Two-phase flow regimes in microchannels

EV Rebrov - Theoretical foundations of chemical engineering, 2010 - Springer
Capillary hydrodynamics has three considerable distinctions from macrosystems: first, there
is an increase in the ratio of the surface area of the phases to the volume that they occupy; …

Experimental techniques for bubble dynamics analysis in microchannels: a review

M Mohammadi, KV Sharp - Journal of fluids …, 2013 - asmedigitalcollection.asme.org
Experimental studies employing advanced measurement techniques have played an
important role in the advancement of two-phase microfluidic systems. In particular, flow …

Significant Nusselt number increase in microchannels with a segmented flow of two immiscible liquids: An experimental study

A Asthana, I Zinovik, C Weinmueller… - International Journal of …, 2011 - Elsevier
Increasingly smaller electronics requires improvement in performance of cooling systems to
keep it operating reliably. We present herein a novel experimental study of convective heat …

Can segmented flow enhance heat transfer in microchannel heat sinks?

AR Betz, D Attinger - International Journal of Heat and Mass Transfer, 2010 - Elsevier
Liquid cooling is an efficient way to remove heat fluxes with magnitudes up to 10,000
W/cm2. One limitation of current single-phase microchannel heat sinks is the relatively low …

Analysis of phase interaction and gas holdup in a multistage multiphase rotodynamic pump based on a modified Euler two-fluid model

W Zhang, X Xie, B Zhu, Z Ma - Renewable Energy, 2021 - Elsevier
Due to the effect of unit stages, the gas-liquid flow and the interphase forces in the
multistage multiphase pump are more disordered, which will affect the energy conversion …

Gas–liquid flow in circular microchannel. Part I: Influence of liquid physical properties and channel diameter on flow patterns

T Zhang, B Cao, Y Fan, Y Gonthier, L Luo… - Chemical engineering …, 2011 - Elsevier
This paper presents an experimental investigation on influence of liquid physical properties
and channel diameter on gas–liquid flow patterns in horizontal circular microchannels with …

Characterisation of gas-liquid two-phase flow in minichannels with co-flowing fluid injection inside the channel, part I: unified mapping of flow regimes

S Haase - International Journal of Multiphase Flow, 2016 - Elsevier
Present research highlights the potential of apparatuses with integrated minichannel
packings to intensify gas-liquid-solid contacting. Especially an operation of these devices …

Gas–liquid two-phase flow splitting at microchannel junctions with different branch angles

J Chen, S Wang, H Ke, S Cai, Y Zhao - Chemical Engineering Science, 2013 - Elsevier
In the present work, the phase split occurring at microchannel junctions with the square
cross-section of 0.5× 0.5 mm 2 was investigated experimentally under adiabatic condition …

Hydrodynamics of gas/shear-thinning liquid two-phase flow in a co-flow mini-channel: Flow pattern and bubble length

WY Fan, SC Li, LX Li, X Zhang, MQ Du, XH Yin - Physics of Fluids, 2020 - pubs.aip.org
The flow patterns and bubble characteristics formed during gas–liquid flows in a circular co-
flow mini-channel with carboxymethyl cellulose (CMC) aqueous solutions are investigated …

A flexible direct methanol micro-fuel cell based on a metalized, photosensitive polymer film

C Weinmueller, G Tautschnig, N Hotz… - Journal of Power …, 2010 - Elsevier
This paper presents and investigates a concept for a flexible direct methanol micro-fuel cell
(FDMMFC) based on the microstructuring of a Cr/Au metalized, thin polymer film of …