Design and Numerical Investigation on Octagonal Barge-Type FOWT with Counterweight Suspension System by Yung-Chun Sun, Ray-Yeng Yang

“…It uses SolidWorks for modeling, Ansys AQWA for hydrodynamic calculations, and Orcina OrcaFlex for wind/wave/current coupling dynamic analysis. …”
Get full text

Squeeze Film Dampers Executing Small Amplitude Circular-Centered Orbits in High-Speed Turbomachinery by Sina Hamzehlouia, Kamran Behdinan

“…In this work, the continuity equation and the momentum transport equations for incompressible lubricants are reduced by assuming that the shapes of the fluid velocity profiles are not strongly influenced by the inertia forces, obtaining an extended form of Reynolds equation for the hydrodynamic pressure distribution that accounts for fluid inertia effects. …”
Get full text

RESEARCH ON DYNAMIC CHARACTERSITICS OF LINE CONTACT FRICTION PAIRS UNDER THERMAL EHL STATE by ZHU AnYuan, FANG CongCong, ZHOU Wei, PENG YongDong

“…The line contact elasto-hydrodynamic lubrication (EHL) phenomenon generally exists in key parts of mechanical systems e. g. bearings, gears, the lubricant oil film between the contact interfaces acts as a spring and damper, and the frictional heat generated by the contact between the lubricant and the solids changes the rheological properties of the lubricant, then the dynamics characteristics of the contact pair are affected. …”
Get full text

Dwarf Galaxies in Voids: Dark Matter Halos and Gas Cooling by Matthias Hoeft, Stefan Gottlöber

“…We investigate the formation of dwarf galaxies in voids by hydrodynamical cosmological simulations. Due to the cosmic ultraviolet background radiation low-mass haloes show generally a reduced baryon fraction. …”
Get full text

Global Dynamics of Shaft Lines Rotating in Surrounding Fluids Application to Thin Fluid Films by David Lornage, Georges Jacquet-Richardet

“…The first is composed of a disc and a thin-walled shaft mounted on a hydrodynamic bearing. The second is intended for studying a more realistic structure composed of a shaft and a wheel coupled with a fluid film between the wheel and a casing. …”
Get full text

Understanding earthquake potential for future hazard mitigation by Wahyu Triyoso, Widjo Kongko, Gegar S. Prasetya

Get full text

Optimization of Hydraulic Characteristics in Inlet Area of Fishway at High Flow Rate by ZHANG Jun, ZHANG Zhiguang, KANG Xiangwen, LI Wenyi, ZHENG Tiegang

“…In order to improve the poor effect of attracting fish at the inlet of the fishway, this paper presented an optimization device for hydraulic characteristics in the inlet area of the fishway at a high flow rate and established a three-dimensional hydrodynamic model. The paper also studied the improvement effect of different optimization schemes on the flow conditions for attracting fish at the inlet of the fishway. …”
Get full text

Comprehensive toxicity assessment of silver nanoparticles on Bacteria, human vein endothelial cells, and Caenorhabditis Elegans by Bircan Dinç

“…In this study, it was investigated the effects of AgNPs on bacteria (Escherichia coli and Bacillus subtilis), a model organism (Caenorhabditis elegans), and human vein endothelial cells (HUVECs) at low concentrations (10, 30, and 50 μg/mL).The AgNPs were synthesized using a chemical reduction method and thoroughly characterized, showing a hydrodynamic size of 55 nm, a zeta potential of −57 mV, and thermal decomposition temperatures ranging from 182 to 318 °C. …”
Get full text

Flood Disaster Control in Urban Watersheds Based on a Coupled Model-A Case Study of a Region in Guangzhou by ZHU Bifang, GAO Yanzhe, LAI Chengguang

“…Urban flood disasters have become one of the major disasters affecting urban development.Therefore,studying urban flood disasters is of great practical significance.Taking a region in Guangzhou as an example,this study constructs a coupled hydrodynamic model that comprehensively considers the rivers,the pipe network,and the surface under a holistic view of the watershed system to evaluate the effect before and after flood control measures.The results suggest the following conclusions:① The simulated risk points are basically consistent with those in the static flood risk map,indicating that the results of the constructed coupled model are reasonable.② Under the current conditions,the study area is exposed to a high flood risk in the case of a once-in-a-century rainstorm,and corresponding measures should therefore be taken urgently to mitigate the flood risk in this area.③ The implementation of reconstruction measures,such as pipe network reconstruction and pump station expansion,well alleviates the flood risk in the study area,indicating that the reconstruction scheme is reasonable.The reconstruction of the pump station at the Hengsha Chong Estuary effectively mitigates the waterlogging in downstream Hengsha Chong,which proves that approaching flood disaster control in the watershed from a holistic view of the watershed is more scientific and reasonable.…”
Get full text

Effect of Nitric Acid Concentrations on Synthesis and Stability of Maghemite Nanoparticles Suspension by Irwan Nurdin, Mohd Rafie Johan, Iskandar Idris Yaacob, Bee Chin Ang

