Film thickness measurement techniques applied to micro-scale two-phase flow systems

CB Tibiriçá, FJ do Nascimento, G Ribatski - Experimental Thermal and Fluid …, 2010 - Elsevier
Recently semi-empirical models to estimate flow boiling heat transfer coefficient, saturated
CHF and pressure drop in micro-scale channels have been proposed. Most of the models …

A short review on optical interferometry techniques for characterization of a thin liquid film on a solid surface

S Chatterjee, R Bhardwaj - Sādhanā, 2023 - Springer
Thin films of liquids formed on solid surfaces are of both fundamental and industrial
importance. Therefore, the detection and analysis of thin-film profiles have been at the …

A method for direct thickness measurement of wavy liquid film in gas-liquid two-phase annular flow using conductance probes

C Wang, N Zhao, C Chen, H Sun - Flow Measurement and Instrumentation, 2018 - Elsevier
Gas-liquid two-phase annular flow widely exists in industrial fields such as chemical
engineering, petroleum, nuclear reactors and so on. The liquid film plays major influences …

Spatial and temporal characteristic information parameter measurement of interfacial wave using ultrasonic phased array method

H Jia, J Wen, X Xu, M Liu, L Fang, N Zhao - Energy, 2024 - Elsevier
Gas-liquid two-phase flow exists in nuclear reactor evaporation, vehicle cooling, chemical
production falling film evaporation and other processes, and the dynamic measurement of …

Measurement of liquid film thickness in vertical multiphase slug and churn flows using distributed ultrasonic method

W Ren, N Jin, L Zhai, Y Ren - IEEE Sensors Journal, 2019 - ieeexplore.ieee.org
A distributed ultrasonic method for measuring the liquid film thickness of vertical multiphase
slug flow and churn flow widely existed in industrial production is proposed in this paper …

Thin film flow on a vertically rotating disc of finite thickness partially immersed in a highly viscous liquid

MS Miah, S Al-Assaf, X Yang, A McMillan - Chemical Engineering Science, 2016 - Elsevier
The entrainment and flow of a thin film of liquid on a vertically rotating disc partially
immersed in a liquid bath has been investigated experimentally and modelled numerically …

Accurate thin-film measurement method based on a distribution of laser intensity emitted from optical fiber: Proposal of step light emitted model for ray-tracing …

K YAMAGUCHI, T SANADA… - Mechanical Engineering …, 2020 - jstage.jst.go.jp
The accurate measurement of thin liquid films in various environments is essential for
several industrial applications. In this regard, measurement procedures involving the use of …

Simultaneous measurement of film thickness and wave velocity in liquid-film flow with an optical fiber probe, micro-fabricated by a femtosecond pulse laser

H Furuichi, Y Mizushima - Chemical Engineering Science, 2021 - Elsevier
Measuring the wavy motion of the liquid-film interface is necessary for controlling the
transportation efficiency of heat and mass transfer. Such a locally and temporally minor …

Direct detection method for cusp thickness in wavy thin-film flow using an optical waveguide film

K Nakano, H Furuichi, Y Mizushima - Experiments in Fluids, 2025 - Springer
The wave crest (cusp) of the disturbance wave in thin liquid film flow is an important factor
contributing to heat/mass transfer, eg, fuel rods in boiling water reactors, stator/rotor blades …

Accuracy and error analysis of optical liquid film thickness measurement with total internal reflection method (TIRM)

M Grasso, V Petrov, A Manera - Experiments in Fluids, 2024 - Springer
The characterization of thin liquid films is relevant to many engineering applications, ranging
from oil and chemical industry to refrigeration systems, to cooling of light water nuclear …