Results 101 to 110 of about 2,953 (220)
Petascale simulations of cloud cavitation collapse
, 2021 The generation of a gaseous bubble, its violent collapse and rebound in a liquid that we believe is almost incompressible is another beauty of nature known as cavitation. The phenomenon appears in a wide range of applications---desired or undesired---where it is observed in arrangements involving not just one but many bubbles, broadly termed cloud
openaire +2 more sources
Experimental Study of Cavitation in a Kaplan Model Turbine
, 2001 The cavitation processes present in a Kaplan model turbine was studied with the aim to identify mechanisms that promote erosive cavitation. The studies were carried out with high-speed filming, video filming and visual observations with stroboscopic ...
Grekula, M., Bark, G.
core
Cloud cavitation with particular attention to pumps [PDF]
, 2008 In many cavitating liquid flows, when the number and concentration of the bubbles exceeds some critical level, the flow becomes unsteady and large clouds of cavitating bubbles are periodically formed and then collapse when convected into regions of ...
Brennen, Christopher E.
core
Experimental study on the influence of air injection on unsteady cloud cavitating flow dynamics
Advances in Mechanical Engineering, 2016 The main purpose of this study was to investigate the influence of air-injection technique on unsteady cloud cavitating flow dynamics. High-speed camera and pressure measurement system are used to record ventilated cavitation images and wall-pressure ...
Naimin Zhang +3 more
doaj +1 more source
Bubbly cloud dynamics and cavitation [PDF]
, 2007 In many cavitating liquid flows, when the number and concentration of the bubbles exceeds some critical level, the flow becomes unsteady and large clouds of cavitating bubbles are periodically formed and then collapse when convected into regions of ...
Brennen, Christopher E.
core
Polymer TestingThe submerged cavitation water jet (SCWJ) is a promising technology for removing solid propellant from old solid rocket engines and recycling them. In this study, the feasibility of using SCWJ to break solid propellant is investigated.
Wenjun Zhou +3 more
doaj +1 more source
Applied Sciences, 2019 Cavitation is a complex multiphase flow phenomenon that is usually involved in marine propulsion systems, and can be simulated with a couple of methods.
An Yu, Qinghong Tang, Daqing Zhou
doaj +1 more source
Characterisation of the acoustic cavitation cloud by two laser techniques
Ultrasonics Sonochemistry, 1999 An experimental investigation of the size and volumetric concentration of acoustic cavitation bubbles is presented. The cavitation bubble cloud is generated at 20 kHz by an immersed horn in a rectangular glass vessel containing bi-distilled water. Two laser techniques, laser diffraction and phase Doppler interferometry, are implemented and compared ...
F, Burdin +4 more
openaire +2 more sources
Inertia controlled instability and small scale structures of sheet and cloud cavitation [PDF]
, 2009 The present investigation focuses on the numerical simulation of inertia driven dynamics of 3-D sheet and cloud cavitation on a 2-D NACA 0015 hydrofoil.
Schmidt, Steffen J. +2 more
core
Applied Sciences, 2018 One of the main causes of damage in hydraulic turbines is cavitation. While not all cavitation appearing in a turbine is of a destructive type, erosive cavitation can severely affect the structure, thus increasing maintenance costs and reducing the ...
David Valentín +4 more
doaj +1 more source