Results 21 to 30 of about 777,065 (243)
Designing HVDC GIS/GIL spacer to suppress charge accumulation
High Voltage, 2022 To suppress the charge accumulation on the spacer surface in direct current (DC) gas insulated transmission line (GIL) is an important and emergent issue for the development of a clean, safe and economic smart grid.
Zuodong Liang +10 more
doaj +1 more source
Preliminary numerical study of single bubble dynamics in swirl flow using volume of fluid method
Nuclear Engineering and Technology, 2021 Spacer grid with mixing vane had been widely used in nuclear reactor core. One of the main feather of spacer grid with mixing vane was that strong swirl flow was formed after the spacer grid.
Zhongchun Li +6 more
doaj +1 more source
Validation for CFD Simulation in Rod Bundles With Split-Vane Spacer Grids Based on LDA Measurement
Frontiers in Energy Research, 2020 Laser Doppler anemometry (LDA) measurement of axial flow velocity and pressure drop measurement has been carried out in a 5 × 5 rod bundle installed with two split-mixing-vane grids. The measured results are utilized to validate the CFD simulation.
Jinbiao Xiong, Chuan Lu, Wenhai Qu
doaj +1 more source
Modeling and Simulation Analysis on Mixing Characteristics of Two-Phase Flow Around Spacer Grid
Frontiers in Energy Research, 2022 The spacer grid has a significant impact on the thermal-hydraulic characteristics of the rod bundle channel, which directly determines the possibility of a boiling crisis.
Y. Xiao +5 more
doaj +1 more source
A Middleware Independent Grid Workflow Builder for Scientific Applications [PDF]
, 2009 particular workflow engines built into Grid middleware, or are application specific and are designed to interact with specific software implementations.
Johnson, David +2 more
core +2 more sources
Development and Assessment of Spacer Grid Model in COSINE Multiphase Subchannel Code
Yuanzineng kexue jishuThe spacer grid models are important models for simulating the thermal-hydraulics phenomena during reflooding process. The spacer grid pressure drop model, wall heat transfer enhancement model, interfacial heat transfer enhancement model, droplet ...
CHEN Lin, ZHANG Hao, DUAN Bingqi, MA Qichao, ZHOU Fanfan, YANG Yanhua, ZHAO Meng
doaj +1 more source
Grid-spacer removal model. [PWR; BWR]
, 1982 A model has been developed for SCDAP to treat the effect of grid spacer removal. The model simply tests the grid temperature against the melting temperature of the grid spacer material.
Berna, G. A.
core +1 more source
Numerical Investigation on the Flow Characteristics in a 17 × 17 Full-Scale Fuel Assembly
Energies, 2020 In a previous study, several computational fluid dynamics (CFD) simulations of fuel assembly thermal-hydraulic problems were presented that contained fewer fuel rods, such as 3 × 3 and 5 × 5, due to limited computer capacity. However, a typical
Zihao Tian +6 more
doaj +1 more source
Acta Polytechnica, 2015 CFD is a promising and widely spread tool for a flow simulation in nuclear reactor fuel assemblies. One of the limiting factors is the complicated geometry of a spacer grid.
Jakub Juklíček, Václav Železný
doaj +1 more source
Numerical and experimental investigation of the water flow through PWR spacer grids
Brazilian Journal of Radiation Sciences, 2021 Spacer grids are one of main components of a Pressurized Water Reactor (PWR) fuel assembly. They are able to improve heat transfer from rod bundles to the water flow by increasing turbulence and mixture of this flow.
Higor Fabiano Pereira de Castro +8 more
doaj +1 more source