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A number of flooding correlations have been proposed in the past. These correlations often succeed in predicting the researcher’s own data but fail to correlate data of other investigations, limiting the use of the correlations. The validity of the correlation method proposed in part I is...
Laser Doppler anemometry was used to measure axial and radial velocity components in a liquid flow field in the presence of dispersed beads. Index of refraction matching between the fluid ( para -cymene) and large, spherical beads, made of polymethyl methacrylate, was essential to extract the...
An experimental investigation into adiabatic gas–liquid counterflow in inclined and vertical rectangular ducts with a square-edged gas inlet is conducted. Water, methanol, propanol, air, argon, helium and hydrogen are used as working fluids. The duct height and width are varied from 50 to 150...
To elucidate details of the fascinating nonlinear phenomena of waves on a film, spatial temporal knowledge of the interfacial waves is essential. This paper presents a new method for measuring waves on a film flowing down the inner wall of a vertical tube, using a laser focus displacement meter....
A theoretical model is developed for red blood cell motion in a diverging microvessel bifurcation, where the downstream branches are equal in size but receive different flows. The model is used to study migration of red cells across streamlines of the underlying flow, due to particle shape and...
Particle tracking velocimetry was successfully used to study the three-dimensional solids movement of large dispersed beads in a vertical column. For the large beads, overlap was a major limitation, especially at high bead concentrations. Thus, an additional image enhancement algorithm for...
A perturbation theory for the steady flow of immiscible liquids is developed when the dispersed phase is much more viscous than the continuous phase, as is the case in emulsions of highly viscous bitumen in water and in water lubricated pipelines of heavy crude. The perturbation is nonsingular,...
A Lagrange-multiplier-based fictitious-domain method (DLM) for the direct numerical simulation of rigid particulate flows in a Newtonian fluid was presented previously. An important feature of this finite element based method is that the flow in the particle domain is constrained to be a rigid...
Pressure gradient and holdup data are presented for air–water and air–oil flows in a horizontal, 0.079 m diameter pipe. Addition of a very small liquid flow was found to result in a considerable increase in the pressure gradient compared with single phase gas flow. The pressure gradient and...
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