Results 1 to 10 of about 370 (126)
Multiscale and re-entrant surface analysis of multi jet fusion surfaces and the effect of postprocessing via sandblasting [PDF]
Scientific ReportsThe growing use of Multi Jet Fusion (MJF) 3D printing in industry brings challenges related to surface quality and post-processing effects. This study presents a comprehensive analysis of surface geometry changes in MJF-printed parts before and after ...
Patryk Mietliński +6 more
doaj +4 more sources
Investigation of condensation shocks and re-entrant jet dynamics in a cavitating nozzle flow by Large-Eddy Simulation [PDF]
International Journal of Multiphase Flow, 2020 25 pages, 10 figures. Accepted for publication in Int. J.
Theresa Trummler +2 more
exaly +3 more sources
Numerical study on the evolution of cavitating flow and collapse-induced erosion characteristics in high-speed hydraulic tunnel [PDF]
Ultrasonics SonochemistryWhile hydrodynamic cavitation and the associated erosion during cavity collapse have received significant attention, existing research has predominantly focused on small-scale geometries like Venturi tubes.
Bin Liu +3 more
doaj +2 more sources
Interaction between surface blowing and re-entrant jet in active control of hydrofoil cavitation
Ocean Engineering, 2021 Abstract Numerically simulations were performed to study the effect of active flow control (through steady blowing) on unsteady cavitation over a modified scaled-down Francis turbine (hydrofoil). Large eddy simulations (LES) using a one-equation subgrid-scale model and the Sauer & Schnerr cavitation model, all available in OpenFOAM, served as the ...
Chandra Shekhar Pant, Steven H Frankel
exaly +2 more sources
Study on the formation and characteristics of unstable sheet cavitation on hydrofoils [PDF]
Ultrasonics SonochemistryHydrofoils, as fundamental components of hydraulic machinery, directly influence the performance of such machinery. This study conducted an analysis of the cavitation characteristics of hydrofoils at a + 4° angle of attack under various cavitation ...
Lin Wang +3 more
doaj +2 more sources
International Journal of Naval Architecture and Ocean Engineering, 2021 To investigate the supercavity geometry and gas flow structure for the supercavities with two closure types under the different flow conditions, an inhomogeneous multiphase model with the SST turbulence model was established, and validated by ...
Haiyu Xu +4 more
doaj +2 more sources
Cavity length and re-entrant jet in 2-D sheet cavitation [PDF]
WIT Transactions on Engineering Sciences, 2006 n ...
exaly +3 more sources
Energies, 2021 Re-entrant jet causes cloud cavitation shedding, and cavitating vortical flow results in flow field instability. In the present work, a method of water injection is proposed to hinder re-entrant jet and suppress vortex in cloud cavitating flow of a ...
Zhijian Li +3 more
doaj +1 more source
Flow, 2023 The physics and mechanism of sheet/cloud cavitation in a convergent–divergent channel are investigated using synchronized dynamic surface pressure measurement and high-speed imaging in a water tunnel to probe the cavity shedding mechanism.
Changchang Wang, Mindi Zhang
doaj +1 more source
Shanghai Jiaotong Daxue xuebao, 2021 To study the variation characteristic of supercavity shape and gas-leaking mode in the initial generation and development process of a ventilated supercavity, a 3-D numerical model considering the compressibility of the ventilated gas and gravity effect ...
XU Haiyu, LUO Kai, HUANG Chuang, ZUO Zhenhao, GU Jianxiao
doaj +1 more source