Discovery Early Career Researcher Award - Grant ID: DE240100933
Funder
Australian Research Council
Funding Amount
$458,183.00
Summary
Noise-reduction mechanisms in jet engines: chevrons are the answer. This project aims to develop new models to study the influence of chevrons on the exhaust of aircraft engines, which is one of the strongest sound sources during take-off. As constant exposure to high-amplitude noise in areas close to airports leads to a myriad of health problems, new strategies have been sought to mitigate this noise component. Chevrons may modify the dynamics of the noise-generating coherent structures, but mo ....Noise-reduction mechanisms in jet engines: chevrons are the answer. This project aims to develop new models to study the influence of chevrons on the exhaust of aircraft engines, which is one of the strongest sound sources during take-off. As constant exposure to high-amplitude noise in areas close to airports leads to a myriad of health problems, new strategies have been sought to mitigate this noise component. Chevrons may modify the dynamics of the noise-generating coherent structures, but most of their parameters are chosen by trial and error, and the mechanism that maximises noise reduction is not clear. By understanding the underlying noise-reduction mechanisms, this project will facilitate the optimal design of quieter exhaust nozzles, ameliorating the effect of aircraft noise on the local community.Read moreRead less
Modelling, Design and Development of a Novel Wave-Energy Converter. Australia has an abundant source of wave-energy commercially untapped due to technical limitations of current wave-energy devices. This project aims to develop a novel wave-energy converter (WEC) that integrates energy capture and electricity generation through a single mechanism. This novel WEC can overcome or significantly reduce the drawbacks of existing WECs, is compact and light-weight (about 30 times less), ensures surviva ....Modelling, Design and Development of a Novel Wave-Energy Converter. Australia has an abundant source of wave-energy commercially untapped due to technical limitations of current wave-energy devices. This project aims to develop a novel wave-energy converter (WEC) that integrates energy capture and electricity generation through a single mechanism. This novel WEC can overcome or significantly reduce the drawbacks of existing WECs, is compact and light-weight (about 30 times less), ensures survivability, and has low-cost installation and maintenance. The project expects to deliver novel theoretical results in fluid-structure interaction, control systems and electrical conversion for WECs and other applications. The WEC will be demonstrated via a tested proof-of-concept physical model.Read moreRead less
Reducing rocket resonance is the key to safer spaceflight. This fellowship considers a particularly dangerous component of rocket launch, which is the potential for destructive feedback loops to form either in the nozzle, or between the nozzle and the launch pad. CI Edgington-Mitchell is a world leader in the study of resonance in jet engines, having developed best-in-field methodologies for the problem. In this innovative fellowship, he will apply these methodologies to better understand the da ....Reducing rocket resonance is the key to safer spaceflight. This fellowship considers a particularly dangerous component of rocket launch, which is the potential for destructive feedback loops to form either in the nozzle, or between the nozzle and the launch pad. CI Edgington-Mitchell is a world leader in the study of resonance in jet engines, having developed best-in-field methodologies for the problem. In this innovative fellowship, he will apply these methodologies to better understand the dangerous resonances that can occur during rocket launch, using a combination of experimental, numerical, and theoretical techniques, in partnership with NASA, Stanford, and the CNRS.Read moreRead less