Development of mock circulatory system for complex haemodynamic modelling. This project aims to develop a unique mock experimental system to study blood flow dynamics in anatomically realistic coronary artery phantoms. The field of cardiology involves complex fluid dynamic problems, which require the expertise of the fluid dynamics engineer to understand the hemodynamics. Significant innovation in manufacturing and experimental measurement methodologies will be required to develop accurate model ....Development of mock circulatory system for complex haemodynamic modelling. This project aims to develop a unique mock experimental system to study blood flow dynamics in anatomically realistic coronary artery phantoms. The field of cardiology involves complex fluid dynamic problems, which require the expertise of the fluid dynamics engineer to understand the hemodynamics. Significant innovation in manufacturing and experimental measurement methodologies will be required to develop accurate models, which will be designed to allow the partner organisation to undertake further hemodynamic research.Read moreRead less
Microdynamic modelling and analysis of gas fluidization of particle mixtures. The project aims to develop a comprehensive understanding of the mechanisms governing the particle-fluid flow in gas fluidization of mixtures of particles of different sizes. This will be achieved through detailed analysis of the particle-particle and particle-fluid interactions on the basis of the microdynamic or particle scale results generated by the newly developed discrete simulation technique. The microscopic fin ....Microdynamic modelling and analysis of gas fluidization of particle mixtures. The project aims to develop a comprehensive understanding of the mechanisms governing the particle-fluid flow in gas fluidization of mixtures of particles of different sizes. This will be achieved through detailed analysis of the particle-particle and particle-fluid interactions on the basis of the microdynamic or particle scale results generated by the newly developed discrete simulation technique. The microscopic findings will be implemented in the macroscopic, continuum-based modelling and tested by comparing numerical and experimental results. It will significantly enhance the present capability of modelling particle-fluid flow in gas fluidization which is widely used in mineral/chemical industries.Read moreRead less
Wave to Wire: Optimising Hydrodynamic Performance and Capture Efficiency of Next Generation Ocean Wave Energy Systems. Wave energy in the oceans of the world represents a vast renewable energy resource that has not been tapped. This project will play a crucial role in maximising the performance and economic viability of a unique Australian wave energy technology. We will develop a dynamically integrated theoretical model aimed at capturing the complex behaviour of ocean waves and optimising the ....Wave to Wire: Optimising Hydrodynamic Performance and Capture Efficiency of Next Generation Ocean Wave Energy Systems. Wave energy in the oceans of the world represents a vast renewable energy resource that has not been tapped. This project will play a crucial role in maximising the performance and economic viability of a unique Australian wave energy technology. We will develop a dynamically integrated theoretical model aimed at capturing the complex behaviour of ocean waves and optimising the energy capture efficiency of the Oscillating Water Column (OWC) wave energy system. One of the most exciting aspects of the technology is its potential to provide on-site bulk desalination of seawater, whilst being driven entirely by renewable energy. It will also result in significant reductions in greenhouse gas emissions from electricity generation.Read moreRead less
Stability, transition and heat transfer in thermally coupled natural convection boundary layers. Thermally coupled natural convection systems occur when a conducting vertical wall separates two fluids at different temperatures. Such configurations occur, for example, at a window separating the interior of a room from the outside or when a container of fluid is placed in a refrigerator. Improved building heating/cooling and ventilation, and more efficient refrigeration systems, require a thoroug ....Stability, transition and heat transfer in thermally coupled natural convection boundary layers. Thermally coupled natural convection systems occur when a conducting vertical wall separates two fluids at different temperatures. Such configurations occur, for example, at a window separating the interior of a room from the outside or when a container of fluid is placed in a refrigerator. Improved building heating/cooling and ventilation, and more efficient refrigeration systems, require a thorough understanding and predictive capability for these flows. This project will develop experimental, numerical and analytic tools to predict these flows and provide simple scaling relations for bulk flow parameters such as the heat transfer across the wall, which will be of immediate use in the associated industries.Read moreRead less