“…DLS measurement showed that the hydrodynamic particle sizes decrease with the increasing concentration of nitric acid. …”
Get full text

Theoretical Study of the Pre-Plasma Density Scale Length’s Influence on the Absorption Efficiency in Laser–Solid Interaction at Relativistic Laser Intensities for PW-Class Lasers... by Iuliana-Mariana Vladisavlevici, Michael Ehret, Evgeny Filippov, Enrique García-García, Cruz Mendez, Marta Olivar Ruíz, Óscar Varela, Luca Volpe, Jose Antonio Pérez-Hernández

“…Our modeling results for the pre-plasma expansion due to the laser pedestal of VEGA-3 were benchmarked by hydrodynamic simulations, revealing good agreement for the evolution before the arrival of the main Gaussian laser intensity peak. …”
Get full text

Numerical Modeling of Unsteady Cavitating Flows around a Stationary Hydrofoil by Antoine Ducoin, Biao Huang, Yin Lu Young

“…The results show that it is important to capture both the mean and fluctuating values of the hydrodynamic coefficients because (1) the high amplitude of the fluctuations is critical to capturing the extremes of the loads to ensure structural safety and (2) the need to capture the frequency of the fluctuations, to avoid unwanted noise, vibrations, and accelerated fatigue issues.…”
Get full text

Normal Pressure Hydrocephalus. Case Presentation by María Octavina Rodríguez Roque, Didiesdle Herrera Alonso, Ada Sánchez Lozano, Marines Herrera Rodríguez

“…An adequate valve was selected considering the hydrodynamic characteristics of the derivative system. …”
Get full text

A Study of the Motion Response of Floating Solar PV and Cross-Flow Savonius Turbine in Moored Conditions by Ramsy de Fretes Patrick, Izzuddin Jifaturrohman Mohammad, Putranto Teguh, Aria Pria Utama I Ketut, Huang Luofeng

“…This research examines the influence of variations in the number of mooring lines and wave direction on the hydrodynamic response of FPV systems. Utilizing a catenary mooring system consisting of anchors, mooring lines, floats, and connectors, the study evaluates various configurations to determine the optimal solution for enhanced motion stability. …”
Get full text

Assessment of flood risk under Polder-Type flood control measure using improved projection pursuit model by Li Gao, Yuqin Gao, Yunping Liu, Ming Wu

“…This study proposes an integrated flood risk assessment model combining index-based evaluation, the best worst method, the projection pursuit model optimized by CPSGA, game theory, and the hydrological-hydrodynamic model, which was implemented in the Qinhuai River Basin to assess and zoning the flood risk. …”
Get full text

Synthesis and Physicochemical Properties of Hydrazides of Malonic Acid with Different Substitutes by T.V. Ghochikyan, A.I. Martiryan, G.A. Shahinyan, M.A. Samvelyan, A.S. Galstyan, H․R. Sargsyan, H․H. Ghazoyan

“…From dynamic light scattering measurements the mean hydrodynamic diameters of synthesized molecules is also determined. …”
Get full text

Dynamically induced spatial segregation in multispecies bacterial bioconvection by Oscar Gallardo-Navarro, Rinat Arbel-Goren, Elias August, Gabriela Olmedo-Alvarez, Joel Stavans

“…Our findings suggest that segregation mechanisms are driven by species-specific motile behaviors under conditions of hydrodynamic flow, rather than biochemical repulsion. …”
Get full text

Tilting deformation analysis and instability prediction of arch-locked-segment landslides induced by rainfall by Jingjing Liu, Handong Liu, Jiaming Luo, Jiaxing Chen, Hu Wang

“…The results indicate that the tilting deformation characteristics in the locked segment are consistent with the variation in its strain, stress, hydrodynamic responses, and slope morphology, suggesting that tilting deformation can serve as a novel monitoring approach for landslide instability. …”
Get full text

Designing Dynamic Delivery Parking Spots in Urban Areas to Reduce Traffic Disruptions by Mireia Roca-Riu, Jin Cao, Igor Dakic, Monica Menendez

“…With this concept, based on the time-varying traffic demand, the area allowed for delivery parking changes over time in order to maximize delivery opportunities while reducing traffic disruptions. Using the hydrodynamic theory of traffic flow, we analyze the traffic discharging rate on an urban link with DDPS. …”
Get full text

Transverse optical gradient force in untethered rotating metaspinners by Einstom Engay, Mahdi Shanei, Vasilii Mylnikov, Gan Wang, Peter Johansson, Giovanni Volpe, Mikael Käll

“…Consequently, when two or more metaspinners are trapped together in a laser beam, they collectively orbit the optical axis in the opposite direction to their spinning motion, in stark contrast to rotors coupled through hydrodynamic or mechanical interactions. The metaspinners delineated herein not only serve to illustrate the vast possibilities of utilizing optical metasurfaces for fundamental exploration of optical torques, but they also represent potential building-blocks of artificial active matter systems, light-driven micromachinery, and general-purpose optomechanical devices.…”
Get full text