Results 31 to 40 of about 374 (172)

Transient Hydrodynamic Characteristics of a High-Speed Axial Flow Water-Jet Pump during Variable Speed Process

Journal of Marine Science and Engineering, 2023
To investigate the transient characteristics of high-speed axial flow water-jet pumps during start-up and emergency acceleration as well as to analyze how different accelerations affect the performance of internal flow, the k–ω turbulence model of the ...
Rongsheng Zhu, Wenhao Shi, Gongchang Gan, Huairui Li, Dawei Yang, Yuchen Duan, Qiang Fu   +6 more
doaj   +1 more source

Numerical simulation of turbulent flow between shrouded contra-rotating disks [PDF]

Advances in Mechanical Engineering, 2016
The turbulent flow between shrouded contra-rotating disks was numerically studied with a two-layer turbulence model and a modified Launder–Sharma low-Reynolds number k- ε model. The dissipation rate decrease caused by solid body rotation was considered in the second model.
Shu-Xian Chen, Jing-Zhou Zhang, Xiao-Ming Tan, An-Qing Lai   +3 more
openaire   +2 more sources

Welfare and Felt Duration

Noûs, Volume 60, Issue 3, Page 563-575, September 2026.
ABSTRACT How should we understand the duration of a pleasant or unpleasant sensation, insofar as its duration modulates how good or bad the experience is overall? Given that we seem able to distinguish between subjective and objective duration and that how well or badly someone's life goes is naturally thought of as something to be assessed from her ...
Andreas L. Mogensen
wiley   +1 more source

Analysis of Windage Losses and Velocity Distribution for a Shrouded Rotating Disk [PDF]

Volume 1: Turbomachinery, 1987
An analysis of experimental results was carried out, establishing a direct correlation between measured velocity profiles and windage losses for a rotating disk inside a shrouded stator as typically found in turbomachinery. The analysis gives information on the regions of the rotating and static parts, which have a dominant effect upon ...
openaire   +1 more source

Comparison of a Miniaturized Implantable Two‐Stage Rotodynamic Blood Pump to Equivalent Single‐Stage Concepts

Artificial Organs, Volume 50, Issue 8, Page 1125-1135, August 2026.
This study aims to evaluate the potential of a multistage pump design to enhance hemocompatibility in left ventricular assist devices. We found that the two‐stage concept offers favorable hemolysis measures compared to single‐stage designs, as the reduction in peak shear stresses outweighs the disadvantage associated with prolonged residence time ...
Sarah Linnemeier, Bente Thamsen, Stefan Maric, Bernhard Semlitsch, Benjamin Torner, Daniel Zimpfer, Marcus Granegger   +6 more
wiley   +1 more source

Experimental and Numerical Investigation of a Novel Vortex Reducer in a Co-Rotating Cavity of Aeroengines

Aerospace
Improving airflow pressure is of great significance for the cooling and sealing of aeroengines. In a co-rotating cavity with radial inflow, vortex reducers are used to decrease the pressure drop. However, the performance of traditional vortex reducers is
Wenjie Shen, Suofang Wang, Mengyuan Wang, Jia Suo, Zhao Zhang   +4 more
doaj   +1 more source

Numerical investigation of centrifugal compressor stability enhancement using vaned diffuser endwall contouring technology

Energy Science & Engineering, 2022
To improve the stable operating range of centrifugal compressor stage, endwall contouring technology is introduced on the hub‐side wall of the vaned diffuser for NASA CC3 centrifugal compressor as a promising technique to redistribute the flow field near
Qin Cui, Guoliang Qin, Cheng Jia, Yi Wang, Jian Lei   +4 more
doaj   +1 more source

Accuracy of face scan‐based virtual facebow records: A comparison between two registration methods

Journal of Prosthodontics, Volume 35, Issue 7, Page 1105-1113, August 2026.
Abstract Purpose Accurate maxillary positioning is critical in digital prosthodontics, particularly when transferring the spatial relationship of the maxilla to a virtual articulator. This study aimed to compare the accuracy of the two most common registration methods, three‐dimensional (3D) match and UV (landmark‐based point‐pair registration) match ...
Mario Hertanto, Marcel Hertanto, Zhiqiang Luo, Fei Liu, Luca Lepidi, Junying Li   +5 more
wiley   +1 more source

A New Approach for Solving Rub-Impact Dynamic Characteristics of Shrouded Blades Based on Macroslip Friction Model

Shock and Vibration, 2020
Based on the macroslip friction model, a new dynamic model of the shrouded blades for rotating machinery is developed to study the impact vibration between the adjacent blades.
Guofang Nan, Jianyang Lou, Chuanchong Song, Min Tang   +3 more
doaj   +1 more source

How Signals of Silence Sustain Sexual Harassment and What to Do About It

Human Resource Management, Volume 65, Issue 4, Page 1033-1054, July/August 2026.
ABSTRACT Sexual harassment has persisted for decades as an open secret within organizations, creating an ongoing challenge for Human Resource practitioners. Many employees experience or witness harassment yet say nothing. When they contemplate complaining, they are discouraged from doing so. Some still muster the courage to speak out about these abuses,
Angela L. Workman‐Stark, Zhanna Lyubykh, Ivana Vranjes, Lilia M. Cortina, M. Sandy Hershcovis, Jennifer L. Berdahl, Carla Chrusch   +6 more
wiley   +1 more source