Comparison of results from DNS of bubbly flows with a two-fluid model for two-dimensional laminar flows

2005 ◽  
Vol 31 (9) ◽  
pp. 1036-1048 ◽  
Author(s):  
Souvik Biswas ◽  
Asghar Esmaeeli ◽  
Gretar Tryggvason
Keyword(s):  
Fluid Model ◽  
Laminar Flows ◽  
Bubbly Flows ◽  
Two Dimensional ◽  
Comparison Of Results ◽  
Two Fluid Model ◽  
Two Fluid

Two-dimensional two-fluid model for air-oil wavy flow in horizontal tube

2019 ◽  
Vol 33 (6) ◽  
pp. 2693-2709 ◽  
Author(s):  
Hong-Cheol Shin ◽  
Hyeon-Seok Seo ◽  
Sung-Min Kim
Keyword(s):  
Fluid Model ◽  
Horizontal Tube ◽  
Two Dimensional ◽  
Two Fluid Model ◽  
Two Fluid

A NUMERICAL STUDY OF TWO-PHASE FLOW USING A TWO-DIMENSIONAL TWO-FLUID MODEL

2004 ◽  
Vol 45 (10) ◽  
pp. 1049-1066 ◽  
Author(s):  
Moon-Sun Chung ◽  
Seung-Kyung Pak ◽  
Keun-Shik Chang
Keyword(s):  
Two Phase Flow ◽  
Numerical Study ◽  
Fluid Model ◽  
Phase Flow ◽  
Two Dimensional ◽  
Two Phase ◽  
Two Fluid Model ◽  
Two Fluid

scholarly journals On the hyperbolicity of the two-fluid model for gas–liquid bubbly flows

2018 ◽  
Vol 57 ◽  
pp. 432-447 ◽  
Author(s):  
N. Panicker ◽  
A. Passalacqua ◽  
R.O. Fox
Keyword(s):  
Fluid Model ◽  
Bubbly Flows ◽  
Two Fluid Model ◽  
Two Fluid

ELECTRON PARALLEL COMPRESSIBILITY IN THE NONLINEAR DEVELOPMENT OF TWO-DIMENSIONAL COLLISIONLESS MAGNETOHYDRODYNAMIC RECONNECTION

2006 ◽  
Vol 20 (16) ◽  
pp. 931-961 ◽  
Author(s):  
DANIELE DEL SARTO ◽  
F. CALIFANO ◽  
F. PEGORARO
Keyword(s):  
Magnetic Reconnection ◽  
Fluid Model ◽  
Density Fluctuations ◽  
Larmor Radius ◽  
Small Scale ◽  
Two Dimensional ◽  
Guide Field ◽  
Fluid Instabilities ◽  
Two Fluid Model ◽  
Two Fluid

Some topological aspects of the magnetic reconnection phenomenon are summarized and recent numerical results, derived within a two-fluid model, of two-dimensional collisionless magnetic reconnection in presence of a strong guide field are reported. Both the Alfvèn and the whistler frequency range are investigated by including electron parallel compressibility effects that are related respectively to thermal effects and to density fluctuations. The Hamiltonian character of the system is emphasized as it drives the small scale dynamics through the presence of topological invariants. These determine the formation and the shape of small scale current and vorticity layers inside the magnetic island. Secondary fluid instabilities, mainly of the Kelvin–Helmholtz type, can destabilize these layers when a hydrodynamic type regime is achieved. The inclusion of parallel electron compressibility has stabilizing effects. In view of the limitations of the two-fluid modelling, possible developments are briefly discussed such as the inclusion of Larmor-radius corrections, in lieu of a fully kinetic approach.

A Two-Fluid Model of Mixing in a Two-Dimensional Enclosure

1998 ◽  
Vol 120 (1) ◽  
pp. 115-126 ◽  
Author(s):  
O. J. Ilegbusi ◽  
M. D. Mat
Keyword(s):  
Potential Energy ◽  
Buoyancy Force ◽  
Volume Fraction ◽  
Fluid Model ◽  
Two Dimensional ◽  
Material Interface ◽  
Thermal Buoyancy ◽  
Two Fluid Model ◽  
Nonisothermal Conditions ◽  
Two Fluid

Mixing of fluids in a cavity under isothermal and nonisothermal conditions is studied with a two-fluid model. This model involves the solution of separate transport equations for zone-averaged variables of each fluid with allowance for interface transport of momentum and energy. The effects of thermal and potential energy driven convection as well as Prandtl number are investigated. The material interface is represented by the contour of the volume fraction separating the fluids. The effect of the buoyancy force due to the initial potential energy of the fluids is found to predominate over thermal buoyancy for comparable Grashof numbers.

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