Bed shear stress on beach sediment and coastal structures under wave run-up. The aim of this work is to obtain critical new information about the way waves interact with the coast and the damage they can cause to beaches and coastal protection structures. This new data will provide the basis for improved predictions of coastal erosion and better coastal engineering design in the face of sea-level rise and climate change.
Assessing and enhancing the resilience of Australian beaches to sea level rise. Accurate forecasting of coastal recession due to sea level rise is required for planning and the design of coastal defences, but the existing method is widely disputed. With collaboration with world leading research partners, this study will perform unique laboratory experiments to determine the vulnerability of Australian beaches to sea level rise and to test environmentally sustainable measures to increase their re ....Assessing and enhancing the resilience of Australian beaches to sea level rise. Accurate forecasting of coastal recession due to sea level rise is required for planning and the design of coastal defences, but the existing method is widely disputed. With collaboration with world leading research partners, this study will perform unique laboratory experiments to determine the vulnerability of Australian beaches to sea level rise and to test environmentally sustainable measures to increase their resilience. The research will address longstanding uncertainties and significantly enhance the ability of communities to plan for a changing climate. The project will deliver new data and models of immediate benefit to professional engineers to enable robust engineering decisions which enhance the safety of coastal communities.Read moreRead less
Development and validation of an innovative wind stress model to obtain robust storm surge forecasts. Storm surges represent a major ocean flood hazard to coastal communities but present models have large errors, which are often dangerously low. Through international collaboration, this project will collect new field data and develop a new storm surge model which will enhance community safety by ensuring accurate forecasts of ocean flood levels.
Integrated prediction of wave-induced liquefaction for stable breakwater heads. Breakwaters are central to the economies and lifestyles of many coastal areas around the world. The liquefaction of breakwater foundations causes the failure of breakwaters, with potentially deliterious consequences for life and property. The remedies involve large investments in maintenance and cause major disruptions to coastal activities. More accurate and reliable methods for analysing the stability of structures ....Integrated prediction of wave-induced liquefaction for stable breakwater heads. Breakwaters are central to the economies and lifestyles of many coastal areas around the world. The liquefaction of breakwater foundations causes the failure of breakwaters, with potentially deliterious consequences for life and property. The remedies involve large investments in maintenance and cause major disruptions to coastal activities. More accurate and reliable methods for analysing the stability of structures and their foundations is urgently required, and will bring major benefits to Australian coastal facilities. We will create the science to transform our understanding of the mechanisms of wave-induced liquefaction. This will enable engineers to significantly improve the stability and robustness of marine structures.Read moreRead less
Poro-elastic, single domain model of wave-induced transport and transformation of pollutants in coastal sediments. The sediments in many bays and estuaries in Australia are contaminated by pollutants due to discharge of waste from the river, groundwater or/and ocean outfall. Most previous research has had a multi-domain approach and have ignored the wave-dirven advective flow and effects of soil behaviour in coastal sediment. In this study, we will couple the procedure of pollutant transport ne ....Poro-elastic, single domain model of wave-induced transport and transformation of pollutants in coastal sediments. The sediments in many bays and estuaries in Australia are contaminated by pollutants due to discharge of waste from the river, groundwater or/and ocean outfall. Most previous research has had a multi-domain approach and have ignored the wave-dirven advective flow and effects of soil behaviour in coastal sediment. In this study, we will couple the procedure of pollutant transport near the sediment-water interface by a single domain approach, and link wave-dirven advective flow and contaminant in marine sediments. The research outcomes will provide a better prediction of the transformation behaviour of pollutants in contaminated sediments.Read moreRead less
Coupling models for ocean waves, groundwater and porous seabeds interaction. The ocean waves, groundwater flow and porous seabeds interaction problem is vital for erosion control, saltily and biological activities in coastal regions. Most previous research has investigated the problem from individual aspects, rather than a coupling concept. In this study, we will develop advanced theoretical models for procedures of waves propagation, water table fluctuations and soil behaviour in a porous seabe ....Coupling models for ocean waves, groundwater and porous seabeds interaction. The ocean waves, groundwater flow and porous seabeds interaction problem is vital for erosion control, saltily and biological activities in coastal regions. Most previous research has investigated the problem from individual aspects, rather than a coupling concept. In this study, we will develop advanced theoretical models for procedures of waves propagation, water table fluctuations and soil behaviour in a porous seabed, and couple them in a model. A series of experiments will be conducted for the verification of the theoretical findings. The research outcomes will provide a better understanding of the interaction between ocean wave, groundwater flow and porous seabeds.Read moreRead less
