Direct Numerical Simulations of Three-Layer Viscosity-Stratified Flow
نویسندگان
چکیده
VOLUME 84, OCTOBER 2006 INTRODUCTION This work is motivated by a problem encountered in certain mixing processes that employ a centre line injector upstream of a static mixer. Static or motionless mixers have been adopted for a large number of blending and dispersion operations because they offer attractive features such as closed-loop operation, and no moving parts, in contrast to continuously-stirred tank reactors. The two liquids to be mixed (for example, a polymer melt and an additive) are forced under high pressure through the mixer placed inside a tube, and the two liquids are cut and folded repeatedly as they negotiate the bends and openings within the mixer (see Ventresca et al. (2002) Direct Numerical Simulations of Three-Layer Viscosity-Stratified Flow
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