A Flexible Coupled Level Set and Volume of Fluid (flexCLV) method to simulate microscale two-phase flow in non-uniform and unstructured meshes

2017 ◽  
Vol 91 ◽  
pp. 276-295 ◽  
Author(s):  
Andrea Ferrari ◽  
Mirco Magnini ◽  
John R. Thome
Keyword(s):  
Level Set ◽  
Two Phase Flow ◽  
Volume Of Fluid ◽  
Unstructured Meshes ◽  
Phase Flow ◽  
Two Phase

scholarly journals Evaluation of two-phase flow solvers using Level Set and Volume of Fluid methods

2017 ◽  
Vol 345 ◽  
pp. 665-686 ◽  
Author(s):  
C. Bilger ◽  
M. Aboukhedr ◽  
K. Vogiatzaki ◽  
R.S. Cant
Keyword(s):  
Level Set ◽  
Two Phase Flow ◽  
Volume Of Fluid ◽  
Phase Flow ◽  
Two Phase

Coupled level-set and volume-of-fluid method for two-phase flow calculations

2017 ◽  
Vol 71 (2) ◽  
pp. 173-185 ◽  
Author(s):  
Yeng-Yung Tsui ◽  
Cheng-Yen Liu ◽  
Shi-Wen Lin
Keyword(s):  
Level Set ◽  
Two Phase Flow ◽  
Volume Of Fluid ◽  
Phase Flow ◽  
Volume Of Fluid Method ◽  
Two Phase

A three-dimensional volume of fluid & level set (VOSET) method for incompressible two-phase flow

2015 ◽  
Vol 118 ◽  
pp. 293-304 ◽  
Author(s):  
Kong Ling ◽  
Zhao-Hui Li ◽  
Dong-Liang Sun ◽  
Ya-Ling He ◽  
Wen-Quan Tao
Keyword(s):  
Level Set ◽  
Two Phase Flow ◽  
Three Dimensional ◽  
Volume Of Fluid ◽  
Phase Flow ◽  
Fluid Level ◽  
Two Phase

Two-phase flow stability analysis using a level set approach

2017 ◽  
Author(s):  
Mamta Raju Jotkar ◽  
Daniel Rodriguez ◽  
Bruno Marins Soares
Keyword(s):  
Stability Analysis ◽  
Level Set ◽  
Two Phase Flow ◽  
Flow Stability ◽  
Phase Flow ◽  
Two Phase ◽  
Level Set Approach

Finite element implementation of an improved conservative level set method for two-phase flow

2014 ◽  
Vol 100 ◽  
pp. 138-154 ◽  
Author(s):  
Lanhao Zhao ◽  
Jia Mao ◽  
Xin Bai ◽  
Xiaoqing Liu ◽  
Tongchun Li ◽  
...  
Keyword(s):  
Finite Element ◽  
Level Set Method ◽  
Level Set ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Finite Element Implementation ◽  
Conservative Level Set

A Validated Two-Phase Flow Large Eddy Simulation Methodology

2013 ◽  
Author(s):  
Feng Xiao ◽  
Mehriar Dianat ◽  
James J. McGuirk
Keyword(s):  
Boundary Conditions ◽  
Level Set ◽  
Two Phase Flow ◽  
Local Level ◽  
Density Ratio ◽  
Cross Flow ◽  
Liquid Jet ◽  
Phase Flow ◽  
Two Phase ◽  
Primary Breakup

A robust two-phase flow LES methodology is described, validated and applied to simulate primary breakup of a liquid jet injected into an airstream in either co-flow or cross-flow configuration. A Coupled Level Set and Volume of Fluid method is implemented for accurate capture of interface dynamics. Based on the local Level Set value, fluid density and viscosity fields are treated discontinuously across the interface. In order to cope with high density ratio, an extrapolated liquid velocity field is created and used for discretisation in the vicinity of the interface. Simulations of liquid jets discharged into higher speed airstreams with non-turbulent boundary conditions reveals the presence of regular surface waves. In practical configurations, both air and liquid flows are, however, likely to be turbulent. To account for inflowing turbulent eddies on the liquid jet interface primary breakup requires a methodology for creating physically correlated unsteady LES boundary conditions, which match experimental data as far as possible. The Rescaling/Recycling Method is implemented here to generate realistic turbulent inflows. It is found that liquid rather than gaseous eddies determine the initial interface shape, and the downstream turbulent liquid jet disintegrates much more chaotically than the non-turbulent one. When appropriate turbulent inflows are specified, the liquid jet behaviour in both co-flow and cross-flow configurations is correctly predicted by the current LES methodology, demonstrating its robustness and accuracy in dealing with high liquid/gas density ratio two-phase systems.

scholarly journals Modeling of Two-Phase Flow in Rough-Walled Fracture Using Level Set Method

Geofluids ◽  
2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Yunfeng Dai ◽  
Zhifang Zhou ◽  
Jin Lin ◽  
Jiangbo Han
Keyword(s):  
Crude Oil ◽  
Level Set Method ◽  
Level Set ◽  
Two Phase Flow ◽  
Volume Fraction ◽  
Contact Angles ◽  
Immiscible Fluids ◽  
Water Volume ◽  
Phase Flow ◽  
Two Phase

To describe accurately the flow characteristic of fracture scale displacements of immiscible fluids, an incompressible two-phase (crude oil and water) flow model incorporating interfacial forces and nonzero contact angles is developed. The roughness of the two-dimensional synthetic rough-walled fractures is controlled with different fractal dimension parameters. Described by the Navier–Stokes equations, the moving interface between crude oil and water is tracked using level set method. The method accounts for differences in densities and viscosities of crude oil and water and includes the effect of interfacial force. The wettability of the rough fracture wall is taken into account by defining the contact angle and slip length. The curve of the invasion pressure-water volume fraction is generated by modeling two-phase flow during a sudden drainage. The volume fraction of water restricted in the rough-walled fracture is calculated by integrating the water volume and dividing by the total cavity volume of the fracture while the two-phase flow is quasistatic. The effect of invasion pressure of crude oil, roughness of fracture wall, and wettability of the wall on two-phase flow in rough-walled fracture is evaluated.

Sign in / Sign up

Export Citation Format

Share Document