Results 61 to 70 of about 1,215 (207)

Numerical prediction of cavitation inception in centrifugal impellers

European Conference on Turbomachinery Fluid Dynamics and Thermodynamics, 2011
Cavitation is a fundamental issue in pump design since it yields significant decrease of performances and pump life, damaging impeller surfaces and triggering harmful flow instabilities. This topic is usually addressed through costly experimental tests. The aim of this paper is to assess numerical methodologies for the correct evaluation and prediction
Alessandro Marini, SALVADORI, SIMONE, BERNARDINI, CHIARA, INSINNA, MASSIMILIANO, MARTELLI, FRANCESCO, A. Nicchio, Alberto Piva   +6 more
openaire   +3 more sources

Influence Mechanism of Structural Parameters of a Novel Sleeve‐Shaft Counterrotating Hydrodynamic Cavitation Reactor on Cavitation Characteristics and Performance

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study systematically investigates the cavitation characteristics of a novel sleeve‐shaft counterrotating (SSCR) hydrodynamic cavitation reactor using computational fluid dynamics (CFD). Based on the RANS framework combined with the SST k–ω turbulence model and the Zwart–Gerber–Belamri cavitation model, the temporal–spatial evolution of ...
Sitong Guan, Yongxing Song, Peng Zhuang, Jiahui Wang, Zhaoxin Ma, Yi Ge, Weibin Zhang, Jingting Liu   +7 more
wiley   +1 more source

Valorization of Post‐Consumer Waste From Metallized Flexible Packaging and Industrial EPM Waste: Development of Sustainable Composites

Journal of Applied Polymer Science, EarlyView.
Post‐consumer metallized flexible packaging waste and industrial EPM waste are transformed into sustainable composites through mechanical recycling. The incorporation of 30 wt% EPM provides the most favorable balance between stiffness, ductility, and impact resistance, achieving 53.36 kJ/m2.
Tiago O. Oliveira, Samara L. Santos, Ruth M. C. Santana   +2 more
wiley   +1 more source

The petrotympanic canal (Huguier canal): Evolutionary, anatomical, and medical perspectives

The Anatomical Record, EarlyView.
Abstract The petrotympanic canal, traditionally referred to as Civinini's or Huguier's canal, represents an anatomical passage connecting the middle ear and temporomandibular joint (TMJ). Despite its early description, its structural complexity and functional significance have often been underestimated. In this study, we combined historical, anatomical,
Andrea Papini, Nicola Montemurro, Ferdinando Paternostro, Immacolata Belviso, Massimo Galli, Petra Martini, Licia Uccelli, Jacopo Moggi‐Cecchi, Gregorio Oxilia   +8 more
wiley   +1 more source

Photothermal bubble: Dynamics, manipulation, and applications

Droplet, EarlyView.
As a versatile platform for bubble manipulation, photothermal techniques empower diverse operations: planar translation by scanning the laser spot, sustained periodic bouncing from competing thermal and hydrodynamic flows, and even guided 3D trajectories achieved by tailoring the heating configuration.
Man Hu, Feng Wang, Daosheng Deng
wiley   +1 more source

An Experimental Investigation of Coherent Structures and Induced Noise Characteristics of the Partial Cavitating Flow on a Two-Dimensional Hydrofoil

Fluids, 2020
In many practical submerged objects, various types of cavitation such as bubble, sheet, and cloud cavitation occur according to flow conditions. In spite of numerous theoretical, numerical, and experimental studies, there are still many problems to be ...
Byoung-Kwon Ahn, So-Won Jeong, Cheol-Soo Park, Gun-Do Kim   +3 more
doaj   +1 more source

Defect‐Engineered SrTiO3‐x for Flexoelectric‐Dominated Catalysis

EcoEnergy, EarlyView.
Defect‐engineered SrTiO3‐x nanoparticles with enhanced flexoelectricity efficiently degrade pollutants and produce hydrogen under ultrasound‐driven flexocatalysis. This materials–engineering approach offers a scalable pathway for combining environmental remediation and renewable energy applications. ABSTRACT Flexocatalysis provides an alternative route
Yu‐Chun Huang, Yue Jiang, Haotian Wen, Yunlong Sun, Hongyang Ma, Suchen Huang, Yating Ran, Zizheng Song, Xueqing Fang, Zekun Dong, Peiyuan Guan, Chenlu Jiang, Catherine Stampfl, Zibin Chen, Shery L. Y. Chang, Pramod Koshy, Danyang Wang   +16 more
wiley   +1 more source

Numerical Investigation of Tip-Vortex Cavitation Noise of an Elliptic Wing Using Coupled Eulerian-Lagrangian Approaches

Applied Sciences, 2020
In this study, a numerical methodology is developed to investigate the tip-vortex cavitation of NACA16-020 wings and their flow noise. The numerical method consists of a sequential one-way coupled application of Eulerian and Lagrangian approaches. First,
Garam Ku, Cheolung Cheong, Hanshin Seol
doaj   +1 more source

Flow Characteristics and Response Surface Methodology‐Based Pressure‐Loss Prediction Models for the Reverse Circulation Converter in Double‐Wall Drill Pipes

Energy Science &Engineering, EarlyView.
Flow characteristics and pressure loss mechanisms of a reverse circulation converter in dual‐wall drill pipes are systematically investigated using CFD and response surface methodology. The results reveal the dominant role of inertial dissipation and provide a predictive framework for optimizing converter design and operational parameters. ABSTRACT The
Mingming Geng, Hui Zhang, Junpeng Li, Baokang Wu, Geng Zhang, Xinrui Wang, Jintao An, Long Chen, Yiming Ma   +8 more
wiley   +1 more source

Numerical Investigation of Tip Vortex Cavitation Inception and Noise of Underwater Propellers of Submarine Using Sequential Eulerian–Lagrangian Approaches

Applied Sciences, 2020
In this study, the high-fidelity numerical methods are developed to investigate the tip vortex cavitation (TVC) inception and noise of underwater propellers, namely, Model-A and Model-B, which are designed to investigate the effects of sweep angle on ...
Garam Ku, Cheolung Cheong, Ilryong Park, Hanshin Seol   +3 more
doaj   +1 more source