Simulation of three-dimensional nonlinear fields of ultrasound therapeutic arrays

Yuldashev, P.V.; Khokhlova, V.A.

Информация о цитировании статьи получена из Web of Science, Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.

Авторы: Yuldashev P.V., Khokhlova V.A.
Журнал: Acoustical Physics
Том: 57
Номер: 3
Год издания: 2011
Издательство: Maik Nauka/Interperiodica Publishing
Местоположение издательства: Russian Federation
Первая страница: 334
Последняя страница: 343
DOI: 10.1134/s1063771011030213
Аннотация: A novel numerical model was developed to simulate three-dimensional nonlinear fields generated by high intensity focused ultrasound (HIFU) arrays. The model is based on the solution to the Westervelt equation; the developed algorithm makes it possible to model nonlinear pressure fields of periodic waves in the presence of shock fronts localized near the focus. The role of nonlinear effects in a focused beam of a two-dimensional array was investigated in a numerical experiment in water. The array consisting of 256 elements and intensity range on the array elements of up to 10 W/cm2 was considered. The results of simulations have shown that for characteristic intensity outputs of modern HIFU arrays, nonlinear effects play an important role and shock fronts develop in the pressure waveforms at the focus.
Добавил в систему: Хохлова Вера Александровна

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Simulation of three-dimensional nonlinear fields of ultrasound therapeutic arraysстатья

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