Very thin, highly oriented and featured diamond films. The technology for making very thin diamond films, having sculpted surface features and fabricated from tiny and highly oriented individual diamond crystallites, would enable widespread potential applications, including eg surface acoustic wave devices, optical biosensors for ?lab-on-a-chip?, and field emitter arrays for paper thin, bright and wide angle flat panel displays, amongst others. Diamond is uniquely suited to these applications, ....Very thin, highly oriented and featured diamond films. The technology for making very thin diamond films, having sculpted surface features and fabricated from tiny and highly oriented individual diamond crystallites, would enable widespread potential applications, including eg surface acoustic wave devices, optical biosensors for ?lab-on-a-chip?, and field emitter arrays for paper thin, bright and wide angle flat panel displays, amongst others. Diamond is uniquely suited to these applications, and the capability to manipulate film properties and features which is the key requirement, is within grasp.Read moreRead less
Numerical Modelling of Three-dimensional Scour below Offshore Pipelines. Australia's increasing offshore oil and gas exploration has demanded more accurate and reliable methods for evaluating the safety and serviceability of pipelines. Local scour around pipelines is one of the major causes of pipeline failures, and is a major concern in Australian waters. This project not only addresses these concerns in its direct application to the design and management of offshore pipelines, but also will co ....Numerical Modelling of Three-dimensional Scour below Offshore Pipelines. Australia's increasing offshore oil and gas exploration has demanded more accurate and reliable methods for evaluating the safety and serviceability of pipelines. Local scour around pipelines is one of the major causes of pipeline failures, and is a major concern in Australian waters. This project not only addresses these concerns in its direct application to the design and management of offshore pipelines, but also will contribute to the nation's development and competitiveness in offshore exploration, and produce high quality research students. The improved design and management of pipelines in Australian waters will reduce the risk of potential environmental damages caused by leaking gas and oil.Read moreRead less
The origins of human colonization in East Polynesia and their relevance to maritime migration. The Indo-Pacific is a world of islands, including Australia, which was colonized during prehistory in several phases of migration, the last and longest of which was in East Polynesia. Extensive excavation of a large, waterlogged archaeological site of this era in French Polynesia will provide a better understanding of the period, society and external relationships of the early migrants, and of the proc ....The origins of human colonization in East Polynesia and their relevance to maritime migration. The Indo-Pacific is a world of islands, including Australia, which was colonized during prehistory in several phases of migration, the last and longest of which was in East Polynesia. Extensive excavation of a large, waterlogged archaeological site of this era in French Polynesia will provide a better understanding of the period, society and external relationships of the early migrants, and of the processes of prehistoric maritime migration which link Australian peoples to those of our neighbours across the Pacific and Indian Oceans.Read moreRead less
Colonization of the Mariana Islands and its implications for Indo-Pacific prehistory. The Asia-Pacific region, including Australia, is linked by seas and oceans that have been crossed by colonists in ancient as well as recent times. The most significant prehistoric migration was the movement of people out of southern China, into Taiwan, Island Asia and from there into Micronesia and across the Pacific. New investigations of the oldest sites in the Marianas will provide better understanding of ea ....Colonization of the Mariana Islands and its implications for Indo-Pacific prehistory. The Asia-Pacific region, including Australia, is linked by seas and oceans that have been crossed by colonists in ancient as well as recent times. The most significant prehistoric migration was the movement of people out of southern China, into Taiwan, Island Asia and from there into Micronesia and across the Pacific. New investigations of the oldest sites in the Marianas will provide better understanding of early prehistoric maritime capacity, the connections between migrant groups who settled the islands of Asia and Oceania, and the processes of Indo-Pacific colonization. Improved knowledge of our neighbours capabilities and history is of clear national benefit to Australia.Read moreRead less