In this work, we experimentally investigated the cavitation effects on hydrodynamic behavior of a circular cylinder at different cavitating flows. We analyzed dynamics behind using high-speed camera and also measured associated forces load cell. studied around various types regimes such as cloud cavitation, partial inception. addition, three Reynolds numbers: 1 × 105, 1.25 105 1.5 105. The resu...

Cavitation is mostly unwanted in applications due to its unpredictable and distorting effect on fluid flow. On the other hand, modelling expensive terms of time computational power general. Regarding this a tendency for using an open source software such as OpenFOAM emerging promising tool both predicting analyzing cavity formation. With tool, effective reduction license expenses obtained. In s...

Abstract Sonodynamic therapy is a minimally invasive high-intensity focused ultrasound (HIFU) based that combines sonosensitizer and reactive oxygen species (ROS), which are produced by acoustic cavitation. In this paper, we experimentally examined the effectiveness of proposed method scanning focus in direction HIFU propagation for continuously generating cavitation clouds to expand region ROS...

We tested the hypothesis that greater cavitation resistance correlates with less total inter-vessel pit area per vessel (the pit area hypothesis) and evaluated a trade-off between cavitation safety and transport efficiency. Fourteen species of diverse growth form (vine, ring- and diffuse-porous tree, shrub) and family affinity were added to published data predominately from the Rosaceae (29 spe...

The spatiotemporal dynamics of cavitation bubble growth and collapse in shock-wave lithotripsy in a free field was studied experimentally. The lithotripter was equipped with two independently triggerable layers of piezoceramics. The front and back layers generated positive pressure amplitudes of 30 MPa and 15 MPa, respectively, and -10 MPa negative amplitude. The time interval between the launc...

Spool valves are subject to a deteriorated performance and noise due the occurrence of cavitation phenomena. It is well known that effects component causes an unwanted noise. The sound levels influenced by many parameters like geometries opening areas. In this paper simple valve body made in plexiglass has been tested analyzing cavitating area U-grooves. A dedicated test rig equipped with high-...

Plant resistance to xylem cavitation is a major drought adaptation trait and is essential to characterizing vulnerability to climate change. Cavitation resistance can be determined with vulnerability curves. In the past decade, new techniques have increased the ease and speed at which vulnerability curves are produced. However, these new techniques are also subject to new artefacts, especially ...

Introduction The aim of the present study was to assess generation laser-activated irrigation (LAI) with a 9,300-nm CO 2 laser, 455- and 970-nm diode laser as well an 810- 980-nm without carbon-coated “hot-tips” for improved in endodontics. Therefore, formation cavitation bubbles at tip-ends different liquids evaluated compared traditionally applied Er:YAG laser. Methods power settings repetiti...

An ultrasound technique to measure the spatial and temporal behavior of the laser-induced cavitation bubble is introduced. The cavitation bubbles were formed in water and in gels using a nanosecond pulsed Nd:YAG laser operating at 532 nm. A focused, single-element, 25-MHz ultrasound transducer was employed both to detect the acoustic emission generated by plasma expansion and to acoustically pr...