Results 31 to 40 of about 7,121 (217)

CFD Modelling of Pump as Turbine with Various Number of Blade for Microhydro System

Journal of Applied Science & Process Engineering, 2016
Pump as Turbine is an electromechanically component that is largely used in microhydro system. The main advantages of pump as turbine compared to commercially available turbines are lower cost, easier to maintain and readily available. These key features
Mohd Azlan Ismail Ismail, Al Khalid Othman, Hushairi Zen, Mohd Suffian Misran   +3 more
doaj   +1 more source

Experience of applying 3D-scanning and CFD calculations to study and optimization the flow in the impeller of a multi-shaft centrifugal compressor [PDF]

Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение"
The paper presents an analysis of semi-open centrifugal impellers of a three-stage multi-shaft compressor. A 3D-scanning of the geometry of the impellers is carried out, a CFD calculation is carried out at the design operating mode of the compressor ...
E. V. Filimonov, L. N. Marenina, A. A. Drozdov, N. I. Sadovsky   +3 more
doaj   +1 more source

A 57‐Year‐Old Male With Behavioral Variant Frontotemporal Dementia and MATR3 and NOS3 Mutations

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT This report presents a case of behavioral variant frontotemporal dementia caused by mutations in the MATR3 and NOS3 genes, aiming to analyze its clinical manifestations and genetic characteristics. For a case presenting with personality changes and gait abnormalities as the initial symptoms, this study conducted a comprehensive analysis of its
Feifei Lin, Saie Huang
wiley   +1 more source

Feasibility of Nitrogen as a Carrier Gas for Inconel Cold Spray in Hydropower Application

Advanced Engineering Materials, EarlyView.
N2, despite being nearly two orders of magnitude cheaper than He, is a feasible carrier gas for cold spray Inconel coatings in hydropower repair applications when higher gas temperature and pressure are used. Reducing powder size significantly improved cavitation resistance, while the addition of fine chromium carbide particles further enhanced erosion
Tianhao Wang, Mayur Pole, Tingkun Liu, Kenneth A. Ross, Christopher B. Smith   +4 more
wiley   +1 more source

Energy transfer process and evolution characteristics in impeller of contra-rotating axial fan

Meitan kexue jishu
Energy is transferred to the airflow during the rotation of impeller. In engineering, the efficient energy conversion is a key issue. Mastering the energy transfer process in impeller is the premise and basis for realizing efficient energy conversion. In
Yongping CHEN, Ronghua LIU, Shiqiang CHEN, Dong LIU, Yangyi LI, Xiao WANG   +5 more
doaj   +1 more source

Deep Learning-assisted Fluid–structure Interaction for Fatigue Life Analysis of Slurry Pump Impellers in Particulate Two-phase Flow [PDF]

Journal of Applied Fluid Mechanics
Slurry pump impellers operating in particulate solid–liquid flows often experience stress concentration and fatigue failure, limiting their reliability and service life.
Z. Liu, K. Peng, X. Lv, H. Chen, Z. Qu
doaj   +1 more source

Effect of hub inclination angle on internal and external characteristics of centrifugal pump impellers

AIP Advances, 2021
The flow characteristics at a centrifugal pump impeller are significantly affected by the hub inclination angle (HIA). The large eddy simulation turbulence model is employed to simulate the centrifugal pump impeller internal flow at two HIA values under ...
Renfei Kuang, Zhiming Zhang, Shaolong Wang, Xiaoping Chen   +3 more
doaj   +1 more source

Fully 3D‐Printed Wave‐Wound Electromagnetic Motors

Advanced Materials Technologies, EarlyView.
This work presents the first fully 3D‐printed wave‐wound electromagnetic motors, which are created using conductive nanoparticle inks, carbon‐filled nylon polymers, and surface mount components. These motors can achieve a stall torque of 7.62N·mmA−1$7.62 \nobreakspace N{\cdot }mm A^{-1}$ and efficiency of 28.2 %, which approaches the performance of ...
Joseph Schwalbe, Sebastian Mettes, Eduardo Francke, Kenneth W. Allen, Yi Chen Mazumdar   +4 more
wiley   +1 more source

Nonlocomotory Robotic Strategies for Dynamic Rotation Control in Terrestrial Robots: A Review

Advanced Robotics Research, EarlyView.
Terrestrial robots increasingly require rapid body rotation to maintain stability and agility in complex environments. This review shows nonlocomotory rotational control strategies that operate without ground contact, including reaction wheels, tails, bars, limbs, and thrusters.
Y. Liang, J. An, X. Zheng, D. Wang, S. Wang, X. Wang, P. Zhu, J. Pei, S. Li, J. Paripurana, Y. Han, Z. Tang, X. Gan, Q. He, X. Ma   +14 more
wiley   +1 more source

Bending‐Induced Vibrational Landscape Reorganization Governs Energy Dissipation in Perylene Bisimides

Angewandte Chemie, EarlyView.
Gradually bent perylene bisimides (PBIs) isolate structural distortion as the sole variable and exhibit negligible intersystem crossing, uncovering rapid vibrational dephasing as the dominant driver of internal conversion through excited‐state vibrational landscape reorganization.
Wei Zhang, Di Zhao, Byeongjoo Kang, Hui‐Jun Zhang, Yeonju Park, Young Mee Jung, Woojae Kim, Jianbin Lin, Dongho Kim   +8 more
wiley   +2 more sources