کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
239131 | 465798 | 2007 | 10 صفحه PDF | دانلود رایگان |
Effects of acoustic velocity and attenuation measurements during settling of 43-, 110- and 168-μm glass beads in water are reported. Ultrasonic waves were generated at a frequency of 3.2 MHz. An abrupt increase in acoustic velocity and a sharp peak in the attenuation characterized the onset of settled bed. The observed attenuation peak at the transition between suspended and settled bed was attributed to dissipation caused by viscous absorption losses. The critical concentration at which increase in acoustic velocity and attenuation peak occurred was estimated for these particle sizes.
Effects of acoustic velocity and attenuation measurements during settling of 43-, 110- and 168-μm glass beads in water are reported. An abrupt increase in acoustic velocity and a sharp peak in the attenuation characterized the onset of settled bed. The critical concentration at which increase in acoustic velocity and attenuation peak occurred was estimated for these particle sizes.Figure optionsDownload as PowerPoint slide
Journal: Powder Technology - Volume 177, Issue 2, 15 August 2007, Pages 102–111