Acoustic cavitation rheometry
نویسندگان
چکیده
Acoustic cavitation generated via high-amplitude ultrasound is used to characterize the high strain-rate mechanical properties of agarose hydrogels.
منابع مشابه
Pattern formation in acoustic cavitation
A new approach for the theoretical description of structure formation in acoustic avitation is developed. The model consists of two coupled partial differential equations describing the spatiotemporal evolution of the sound field amplitude and the bubble concentration. Linear stability analysis and numerical simulation• of the pattern formation are presented. The relation between this approach ...
متن کاملChemical Effects of Acoustic Cavitation
A novel high-frequency, high-power, pilot-plant scale sonochemical reactor was developed and used to study the degradation of dichloromethane, trichloroethylene, phenol, and methyl orange in aqueous solutions. The degradation rates of trichloroethylene, dichloromethane, and phenol were found to exceed those of similar frequency, small-scale bench reactors by factors ranging from 2.5 to 7. The d...
متن کاملNuclear emissions during self-nucleated acoustic cavitation.
A unique, new stand-alone acoustic inertial confinement nuclear fusion test device was successfully tested. Experiments using four different liquid types were conducted in which bubbles were self-nucleated without the use of external neutrons. Four independent detection systems were used (i.e., a neutron track plastic detector to provide unambiguous visible records for fast neutrons, a detector...
متن کاملOn acoustic cavitation of slightly subcritical bubbles
The classical Blake threshold indicates the onset of quasistatic evolution leading to cavitation for gas bubbles in liquids. When the mean pressure in the liquid is reduced to a value below the vapor pressure, the Blake analysis identifies a critical radius which separates quasistatically stable bubbles from those which would cavitate. In this work, we analyze the cavitation threshold for radia...
متن کاملShock-wave model of acoustic cavitation.
Shock-wave model of liquid cavitation due to an acoustic wave was developed, showing how the primary energy of an acoustic radiator is absorbed in the cavitation region owing to the formation of spherical shock-waves inside each gas bubble. The model is based on the concept of a hypothetical spatial wave moving through the cavitation region. It permits using the classical system of Rankine-Hugo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Soft Matter
سال: 2021
ISSN: ['1744-683X', '1744-6848']
DOI: https://doi.org/10.1039/d0sm02086a