Numerical modeling of ultrasound beam forming in elastic medium

• DOI: 10.1016/j.procs.2017.08.034
• Publication Date: 2017-09-02T06:40:43Z
• Authors: Katerina Beklemys...; Alexey Vasyukov; Alexey Ermakov; Alena Favorskaya
• Keywords: 0101 mathematics; 01 natural sciences

Abstract Modeling of ultrasonic pulse in a medium is usually based on the system of equations of acoustics. This approximation means that, when a wave pattern is considered, only longitudinal waves are taken into account. This approach works well in many practically meaningful applications. However, for some cases the consideration of only longitudinal waves is not enough, and an analysis of the complete elastic wave pattern is required. This paper is devoted to the modeling of the formation of an ultrasonic pulse in medium using the system of equations of elasticity instead of the system of equations of acoustics. A transducer with phased array is considered. Grid-characteristic numerical method is used for a numerical solution.