Matched experimental observation and finite-element simulation of flow-induced oscillations in uniform and tapered-stiffness collapsible tubes. Flexible tubes that can be flattened are widespread in the body and can act to limit flow-rate. Limitation is usually associated with spontaneous oscillation (repetitive opening and closing). There are many candidate explanations, but none has been shown to correspond with a given experiment. Through computer models and matched experiments on this couple ....Matched experimental observation and finite-element simulation of flow-induced oscillations in uniform and tapered-stiffness collapsible tubes. Flexible tubes that can be flattened are widespread in the body and can act to limit flow-rate. Limitation is usually associated with spontaneous oscillation (repetitive opening and closing). There are many candidate explanations, but none has been shown to correspond with a given experiment. Through computer models and matched experiments on this coupled system (the fluid flow interacts with the tube shape), we seek to demonstrate for the first time that a given theory/computer model encompasses the physics controlling a given observed oscillation. The solution will find application in other flexible-structure design problems in engineering, and also potentially in medicine.Read moreRead less
Matched experiments and numerical simulations of flow-induced oscillations in uniform and tapered-stiffness collapsible tubes. Flexible tubes that can be flattened are widespread in the body and can act to limit flow-rate. Limitation is usually associated with spontaneous oscillation (repetitive opening and closing). There are many candidate explanations, but none has been shown to correspond with a given experiment. Through computer models and matched experiments on this coupled system (the ....Matched experiments and numerical simulations of flow-induced oscillations in uniform and tapered-stiffness collapsible tubes. Flexible tubes that can be flattened are widespread in the body and can act to limit flow-rate. Limitation is usually associated with spontaneous oscillation (repetitive opening and closing). There are many candidate explanations, but none has been shown to correspond with a given experiment. Through computer models and matched experiments on this coupled system (the fluid flow interacts with the tube shape), we seek to demonstrate for the first time that a given theory/computer model encompasses the physics controlling a given observed oscillation. The solution will find application in other flexible-structure design problems in engineering, and also potentially in medicine.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE120100006
Funder
Australian Research Council
Funding Amount
$600,000.00
Summary
An adaptable and dedicated linear accelerator for medical radiation research. Leading radiation scientists developing innovative methods and devices for treating cancer patients will collaborate in future research using this highly adaptable linear accelerator for medical radiation research. Innovations in tumour targeting, better patient safety, new medical devices and improved cancer outcomes are expected.
Flow-induced oscillation in flexible tubes: experimental and numerical investigation of mechanism and onset. We seek to understand when instability arises in flow over very deformable structures. This will help us to design highly flexible structures specifically either to avoid the danger of flow-induced oscillations, which may be damaging (cardiac surgery, sails, parachutes), or in other circumstances to take advantage of them as an innovative way involving no sliding-parts mechanisms to crea ....Flow-induced oscillation in flexible tubes: experimental and numerical investigation of mechanism and onset. We seek to understand when instability arises in flow over very deformable structures. This will help us to design highly flexible structures specifically either to avoid the danger of flow-induced oscillations, which may be damaging (cardiac surgery, sails, parachutes), or in other circumstances to take advantage of them as an innovative way involving no sliding-parts mechanisms to create vibration, or flow pulsation, or sound, or motion (as in swimming-pool cleaners). Confidence in designing with highly flexible tubes will allow minimal resource consumption in manufacture of products to transport fluids, and will allow design use of the flow limitation property, whereby such a tube can control flow-rate.Read moreRead less
The Scale-up and Evaluation of a Novel Dense Gas Technology Platform for the Production of Particles for Aerosol Drug Delivery. This project provides a unique opportunity to develop an Australian-invented technology in particle engineering, enabling it to enter the international pharmaceutical market. This will enhance the growth of Australia's pharmaceutical research and development, and benefit the Australian pharmaceutical industry. The outcome will also contribute to improvements in the heal ....The Scale-up and Evaluation of a Novel Dense Gas Technology Platform for the Production of Particles for Aerosol Drug Delivery. This project provides a unique opportunity to develop an Australian-invented technology in particle engineering, enabling it to enter the international pharmaceutical market. This will enhance the growth of Australia's pharmaceutical research and development, and benefit the Australian pharmaceutical industry. The outcome will also contribute to improvements in the health and well-being of Australians. The research falls within the Designated National Research Priority of Frontier Technologies for Building and Transforming Australian Industries.Read moreRead less
Enhancing the independence of the severely disabled: Improving the detection rates of an EEG based brain computer interface (BCI). Severe disability costs the Australian economy and society billions of dollars each year and the population of severely disabled is steadily increasing. Also, disability results in impairments that can traumatically alter a person's life. The outcomes of this project will result in substantial national benefits by (i) optimising technology that will greatly improve t ....Enhancing the independence of the severely disabled: Improving the detection rates of an EEG based brain computer interface (BCI). Severe disability costs the Australian economy and society billions of dollars each year and the population of severely disabled is steadily increasing. Also, disability results in impairments that can traumatically alter a person's life. The outcomes of this project will result in substantial national benefits by (i) optimising technology that will greatly improve the life of the disabled by enhancing their ability to control their environment, (ii) situating Australia in the forefront of disability technology research and development, and (iii) enhancing the development of knowledge in research training students in the biomedical area. Read moreRead less