Therapeutic significance in the studies of HIFU-induced effects of is attached to the local heating of tissues, but the role of the mechanical component caused by non-stationary cavitation is practically not taken into account. Calculations show that the temperature inside cavitation bubbles can differ significantly from the temperature in the thermal ablation zone, and the developing temperature gradient can change the formation of the thermal field. Collapsing bubbles can cause mechanical destruction of tissues.
The paper deals with the processes that occur when the hydraulic fluid flows in the channels of the hydraulic block of the brake drive of the open-pit dump truck. The main attention is paid to the phenomenon of cavitation caverns emergence and hydro-mechanical losses depending on the hydraulic fluid parameters and the geometric parameters of hydraulic channels. The SST-HL and SSG turbulence models are presented in this paper. The Rayleigh Plesset cavitation model built into the ANSYS CFX software package is also used.
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