A three-dimensional simulation of the effects of obstacle blockage ratio on the explosion wave in a tunnel
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Thermal Analysis and Calorimetry"
DOI: 10.1007/s10973-020-09777-7
Abstract: In this paper, a three-dimensional simulation has been performed to investigate the potential consequences of flammable vapor explosion in a tunnel with an obstacle, the obstacle with different area blockage ratios (10, 20, 30 and… read more here.
Keywords: tunnel; blockage ratio; obstacle; blockage ... See more keywords
Effect of blockage ratio on the existence of multiple waves in rotating detonation engine
Sign Up to like & getrecommendations! Published in 2019 at "Acta Astronautica"
DOI: 10.1016/j.actaastro.2019.08.007
Abstract: Abstract The effect of blockage ratio on the existence of multiple waves in rotating detonation engine was investigated through experimental approach. It has been shown experimentally that four typical detonation propagation modes (single wave, hybrid… read more here.
Keywords: rotating detonation; ratio; multiple waves; blockage ... See more keywords
Velocity behavior downstream of perforated plates with large blockage ratio for unstable and stable detonations
Sign Up to like & getrecommendations! Published in 2019 at "Aerospace Science and Technology"
DOI: 10.1016/j.ast.2019.01.010
Abstract: Abstract Due to the excellent thermal propulsion performances of detonation, it has been applied for the purpose of aerospace propulsion devices, e.g., pulse detonation engines (PDEs), rotating detonation engines (RDEs), and oblique detonation wave engines… read more here.
Keywords: propagation; perforated plates; detonation; velocity behavior ... See more keywords
Experimental investigation on a rotating detonation cycle with burned gas backflow
Sign Up to like & getrecommendations! Published in 2021 at "Combustion and Flame"
DOI: 10.1016/j.combustflame.2020.10.048
Abstract: Abstract To analyze a rotating detonation cycle (RDC) with burned gas backflow, simultaneous self-luminous visualization, pressure, and thrust measurements with gaseous ethylene and oxygen were performed. Three different geometric blockage ratios (bottom-wall-surface area to cross-sectional… read more here.
Keywords: blockage ratio; burned gas; detonation; geometric blockage ... See more keywords
Some new characteristics of the confined flow over circular cylinders at low reynolds numbers
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Heat and Fluid Flow"
DOI: 10.1016/j.ijheatfluidflow.2020.108741
Abstract: Abstract This study summarises some new characteristics of the fluid flow over a confined circular cylinder at low Reynolds numbers. Results from both two- and three-dimensional direct numerical simulations are presented at blockage ratio between… read more here.
Keywords: three dimensional; reynolds number; blockage ratio; blockage ... See more keywords
Investigation of the effect of blockage ratio on flow and heat transfer in the wake region of a cylinder embedded in a channel using whole field dynamic measurements
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Thermal Sciences"
DOI: 10.1016/j.ijthermalsci.2020.106322
Abstract: Abstract Non-intrusive field measurements in the wake region of a circular adiabatic cylinder fitted in a channel are reported. The top wall of the channel is subjected to constant heat flux while maintaining the bottom… read more here.
Keywords: blockage ratio; cylinder; blockage; heat transfer ... See more keywords
Steady viscoelastic flow around high-aspect-ratio, low-blockage-ratio microfluidic cylinders
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Non-newtonian Fluid Mechanics"
DOI: 10.1016/j.jnnfm.2018.02.009
Abstract: Abstract We employ a state-of-the-art microfabrication technique (selective laser-induced etching, SLE) to produce microfluidic cylinder geometries that explore new geometrical regimes. Using SLE, two microchannels are fabricated in monolithic fused silica substrate with height H… read more here.
Keywords: aspect ratio; blockage ratio; ratio; cylinder ... See more keywords
Temperature distribution in a blocked tunnel with one closed portal under natural ventilation
Sign Up to like & getrecommendations! Published in 2021 at "Tunnelling and Underground Space Technology"
DOI: 10.1016/j.tust.2020.103752
Abstract: Abstract A new tunnel with closed portal has been constructed in the real project, most of current research on fire smoke movement are focus on traditional tunnel with two opening portals. In this paper, 44… read more here.
Keywords: blockage ratio; closed portal; tunnel; temperature ... See more keywords
Study on the Influence of Vent Shape and Blockage Ratio on the Premixed Gas Explosion in the Chamber with a Small Aspect Ratio
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.2c02367
Abstract: Given the current situation of deflagration caused by gas leakage for domestic use and the study of the single shape of the vent, the differential change law of vent parameters on the small aspect ratio… read more here.
Keywords: blockage ratio; flame; shape; explosion ... See more keywords
Effect of blockage ratio on flow of a viscoelastic wormlike micellar solution past a cylinder in a microchannel
Sign Up to like & getrecommendations! Published in 2022 at "Soft Matter"
DOI: 10.1039/d2sm01162j
Abstract: We present experiments on the flow of a viscoelastic wormlike micellar solution around cylinders (radius R) confined in straight microchannels (width W). Thirteen flow geometries are tested where the blockage ratio is varied over a… read more here.
Keywords: blockage ratio; flow viscoelastic; flow; viscoelastic wormlike ... See more keywords
CFD study of blockage ratio and boundary proximity effects on the performance of a tidal turbine
Sign Up to like & getrecommendations! Published in 2019 at "IET Renewable Power Generation"
DOI: 10.1049/iet-rpg.2018.5134
Abstract: The effects of blockage ratio and boundary proximity on tidal turbine performance are quantified in this study using computational fluid dynamics (CFD). Reynold averaged Navier–Stokes (RANS) equations are solved using the commercial CFD code ANSYS… read more here.
Keywords: performance; turbine; ratio boundary; blockage ... See more keywords