Enhancement of Heat Transfer by Stimulated Transition to Turbulence in Natural Convection Boundary Layers on Heated Walls. The aim of this project is to increase the heat transfer from heated vertical surfaces to an ambient fluid by stimulating an early transition to turbulence. Such passive heat transfer occurs in heat transfer devices, natural ventilation systems and in many environmental settings. Enhanced heat transfer will greatly improve the performance of these systems. The project will ....Enhancement of Heat Transfer by Stimulated Transition to Turbulence in Natural Convection Boundary Layers on Heated Walls. The aim of this project is to increase the heat transfer from heated vertical surfaces to an ambient fluid by stimulating an early transition to turbulence. Such passive heat transfer occurs in heat transfer devices, natural ventilation systems and in many environmental settings. Enhanced heat transfer will greatly improve the performance of these systems. The project will provide the length scales, frequency and amplification rate for the occurence of the secondary spanwise mode that is the primary mechanism for turbulent transition. This will provide guidance for the development of appropriate roughness elements and heating length and time scales.Read moreRead less
The fluid mechanics of dynamically constricted tubes in pulsatile flow. This project is aimed at advancing the fundamental understanding of flow instability, the transition to turbulence and the effect on wall shear stress, in a dynamically constricted tube flow. The project will provide the first accurately resolved experimental flow analysis, using tomographic particle imaging velocimetry and 3D laser doppler anemometry, conducted on a novel experimental model, and will resolve, for the first ....The fluid mechanics of dynamically constricted tubes in pulsatile flow. This project is aimed at advancing the fundamental understanding of flow instability, the transition to turbulence and the effect on wall shear stress, in a dynamically constricted tube flow. The project will provide the first accurately resolved experimental flow analysis, using tomographic particle imaging velocimetry and 3D laser doppler anemometry, conducted on a novel experimental model, and will resolve, for the first time, turbulence characteristics of the dynamic constriction, using direct numerical simulation with a novel moving boundary implementation. The outcomes will provide the key link between fluid mechanics and wall shear stress, allowing future progress to be made in elucidating the causes of cardiovascular disease.
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Granular dynamics: from discrete simulation towards continuum modelling. The project aims to develop a general averaging theory to link discrete to continuum description of granular dynamics and a comprehensive understanding of the underlying physics. This will be achieved through detailed analysis of the particle-particle and particle-wall interactions at both microscopic and macroscopic levels, supported by the newly developed averaging theory and novel discrete particle simulation. The result ....Granular dynamics: from discrete simulation towards continuum modelling. The project aims to develop a general averaging theory to link discrete to continuum description of granular dynamics and a comprehensive understanding of the underlying physics. This will be achieved through detailed analysis of the particle-particle and particle-wall interactions at both microscopic and macroscopic levels, supported by the newly developed averaging theory and novel discrete particle simulation. The results, in terms of constitutive relations and boundary conditions, will be implemented in continuum-based process modelling and tested by comparing numerical and experimental results via typical case studies. It will significantly enhance the present capability of modelling granular flow that is widely encountered in many industries and in nature.Read moreRead less
Lattice Boltzmann method based simulation of complex microchannels and mixing at micro-scales. The proposed study explores fundamental aspects of microfluidics using new tools, which will enhance the country's database of knowledge. It will lead to the development of a low-cost versatile software package, an important tool for solving microfluidics problems of interest to industries and academics, and will facilitate development and optimization of future microdevices. Further, it will improve A ....Lattice Boltzmann method based simulation of complex microchannels and mixing at micro-scales. The proposed study explores fundamental aspects of microfluidics using new tools, which will enhance the country's database of knowledge. It will lead to the development of a low-cost versatile software package, an important tool for solving microfluidics problems of interest to industries and academics, and will facilitate development and optimization of future microdevices. Further, it will improve Australia's competitiveness in the areas of LBM and MEMS both of which are new techniques with promising applications in their respective areas. The project falls under the National Research Priorities areas of Breakthrough Science and Frontier Technology. The potential applications of the technology encompass several key areas.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
Turbulent fountains in stratified fluids with opposing buoyancy flux. Improved design tools will be developed for use in industries which must deal with turbulent fountains in stratified fluids. These tools will assist in the design of more efficient apparatus, reducing energy consumption and 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 ....Turbulent fountains in stratified fluids with opposing buoyancy flux. Improved design tools will be developed for use in industries which must deal with turbulent fountains in stratified fluids. These tools will assist in the design of more efficient apparatus, reducing energy consumption and 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 will provide continuing service to Australia in many areas of advanced engineering and science. Read moreRead less