TL;DR: In this article, a 549mm diameter horizontal pipe on two sizes of glass beads of which mean diameter and geometric standard deviation are 440μm and 12 and 125μm & 115, respectively, and a mixture of the two sizes in equal fraction by mass Flow velocity was up to 5m/s and overall concentration up to 50% by volume for each velocity Pressure drop and concentration profiles were measured.

TL;DR: Chanson et al. as mentioned in this paper described measurements of void fractions, bubble frequencies and bubble sizes in hydraulic jumps with Froude numbers 2.0, 2.4, 3.7 and 4.8.

TL;DR: In this article, the Stokes number is defined as the major parameter determining the degree of preferential concentration, defined in Eq. (1.1) for the case of carrier fluid turbulence.

TL;DR: In this paper, the magnetic field strength was varied up to 0.3 T corresponding to a magnetic interaction parameter N (which measures the ratio of electromagnetic forces to inertial forces) slightly greater than 1.

TL;DR: In this article, the authors proposed a new droplet collision model considering the collision-induced breakup process with the formation of satellite droplets, and the new model consists of several equations to investigate the post-collision characteristics of colliding droplets and satellites.

TL;DR: In this paper, the influence of initial bubble conditions on bubble rise motion was examined by using a coupled level set/volume of fluid (CLSVOF) method, and it was shown that high Eo and high M conditions did not affect the final state of bubble rise.

TL;DR: In this article, the authors derived the interfacial measurement theorem relating the local instantaneous interfacial velocity to local measurable velocities of the multi-sensor probe in the improvement and proposed an interface-pairing signal processing scheme to identify the same interfaces from the sequential signals detected by different sensors.

TL;DR: In this paper, the effect of fiber concentration and Reynolds number on the shape of the velocity profile of fiber suspension flow in a rectangular channel is measured by pulsed ultrasonic Doppler velocimetry (PUDV).

TL;DR: In this article, the two-phase flow patterns and pressure drop of ethanol and CO2 in a converging or diverging rectangular microchannel were investigated using a high speed video camera.

TL;DR: In this article, a study of phase split at a horizontal T-junction with main and side branches of 0.005m diameters was performed and the experiments were confined to the stratified flow pattern and the effects of phase velocities and pressure on the split were examined.

TL;DR: In this paper, the authors modeled the rise velocity of long gas bubbles (Taylor bubbles) in round tubes by an ovary ellipsoidal cap bubble rising in an irrotational flow of a viscous liquid.

TL;DR: In this paper, the authors improved the current phenomenological understanding of slug flow characteristics over an entire hilly-terrain section, and in particular, the slug initiation mechanism at the lower dip.

TL;DR: In this article, the effects of surfactant solution flows through a micro-channel heat sink were investigated, and the experimental setup included a high-speed IR radiometer and a CCD camera that were used to characterize the test module.

TL;DR: In this article, the immiscible displacement growth pattern in a porous medium may be governed by the shear-thinning rheology of the injected or displaced fluid, and the porous sample length as compared to the thickness of the frontal region.

TL;DR: In this paper, hydrodynamic models are presented for these two extreme cases and the velocities of the secondary droplets produced by the crown splash in a sparse spray are described theoretically.

TL;DR: In this article, a theoretical model of a two-phase air/dispersed water spray flow in an icing wind tunnel is presented, where mutual interactions taking place within the dispersed phase known as binary droplet collisions, as well as gravitational sedimentation are considered.

TL;DR: In this article, the theoretical foundations for the averaged spray equations are examined; then the volume-averaging process for LES and the volume averaging process for two-phase flows are unified for the analysis of turbulent, twophase flows.

TL;DR: This study shows that the LS method was shown to lead to loss (or gain) of mass when fluid filaments become comparable to grid size, while the VT methods were found prone to producing ‘‘blobby’’ structures, while particle-based, front-tracking methods were shown to perform better in conserving filamentary structures.

TL;DR: In this article, the effect of different parameters on CHF in the tight rod bundle is similar to that in tube geometries, and the present test results agree also quantitatively well with the CHF data obtained in tubes of comparable hydraulic diameters.

TL;DR: In this paper, the authors performed a full numerical simulation of nucleate boiling in a fully three-dimensional geometry using the Level Contour Reconstruction Method (Shin and Juric, 2002).

TL;DR: In this article, the effect of applied voltage and flow conditions on the bubbles generated was tested on single electrode pairs and the results showed that higher applied voltages coincided with smaller average bubble size, a narrower distribution of bubble sizes, higher bubble fluxes, and a higher current efficiency.

TL;DR: In this paper, the influence of the liquid flow field on interfacial structure is studied through local axial velocity measurements in the liquid phase in conjunction with other liquid layer characterization experiments.

TL;DR: The flow pattern maps available in literature were first developed for the petrochemical industry (Baker, 1954) for flow of oil and gas in large diameter pipes as mentioned in this paper, and they have been developed for specific conditions such as small diameter tubes, evaporation or condensation, and compact heat exchanger geometry.

TL;DR: In this article, the interaction between a bubble, which is rising in a descending water flow, and a hot-film anemometer was experimentally investigated using stereoscopic high-speed imaging.

TL;DR: In this article, an experimental study was performed to investigate the pool boiling critical heat flux (CHF) in one-dimensional inclined rectangular channels by changing the orientation of a copper test heater assembly.

TL;DR: In this paper, gas entrainment by a liquid film falling around a stationary Taylor bubble in a 0.1m diameter vertical tube is studied experimentally with the purpose of validating a model formulated in an earlier phase of the research.

TL;DR: In this paper, direct numerical simulations of laminar bubbly flow in a vertical channel are compared with predictions of a two-fluid model for steady-state flow, and the results suggest a need to understand the lift and wall repulsion force on bubbles better, particularly in dense flows.