Statistics-based method for determination of drag coefficient for nonlinear porous flow in calcareous sand soil
Sign Up to like & getrecommendations! Published in 2018 at "Bulletin of Engineering Geology and the Environment"
DOI: 10.1007/s10064-018-1330-6
Abstract: Generally, drag force applied by soil particles to seeping pore water is described as a type of body force in the form of hydraulic gradient I. For steady porous flow, the hydraulic gradient was widely… read more here.
Keywords: methodology; sand soil; drag coefficient; calcareous sand ... See more keywords
An experimental investigation on inertia motion and deformation of Boger drops falling through Newtonian media
Sign Up to like & getrecommendations! Published in 2019 at "Meccanica"
DOI: 10.1007/s11012-019-00961-0
Abstract: In the present study, deformations and drag coefficients of viscoelastic drops (Boger drops) with different elasticity falling into the air and oil are investigated experimentally. The main object of the present study is an evaluation… read more here.
Keywords: boger drops; number; drag coefficient; drops falling ... See more keywords
Observation and numerical experiments for drag coefficient under typhoon wind forcing
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Ocean University of China"
DOI: 10.1007/s11802-017-3091-4
Abstract: This paper presents a study on drag coefficients under typhoon wind forcing based on observations and numerical experiments. The friction velocity and wind speed are measured at a marine observation platform in the South China… read more here.
Keywords: typhoon wind; wind forcing; numerical experiments; drag coefficient ... See more keywords
Simulation on hydrodynamics of non-spherical particulate system using a drag coefficient correlation based on artificial neural network
Sign Up to like & getrecommendations! Published in 2019 at "Petroleum Science"
DOI: 10.1007/s12182-019-00411-2
Abstract: Fluidization of non-spherical particles is very common in petroleum engineering. Understanding the complex phenomenon of non-spherical particle flow is of great significance. In this paper, coupled with two-fluid model, the drag coefficient correlation based on… read more here.
Keywords: artificial neural; hydrodynamics; drag coefficient; non spherical ... See more keywords
Optimal design of a coil gun projectile by analyzing the drag coefficient and electromagnetic force on the projectile
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Mechanical Science and Technology"
DOI: 10.1007/s12206-020-0622-5
Abstract: The shape of a projectile greatly affects its velocity when fired from a coil gun. A magnetic field is generated when the capacitor is discharged and current flows through a solenoid coil, and the magnitude… read more here.
Keywords: projectile; shape; coil gun; drag coefficient ... See more keywords
The drag coefficient and settling velocity of natural sediment particles
Sign Up to like & getrecommendations! Published in 2019 at "Computational Particle Mechanics"
DOI: 10.1007/s40571-019-00223-6
Abstract: This article reports a study in which drag coefficient is defined more comprehensively. The coefficient is defined as a function of particle nominal diameter, gravitational acceleration, the ambient fluid kinematic viscosity, and the particle shape.… read more here.
Keywords: drag coefficient; settling velocity; particle shape;
Influence of the Drag Coefficient on Communication Towers
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Civil Engineering"
DOI: 10.1007/s40999-017-0157-z
Abstract: This paper discusses some of the recent wind loading procedures for the design of lattice towers. In particular, the paper focuses the attention on the drag coefficient of communication towers with square and triangular cross-section… read more here.
Keywords: methodology; paper; communication towers; drag coefficient ... See more keywords
Drag coefficient and averaged Nusselt number of a scalene prolate ellipsoid
Sign Up to like & getrecommendations! Published in 2018 at "Applied Mathematical Modelling"
DOI: 10.1016/j.apm.2018.07.055
Abstract: Abstract A cold fluid flowing past a hot stationary scalene prolate ellipsoid is numerically studied via a three-dimensional immersed boundary-lattice Boltzmann model (IB-LBM). First, axisymmetric ellipsoids are considered for verification purposes, and good agreement is… read more here.
Keywords: coefficient averaged; prolate ellipsoid; number; drag coefficient ... See more keywords
Boundary effects on the drag coefficient and average Nusselt number of a sphere in SCW: A comparative study
Sign Up to like & getrecommendations! Published in 2019 at "Engineering Analysis with Boundary Elements"
DOI: 10.1016/j.enganabound.2019.02.001
Abstract: Abstract A comparative study on cold supercritical water (SCW) passing over a hot sphere is carried out using the particle-resolved direct numerical simulation (PR-DNS) to examine the wall effects. Different working conditions are considered to… read more here.
Keywords: comparative study; drag coefficient; average nusselt; nusselt number ... See more keywords
Numerical study on the trajectory of dropped cylindrical objects
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DOI: 10.1016/j.oceaneng.2016.11.060
Abstract: Abstract Dropped objects are among the top ten causes of fatalities and serious injuries in the oil and gas industry (DORIS, 2016) . Objects may be dropped during lifting or any other offshore operation. Concerns… read more here.
Keywords: rolling frequency; numerical study; drag coefficient; dropped cylindrical ... See more keywords
Predicting fiber drag coefficient and settling velocity of sphere in fiber containing Newtonian fluids
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2017.09.046
Abstract: Abstract In petroleum industry, fiber containing fluids are widely used as drilling fluids or fracturing fluids to improve the efficiency of cuttings transport during drilling or proppant transport during fracturing. Accurate prediction of fiber drag… read more here.
Keywords: settling velocity; fiber drag; fiber containing; fiber ... See more keywords