TY - JOUR
T1 - Modeling of turbulent, neutrally buoyant droplet suspensions in liquids
AU - Lewalle, Jacques
AU - Tavlarides, Lawrence L.
AU - Jairazbhoy, Vivek
PY - 1987/9
Y1 - 1987/9
N2 - The mixing of neutrally buoyant, immiscible droplets in suspension in a turbulent liquid is being studied. In a statistically homogeneous field, it is anticipated that the droplets will affect the turbulent eddies, and that the turbulence will cause the droplets to break-up and coalesce. A cascade model is constructed by extension of the Desnyansky and Novikov equation, accounting for the wavenumber dependence of the fluctuating energy, for the intermittency factor of the turbulence and for the droplet population. In the absence of breakage and coalescence, interactions between eddies and droplets are assumed to be of collision type, so that the exchange of energy and the modifications to the eddy and droplet populations can be described. The resulting equations are solved for a fixed droplet population, showing the effect of droplet size on the turbulent energy spectrum. Continuation of the work is discussed, including droplet breakage and coalescence, as well as the introduction of non-homoeeneous distributions.
AB - The mixing of neutrally buoyant, immiscible droplets in suspension in a turbulent liquid is being studied. In a statistically homogeneous field, it is anticipated that the droplets will affect the turbulent eddies, and that the turbulence will cause the droplets to break-up and coalesce. A cascade model is constructed by extension of the Desnyansky and Novikov equation, accounting for the wavenumber dependence of the fluctuating energy, for the intermittency factor of the turbulence and for the droplet population. In the absence of breakage and coalescence, interactions between eddies and droplets are assumed to be of collision type, so that the exchange of energy and the modifications to the eddy and droplet populations can be described. The resulting equations are solved for a fixed droplet population, showing the effect of droplet size on the turbulent energy spectrum. Continuation of the work is discussed, including droplet breakage and coalescence, as well as the introduction of non-homoeeneous distributions.
KW - Cascade
KW - Droplet
KW - Interactions
KW - Modeling
KW - Turbulence
KW - Two-phase
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U2 - 10.1080/00986448708911984
DO - 10.1080/00986448708911984
M3 - Article
AN - SCOPUS:0002319753
VL - 59
SP - 15
EP - 32
JO - Chemical Engineering Communications
JF - Chemical Engineering Communications
SN - 0098-6445
IS - 1-6
ER -