Results 31 to 40 of about 41,214 (305)

Investigation of Cavitation Noise in Cavitating Flows around an NACA0015 Hydrofoil

open access: yesApplied Sciences, 2019
To provide theoretical basis for cavitation noise control, the cavitation evolution around a hydrofoil and its induced noise were numerically investigated.
An Yu   +5 more
doaj   +1 more source

Velocity exponent and cavitation number for Venturi cavitation erosion of 1100-O aluminum and 1018 carbon steel [PDF]

open access: yes, 1982
The purpose of the present investigation is to evaluate the effect of Venturi throat velocity on the cavitation erosion of specimens for constant cavitation number, which is here based on Venturi discharge conditions.
He, Jiu-Gen, Hammitt, Frederick G.
core   +1 more source

Experimental Study on the Unsteady Natural Cloud Cavities: Influence of Cavitation Number on Cavity Evolution and Pressure Pulsations

open access: yesJournal of Marine Science and Engineering, 2021
High-speed underwater vehicles are subjected to complex multiphase turbulent processes, such as the growth, development, shedding, and collapse of cavitation bubbles.
Tiezhi Sun   +3 more
doaj   +1 more source

Analysis of the cavitating flow induced by an ultrasonic horn – Experimental investigation on the influence of actuation phase, amplitude and geometrical boundary conditions

open access: yesEPJ Web of Conferences, 2014
Till today, factors influencing the formation and collapse of densely distributed, interacting cavitation bubbles are only qualitatively understood.
Müller Saskia   +4 more
doaj   +1 more source

Study on the effect of the pressure characteristics of the cone throttle on the cavitation

open access: yesThe Journal of Engineering, 2018
According to the cone-type throttle valve is prone to cavitation, resulting in the reduction in the performance of the cone throttle valve. Here, a visual experimental platform for hydraulic cavitation is built, and the cavitation number of the conical ...
Jian Zhang   +3 more
doaj   +1 more source

Analytical Description of an Axisymmetric Supercavitation Bubble in a Viscous Flow

open access: yesJournal of Marine Science and Engineering, 2022
One of the basic elements which characterizes flow regimes, is viscosity. This element has typically been neglected in research on supercavitational flows, describing and predicting supercavitation bubbles geometry and formation using non-viscous ...
Lotan Arad Ludar, Alon Gany
doaj   +1 more source

Similarity Law on Shedding Frequency of Cavitation Cloud Induced by a Cavitating Jet

open access: yesJournal of Fluid Science and Technology, 2012
In order to clarify the mechanism of cavitation cloud shedding, the shedding frequencies of cavitation clouds were investigated by high-speed observations and image analysis. The results indicate that the shedding frequency follows the similarity law for
Satoshi NISHIMURA   +2 more
doaj   +1 more source

Cavitation Performance of Cylindrical Choke. Critical Cavitation Number in unsteady Flow.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1991
This paper deals with an experimental study on the unsteady performance in the cylindrical choke of the oil hydraulic. Experiments are carried out under an unsteady flow in which the outlet pressure p2 of the cylindrical choke takes the form of a trapezoid varying with time, keeping the inlet pressure p1 constant. It is found that as the absolute value
AOYAMA, Yuri   +4 more
openaire   +1 more source

Slip Localization Intensification Mediated by Grain Boundary Sliding in a Polycrystalline Nickel‐Based Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
The temperature dependence of fatigue behavior in nickel‐based superalloys is investigated through high‐resolution measurements of plastic localization. While increasing temperature reduces localization and enhances fatigue performance in René 88DT, Inconel 718 exhibits a sharp degradation at intermediate temperature due to intensified slip ...
M. Calvat   +5 more
wiley   +1 more source

Evaluation of Plasticity and Creep Parameters From Tensile Stress–Strain Data for a Range of Strain Rates

open access: yesAdvanced Engineering Materials, EarlyView.
This plot compares experimental tensile stress–strain curves (with 4 different strain rates) and corresponding modelled curves (obtained using the optimised sets of Voce and Miller–Norton parameter values shown). The inferred M‐N values, characterizing the creep, are very similar to those obtained via conventional creep testing.
S. Ooi, R. P. Thompson, T. W. Clyne
wiley   +1 more source

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