Results 21 to 30 of about 3,589 (183)

Vortex and Oil Distribution of Oil-Water Annular Flow through Ball Valve [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2019
The study on the flow behave inside of a ball valve is important for heavy crude oil transportation. Owe to the fast progress of the numerical technique, it becomes an effective way to observe the flows inside a valve and to analyze the flow structure of
Jiang Fan   +3 more
doaj  

Open-source software for modelling of free surface flows

open access: yesТруды Института системного программирования РАН, 2018
Problems of free-surface flow of viscous incompressible fluid are very useful in different practical cases. There are many specifies and limitations in these problems which are critically important for correct solving.
E. . Davydova, V. . Korchagova
doaj   +1 more source

Three-Bladed Horizontal Axis Water Turbine Simulations with Free Surface Effects

open access: yesInternational Journal of Applied Mechanics and Engineering, 2021
The water level above a hydrokinetic turbine is likely to vary throughout the season and even along the day. In this work, the influence of the free surface on the performance of a three bladed horizontal-axis turbine is explored by means of a three ...
L. Rodríguez   +2 more
doaj   +1 more source

Hydrodynamic and Thermodynamic Behavior of Liquid Methane in a Vertical Feed Pipe [PDF]

open access: yesJournal of Applied Fluid Mechanics
During the chill-down procedure for a space application system, a multiphase flow of extremely cold propellants will undoubtedly occur in the feed lines.
K. Raj, P. R. L. Raj
doaj   +1 more source

Computational Investigation of Liquid Holdup and Wetting Efficiency Inside Trickle Bed Reactors with Different Catalyst Particle Shapes

open access: yesApplied Sciences, 2020
Liquid holdup and wetting efficiency are essential parameters for design of trickle bed reactors. Both parameters play an important role in reactor performance including pressure drop, conversion, and heat transfer.
Hao Deng   +4 more
doaj   +1 more source

Inhibition of LncRNA Vof-16 expression promotes nerve regeneration and functional recovery after spinal cord injury

open access: yesNeural Regeneration Research, 2022
Our previous RNA sequencing study showed that the long non-coding RNA ischemia-related factor Vof-16 (lncRNA Vof-16) was upregulated after spinal cord injury, but its precise role in spinal cord injury remains unclear.
Xiao-Min Zhang   +9 more
doaj   +1 more source

Intensification of the Near Wall Collapsing Bubble Induced Jet Using an Opposite Secondary Wall

open access: yesJournal of Fluid Science and Technology, 2008
Effects of an opposite secondary wall for intensification of the liquid jet that is formed through the near wall bubble collapse were numerically investigated. The axisymmetric form of the Navier-Stokes equations was solved to predict the flow conditions
Roozbeh MOUSAVI Belfeh Teymouri   +1 more
doaj   +1 more source

Numerical Wave Simulation Using Geometrical VOF Method Based on OpenFOAM

open access: yesShanghai Jiaotong Daxue xuebao, 2021
Numerical wave simulation is a significant research topic. In this paper, the open source computational fluid dynamics (CFD) platform, OpenFOAM, is utilized to simulate Stokes fifth-order waves.
TIAN Kang   +4 more
doaj   +1 more source

Hybrid VOF–Lagrangian CFD Modeling of Droplet Aerobreakup

open access: yesApplied Sciences, 2022
A hybrid VOF–Lagrangian method for simulating the aerodynamic breakup of liquid droplets induced by a traveling shock wave is proposed and tested. The droplet deformation and fragmentation, together with the subsequent mist development, are predicted by using a fully three-dimensional computational fluid dynamics model following the unsteady Reynolds ...
Viola Rossano, Giuliano De Stefano
openaire   +3 more sources

Physical and numerical modeling for the investigation of downstream scour caused by sudden blockage in circular and box culvert inlets [PDF]

open access: yesJournal of Applied Research in Water and Wastewater
This paper presents a comprehensive experimental and numerical study using non-cohesive uniform sand (d50 = 2 mm). The study investigates the impact of local scour downstream of four model culverts with different barrel shapes and inlet blockage sizes ...
Saeed Gohari, Somayeh Karimpour
doaj   +1 more source

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