Dimensional and Mechanical Similarity Analysis of the Flow in Rotating Liquid Film Reactor

Li, Xue; Xu, Lanxi; Zhang, Jingjing; Lan, Wanli

doi:10.4236/ojfd.2013.32004

Cited by 2 publications

(1 citation statement)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several studies available in the literature have been focused on this type of flow treating the influences of free surface, gap width, cone angle, cone height, and rate of acceleration on the flow patterns [19][20][21][22][23][24][25][26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Flow Patterns in a Combined Taylor–couette Geometry

Lalaoua¹,

Chaieb²

2016

Topical Problems of Fluid Mechanics 2016

View full text Add to dashboard Cite

The Taylor Couette problem, which is the fluid motion in an annulus between two concentric rotating bodies, is a convenient flow system to study the laminar-turbulent transition and has a fundamental interest in the wavenumber selection processes. This paper presents a numerical study of conical Taylor-Couette flows when the inner cylinder is a regular straight cylinder, but the outer cylinder has a tilted, conical shape. The apex angle between the inner cylinder and the outer cone is varied between 0 and 12 degrees. The parameter that determines the flow regimes is the Taylor number based on the angular velocity of the inner cylinder. The calculations are carried out using a three-dimensional CFD of incompressible viscous flow. Computations for the onset of Taylor vortices in the classical configuration with straight cylinders show good agreement with experimental data. For the case of a conical outer cylinder, calculations show a decrease in the critical Taylor number for the onset of the first instability along with the number of rolls with the apex angle. The main result of this geometrical modification is that the gap width varies in height, and the Taylor vortices then vary in size, being large where the gap is wide, and small where the gap is narrow. Pressure distribution is also computed.

show abstract

Section: Introductionmentioning

confidence: 99%

Flow Patterns in a Combined Taylor–couette Geometry

Lalaoua¹,

Chaieb²

2016

Topical Problems of Fluid Mechanics 2016

View full text Add to dashboard Cite

show abstract

Numerical and Experimental Investigation on Flow Capacity and Erosion Wear of Blooey Line in Gas Drilling

Zhang

Lian

Abdelal

et al. 2017

Journal of Energy Resources Technology

View full text Add to dashboard Cite

Blooey line is a discharge pipe, used to conduct gas to keep drilling rock dust and cuttings away from the drilling rig, reducing the fire hazard and transporting the cuttings to a suitable distance from the well. In this paper, the blooey line's flow capacity and erosion mechanism have been investigated by numerical and experimental method. The model of blooey line, which is commonly used in Sichuan district, China, is established by using a computational fluid dynamics (CFD) method. And, the distribution of pressure field and velocity field in the blooey line are investigated by the CFD model. And, the effect of gas flow rate on impact force and erosion is also discussed. Compared with the simulation results, an experimental apparatus of the blooey line has been conducted under the mechanical similarity principle. The impact force and pressure on the elbows are measured under different gas flow rates. The numerical simulation and experimental method proposed in this paper can provide a reference for layout optimization and flow capacity calculation of blooey line in gas drilling.

show abstract

Dimensional and Mechanical Similarity Analysis of the Flow in Rotating Liquid Film Reactor

Cited by 2 publications

References 10 publications

Flow Patterns in a Combined Taylor–couette Geometry

Flow Patterns in a Combined Taylor–couette Geometry

Numerical and Experimental Investigation on Flow Capacity and Erosion Wear of Blooey Line in Gas Drilling

Contact Info

Product

Resources

About