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The Use of graphic accelerators in simulation of nonlinear ultrasonic beams with shock fronts on the basis of the Westerwelt equationстатья
- Авторы: Konnova E.O., Khokhlova V.A., Yuldashev P.V.
- Журнал: Acoustical Physics
- Том: 68
- Номер: 6
- Год издания: 2022
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 529
- Последняя страница: 536
- Аннотация: The problem of accelerating the algorithm for calculating nonlinear effects is considered, whenmodeling high-intensity ultrasonic beams based on the one-way Westervelt equation. When constructing anumerical solution for strongly distorted waves with shock fronts, it is necessary to take into account largenumber of harmonics (up to 1000) on spatial grids with a matrix size of the order of 10000 by 10000, whichrequires the processing of large amounts of data and a long calculation time. In this paper, the implementation of the nonlinearity operator is carried out in a time representation using a Godunov-type shock-catchingscheme, which allows modeling nonlinear waves with shock fronts with a small (3) number of grid nodes onthe shock front. The paper compares the efficiency of using this method when it is implemented on centralprocessing units (CPUs) and graphics processing units (GPUs) in comparison with the spectral methodimplemented earlier for quasi-linear wave propagation. An analysis is made of the speed of algorithm execution on the CPU and GPU, depending on the size of the input data arrays.
- Добавил в систему: Коннова Елена Олеговна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | Acoust2206016Konnova.pdf | 901,4 КБ | 17 февраля 2023 [KonnovaElena] |