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Effects of varying ultrasound parameters on the oscillation of a microbubble near a boundary

Najihah, Mohd Ali and Fatimah, Dzaharudin and Erny Afiza, Alias (2020) Effects of varying ultrasound parameters on the oscillation of a microbubble near a boundary. In: 5th International Conference on Mechanical Engineering Research, ICMER 2019, 30 - 31 July 2019 , Vistana Hotel; Kuantan. pp. 1-8., 788 (1). ISSN 1757-8981 (Print); 1757-899X (Online)

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Abstract

Microbubbles are currently used as ultrasound contrast agents. However, microbubbles have the potential to be used in diagnostic imaging and therapeutic applications. Most numerical work on simulating microbubble oscillation involves modelling microbubbles in infinite medium whereas clinical trials and experiments involve microbubbles near a boundary such as an endothelium and blood vessels. This study will extend previous research by investigating the effects of varying the ultrasound parameters on a microbubble near a boundary. The microbubble oscillation was found to become increasingly irregular as the driving pressure amplitude is increased. The maximum amplitude of oscillation was found to decrease with increasing ultrasound frequency.

Item Type: Conference or Workshop Item (Lecture)
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Dynamics; Nonlinear systems; Vibrations; Ultrasound; Oscillations; Microbubble; Boundary.
Subjects: Q Science > QC Physics
T Technology > T Technology (General)
T Technology > TL Motor vehicles. Aeronautics. Astronautics
Faculty/Division: Institute of Postgraduate Studies
College of Engineering
Faculty of Mechanical and Automotive Engineering Technology
Depositing User: Ms. Ratna Wilis Haryati Mustapa
Date Deposited: 12 Oct 2020 02:30
Last Modified: 12 Oct 2020 02:30
URI: http://umpir.ump.edu.my/id/eprint/29516
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