A Numerical Study of Rayleigh-Taylor Instability in Magnetic Fluids

1995 ◽  
Vol 453 ◽  
pp. 332 ◽  
Author(s):  
Byung-Il Jun ◽  
Michael L. Norman ◽  
James M. Stone
Keyword(s):  
Numerical Study ◽  
Magnetic Fluids ◽  
Taylor Instability ◽  
Rayleigh Taylor Instability

A numerical study of bubble interactions in Rayleigh–Taylor instability for compressible fluids

1990 ◽  
Vol 2 (11) ◽  
pp. 2046-2054 ◽  
Author(s):  
J. Glimm ◽  
X. L. Li ◽  
R. Menikoff ◽  
D. H. Sharp ◽  
Q. Zhang
Keyword(s):  
Numerical Study ◽  
Taylor Instability ◽  
Compressible Fluids ◽  
Bubble Interactions ◽  
Rayleigh Taylor Instability

Density Ratio and Entrainment Effects on Asymptotic Rayleigh–Taylor Instability

2017 ◽  
Vol 140 (5) ◽  
Author(s):  
Assaf Shimony ◽  
Guy Malamud ◽  
Dov Shvarts
Keyword(s):  
Numerical Study ◽  
Density Ratio ◽  
Three Dimensional ◽  
Growth Parameter ◽  
Taylor Instability ◽  
Mixing Zone ◽  
Mixing Process ◽  
Mixing Parameters ◽  
Rayleigh Taylor Instability ◽  
Self Similar

A comprehensive numerical study was performed in order to examine the effect of density ratio on the mixing process inside the mixing zone formed by Rayleigh–Taylor instability (RTI). This effect exhibits itself in the mixing parameters and increase of the density of the bubbles. The motivation of this work is to relate the density of the bubbles to the growth parameter for the self-similar evolution, α, we suggest an effective Atwood formulation, found to be approximately half of the original Atwood number. We also examine the sensitivity of the parameters above to the dimensionality (two-dimensional (2D)/three-dimensional (3D)) and to numerical miscibility.

Bubble Formation in Superposed Magnetic Fluids in the Presence of Heat and Mass Transfer

1995 ◽  
Vol 50 (9) ◽  
pp. 805-812 ◽  
Author(s):  
Gurpreet K. Gill ◽  
R.K. Chhabra ◽  
S.K. Trehan
Keyword(s):  
Mass Transfer ◽  
Nonlinear Analysis ◽  
Heat And Mass Transfer ◽  
Bubble Formation ◽  
Magnetic Fluids ◽  
Taylor Instability ◽  
Linear Case ◽  
Explosive Instability ◽  
Normal Field ◽  
Rayleigh Taylor Instability

Abstract In this paper we study the nonlinear Rayleigh-Taylor instability in the case of magnetic fluids in the presence of heat and mass transfer. We find that there is a normal field instability in the linear case. The behaviour of the bubbles in the nonlinear analysis is the same as if they were leaving the surface when the liquid is superheated. The criterion for "Explosive Instability" is also examined.

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