|
ИСТИНА |
Войти в систему Регистрация |
ИПМех РАН |
||
Numerical Simulation of Melt Droplet - Water Interaction in Steam Explosionsстатья Исследовательская статья
- Авторы: Sivakov N., Yakush S.
- Сборник: Proceedings of 30th International Conference Nuclear Energy for New Europe (NENE2021)
- Год издания: 2021
- Место издания: Društvo jedrskih strokovnjakov Slovenije (Nuclear Society of Slovenia) Ljubljana, Slovenia
- Первая страница: 406.1
- Последняя страница: 406.9
- Номер статьи: 406
- Аннотация: Numerical studies by the volume of fluid (VOF) method are performed for the interaction of hot melt droplet with water initiated by the arrival of a pressure pulse in the ambient water. The shapes of the melt surface and vapor film, as well as the time histories on the volume of vapor in the film are obtained in the parametric studies where the ambient pressure pulse maximum pressure, the growth and decay times were varied. Numerical simulations were performed for a 7.32 mm diameter molten tin droplet at the initial temperature 950 K, immersed in subcooled water with the temperature of 353 K, the initial pressure was 1 bar, the peak pressure was 40 and 80 bar. One to three cycles of vapor film collapse and growth are obtained in the simulations, which is consistent with experimental observations on single droplet steam explosions reported in the literature. Simulations confirmed that impact of water jets on the melt surface can disturb the droplet surfacesignificantly. The simulations emphasize the importance of taking into account the shape of the triggering pressure pulse which can affect the number of vapor bubble oscillations, as well as the melt disturbances and fragmentation.
- Добавил в систему: Якуш Сергей Евгеньевич
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | NENE2021_406.pdf | 761,3 КБ | 26 декабря 2021 [yakush@ipmnet.ru] |