Results 51 to 60 of about 158,723 (299)

A Numerical Simulation of the Underwater Supersonic Gas Jet Evolution and Its Induced Noise

open access: yesApplied Sciences, 2023
To explore the complex flow field and noise characteristics of underwater high-speed gas jets, the mixture multiphase model, large eddy simulation method, and Ffowcs Williams–Hawking (FW–H) acoustic model were used for simulations, and the numerical ...
Wei Yu, Baoshou Wang, Chun Zhang
doaj   +1 more source

The Noise Generated by the Collapse of a Cloud of Cavitation Bubbles [PDF]

open access: yes, 1995
The focus of this paper is the numerical simulation of the dynamics and acoustics of a cloud of cavitating bubbles. The prototypical problem solved considers a finite cloud of nuclei that is exposed to a decrease in the ambient pressure which causes the
Brennen, C. E., Wang, Y.-C.
core  

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai   +2 more
wiley   +1 more source

Similarity solution of the shock wave propagation in water [PDF]

open access: yesApplied and Computational Mechanics, 2007
This paper presents the possibility of calculation of propagation of a shock wave generated during the bubble collapse in water including the dissipation effect.
Muller M.
doaj  

Formation of Single Bubbles from a Submerged Orifice Using Pulsed Ultrasound Waves

open access: yesJournal of Fluid Science and Technology, 2008
A new experimental method is presented in which single small gas bubbles are generated in a liquid from a submerged orifice using pulsed ultrasound waves.
Minori SHIROTA   +2 more
doaj   +1 more source

Sagging damage characteristics of hull girder with trapezoidal cross-section subjected to near-field underwater explosion

open access: yesDefence Technology, 2023
To investigate the overall damage characteristics and failure modes of a warship subjected to an underwater non-contact near-field explosion, a hull girder with a trapezoidal cross-section was designed, manufactured, and tested.
Hai-tao Li   +5 more
doaj   +1 more source

Effects of thermal conduction in sonoluminescence [PDF]

open access: yes, 1997
We show by numerical hydrodynamic calculations that there are two important effects of thermal conduction in sonoluminescence: (i) the bubble remains close to being isothermal during the expansion phase; and (ii) a cold, dense layer of air is formed at ...
Chu, M.-C., Leng, D.
core   +2 more sources

Laser Powder Bed Fusion of Copper–Tungsten Composites for Heat Sink Applications in High‐Power Electronics

open access: yesAdvanced Engineering Materials, EarlyView.
This article demonstrates the successful qualification of a copper–tungsten composite for laser powder bed fusion. The resulting components exhibited high density, high thermal conductivity, and reduced thermal expansion. Heat sinks with complex geometries were successfully manufactured, clearly showcasing the material's potential for additive ...
Simon Rauh   +6 more
wiley   +1 more source

Numerical study of real gas effects during bubble collapse using a disequilibrium multiphase model

open access: yesUltrasonics Sonochemistry, 2022
An explicit density-based solver of the Euler equations for inviscid and immiscible gas–liquid flow media is coupled with real-fluid thermodynamic equations of state supporting mild dissociation and calibrated with shock tube data up to 5000 K and 28 GPa.
Saeed Bidi   +4 more
doaj   +1 more source

Two-phase distribution in the vertical flow line of a domestic wet central heating system [PDF]

open access: yes, 2013
The theoretical and experimental aspects of bubble distribution in bubbly two-phase flow are reviewed in the context of the micro bubbles present in a domestic gas fired wet central heating system.
Fsadni, A.M., Ge, Y.T.
core   +2 more sources

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