from the Sun manifest themselves as geomagnetic storms in the Earth's magnetosphere. These storms can severely disrupt and damage advanced technological systems operating on the ground and in space. Operational spacecraft may experience anomalies, pipelines in the long term may corrode and the performance of GPS navigational systems, HF (High Frequency) communications systems, mobile/cell telephone networks and defence surveillance radars may be degraded. It is important to understand the magnetospheric conditions contributing to these problems. This research identifies relevant mechanisms. It also enhances Australia's international space research profile, contributes to Australia's future and supports excellent postgraduate training.Read moreRead less