With the objective of estimating the thermal resistance of a two-phase closed thermosyphon
(TPCT), the work presented is a state of the art of condensation and falling film …

Two-phase annular flow in vertical pipes is one of the most common and important flow
regimes in fluid mechanics, particularly in the field of building drainage systems where …

The main goal of the book is generalization of the existing knowledges of the wavy flow of
falling thin liquid films and transfer processes in wave regimes. The methods of local …

The performance of ring-shaped and plate electrodes for measuring the conductance of gas-
liquid mixtures in pipes is studied experimentally and the results are compared with the …

A simultaneous measurement technique based on planar laser-induced fluorescence
imaging (PLIF) and particle image/tracking velocimetry (PIV/PTV) is described for the …

Downwards co-current gas–liquid annular flows were studied experimentally and
characterized. An advanced optical laser-based measurement technique, namely Planar …

Experiments were performed to investigate the flow and surface structure in laminar wavy
films over a Reynolds number range from Ref= ρūδf/η= 27–200. Measurements of the …

An experimental investigation of a liquid film falling around a horizontal tube was performed
using a displacement micrometer to determine the distribution characteristics of the film …

This paper is devoted to the simultaneous application of two spatiotemporally resolved
optical techniques capable of liquid film thickness measurements, namely Planar Laser …

A nonintrusive, automated, optical film thickness measurement technique has been
developed to be used with a wide range of fluids and flow configurations. In this method …