Results 51 to 60 of about 14,104 (341)
ABSTRACT Proton exchange membrane fuel cells (PEMFC) are regarded as the best clean energy conversion technology because of their smaller number of emissions and higher efficiency. This numerical investigation used two different flow channel designs—the serpentine flow field (SFF) and the lung serpentine flow field (LSFF)—with active areas of 5 by 5 cm.
Muralikrishna Boni +3 more
wiley +1 more source
Turbulence closure: turbulence, waves and the wave-turbulence transition – Part 1: Vanishing mean shear [PDF]
This paper extends a turbulence closure-like model for stably stratified flows into a new dynamic domain in which turbulence is generated by internal gravity waves rather than mean shear.
H. Z. Baumert, H. Peters
doaj
In this paper, a benchmark study between chemical and biochemical reactors is carried out using Computational Fluid Dynamics (CFD) approach.
Safae Elmisaoui +4 more
doaj +1 more source
ABSTRACT In the pulverized coal boiler industry, reducing NOx emissions has become a critical objective. Although low‐NOx combustion technologies are effective, they may lead to localized high‐temperature corrosion. To address this issue, near‐wall air supply technology has been introduced, which involves injecting an appropriate amount of air near the
Wangyongjia Zhong +4 more
wiley +1 more source
Evaluating k-epsilon with One-Equation Turbulence Model
Peer ...
Rahman, M.M. +3 more
openaire +3 more sources
This paper investigates the accuracy of Reynolds-averaged Navier-Stokes (RANS) turbulence modelling applied to complex industrial applications. In the context of the increasing instability of the energy market, hydropower plants are frequently working at
R. G. Iovănel +2 more
doaj
The presenting paper investigates on the validation of the turbulence intensity (TI) modeled by a CFD tool. Six meteorological masts, equipped with cup anemometers, have been used for the purpose. Three different turbulence closure schemes, which are the
Casella Livio +4 more
doaj +1 more source
Migration and Dispersion Evolution of Exhaled Aerosol in a Ward Under Different Ventilation Modes
ABSTRACT Wards with special functions and closure will have a higher risk of viral transmission as aerosols are an important mode of transmission for the SARS‐CoV‐2 virus. In this study, an experimental platform was built to establish the relevant parameters of the aerosol model and the aerosol propagation model according to the experimental results ...
Jingzhi Zhang +8 more
wiley +1 more source
Flows of natural hydro-environments are usually turbulent and mostly stratified, like the flows in lakes, reservoirs, estuaries and atmosphere to name a few. In stratified flows due to the buoyancy forces, the turbulent stresses are usually non-isotropic.
mohammadreza amiri, Kourosh hejazi
doaj
Investigation of entrance length in circular and noncircular conduits by computational fluid dynamics simulation [PDF]
This study estimated entrance length of circular and noncircular conduits, including circle, triangle, square and hexagon cross-sectional conduit, by using computational fluid dynamics (CFD).
Pimpun Tongpun +2 more
doaj

