Results 41 to 50 of about 279,983 (306)

A Water Hammer Protection Method for Mine Drainage System Based on Velocity Adjustment of Hydraulic Control Valve

open access: yesShock and Vibration, 2016
Water hammer analysis is a fundamental work of pipeline systems design process for water distribution networks. The main characteristics for mine drainage system are the limited space and high cost of equipment and pipeline changing.
Yanfei Kou, Jieming Yang, Ziming Kou
doaj   +1 more source

Study of closing time pattern and type of valve on water hammer phenomenon in water conveyance line [PDF]

open access: yesمدل‌سازی پیشرفته در مهندسی عمران
Water hammer is a phenomenal that occures due to suddenly pump stop and closure of valve in transmission pipelines and urban water distribution network. This phenomenon is important in transmission pipelines project and ignore this phenomenon can cause a
Hadis Ghanbari   +2 more
doaj   +1 more source

RELAP5 application for water hammer analysis in different thermal-hydraulic systems

open access: yesInternational Journal of Thermofluids, 2022
The water hammer phenomenon investigations employing RELAP5 code with one-dimensional two-fluid six-equation models of water and steam flow were performed and the main results shared in this paper.
Algirdas Kaliatka   +3 more
doaj   +1 more source

Ironwork of Teixois-Taramundi (Asturias) Spain [PDF]

open access: yes, 2001
This paper describes an old ironwork placed in a Spanish village. All parts of it are studied, specially the Air supply and the Hydraulic wheel. The minimum area in the water trump for a correct air flow is calculated.
Blanco, E.   +4 more
core  

Full dimensional (15D) quantum-dynamical simulation of the protonated water-dimer II: infrared spectrum and vibrational dynamics

open access: yes, 2007
The infrared absorption spectrum of the protonated water dimer (H5O2+) is simulated in full dimensionality (15D) in the spectral range 0-4000 cm-1. The calculations are performed using the Multiconfiguration Time-Dependent Hartree (MCTDH) method for ...
Gatti, Fabien   +2 more
core   +3 more sources

4D‐Printed Magneto‐Plasmonic Microrobots for Programmable Spatiotemporal De‐Icing

open access: yesAdvanced Functional Materials, EarlyView.
A 4D‐printing strategy is introduced to achieve programmable de‐icing devices. By aligning gold–magnetite nanofillers within a photosensitive resin, the printed structures exhibit dual magnetic and plasmonic functionalities, enabling precise spatio‐temporal ice removal through thermoplasmonic effects.
Amélie Pérot   +7 more
wiley   +1 more source

A Simulation Calculation Method of a Water Hammer with Multpoint Collapsing

open access: yesEnergies, 2020
The traditional discrete vapor cavity model (DVCM) is widely used in water hammer simulation. Water column separation in pipelines is usually predicted with this model.
Li Zhao   +5 more
doaj   +1 more source

Unveiling the Role of Curvature in Carbon for Improved Energy Release of Ammonium Perchlorate

open access: yesAdvanced Materials, EarlyView.
High‐curvature carbon materials identified via machine learning and simulation can enhance the heat release and combustion performance of ammonium perchlorate. ABSTRACT The catalytic role of carbon curvature in the thermal decomposition of ammonium perchlorate (AP) remains largely unexplored. To address this gap, this study employs machine learning and
Dan Liu   +8 more
wiley   +1 more source

Simulation study of pressure wave fluctuation law along fracture under water hammer effect

open access: yesMeikuang Anquan
In order to analyze the effect of water hammer effect on the propagation law of pulsating water pressure in the fissure, based on the one-dimensional transient flow model with water hammer equation of motion and continuity equation, the jump and ...
Jinqi FU, Jun NIAN, Wenxu CHENG
doaj   +1 more source

Light‐Induced Entropy for Secure Vision

open access: yesAdvanced Materials, EarlyView.
This work realized a ternary true random number generator by exploiting stochastic traps emerging within multiple junction interfaces, and quantitatively validated the generation of high‐quality random numbers. Furthermore, it successfully demonstrated diverse applications, including AI‐resilient image security, thereby providing a valuable guide for ...
Juhyung Seo   +9 more
wiley   +1 more source

Home - About - Disclaimer - Privacy