کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1269121 972440 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
PIV quantification of the flow induced by an ultrasonic horn and numerical modeling of the flow and related processing times
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
PIV quantification of the flow induced by an ultrasonic horn and numerical modeling of the flow and related processing times
چکیده انگلیسی

The flow in a confined container induced by an ultrasonic horn is measured by Particle Image Velocimetry (PIV). This flow is caused by acoustic streaming and highly influenced by the presence of cavitation. The jet-like experimentally observed flow is compared with the available theoretical solution for a turbulent free round jet. The similarity between both flows enables a simplified numerical model to be made, whilst the phenomenon is very difficult to simulate otherwise. The numerical model requires only two parameters, i.e. the flow momentum and turbulent kinetic energy at the position of the horn tip. The simulated flow is used as a basis for the calculation of the time required for the entire liquid volume to pass through the active cavitation region.


► We measure the flow induced by a sonic horn in a consise volume using PIV.
► We compare the resulting flow with the theoretical flow field of a turbulent free jet.
► we use the results to make a numerical model with few input parameters.
► The results enable the computation of ultrasonic treatment times for many volumes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasonics Sonochemistry - Volume 20, Issue 1, January 2013, Pages 502–509
نویسندگان
, , , ,