Thermal performance enhancement and optimization of two-phase closed thermosyphon with graphene-nanoplatelets coatings

VO Ng, H Yu, HA Wu, YM Hung - Energy Conversion and Management, 2021 - Elsevier
The enhancement of phase-change heat transfer in the two-phase closed thermosyphon
(TPCT) coated with graphene-nanoplatelets (GNPs) of different wettability is investigated …

A new DNS formalism dedicated to turbulent two-phase flows with phase change

LG Martinez, B Duret, J Reveillon… - International Journal of …, 2021 - Elsevier
Phase change in multiphase flows occurs in many natural and industrial applications, eg,
rain formation, internal combustion engines, heat exchangers, multiphase reactors, etc. In …

Direct numerical simulations of droplet condensation

A Orazzo, S Tanguy - International Journal of Heat and Mass Transfer, 2019 - Elsevier
We present in this work well-resolved and accurate Direct Numerical Simulations (DNS) of
droplet condensation. Despite the great scientific and industrial interest, to this day, there is …

A mass-preserving interface-correction level set/ghost fluid method for modeling of three-dimensional boiling flows

BM Ningegowda, Z Ge, G Lupo, L Brandt… - International Journal of …, 2020 - Elsevier
We present an efficient method for the direct numerical simulation of three-dimensional (3D)
boiling flows. The liquid-vapor interface dynamics is captured using an interface-correction …

Heat flux and forces acting on a vaporising droplet in a superheated vapor flow

R Alis, S Tanguy, K Kentheswaran, O Rouzaud… - International Journal of …, 2023 - Elsevier
In this paper, we present Direct Numerical Simulations of the interaction between a
vaporising spherical droplet and a high-temperature vapour flow. The numerical simulations …

Interaction between the turbulent boundary layer flow of superheated vapor and the velocity field induced by liquid vaporization

ER Popescu, JR Dawson, L Brandt, C Colin… - International Journal of …, 2022 - Elsevier
We consider the heat and mass transfer in the turbulent boundary layer flow over a
stationary but evaporating liquid surface via direct numerical simulations. We investigate the …

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K KENTHESWARAN - 2022 - theses.fr
Résumé Les performances des procédés industriels qui mettent en œuvre des écoulements
diphasiques, tels que les réacteurs catalytiques ou les colonnes à bulles utilisées par …

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MER POPESCU - core.ac.uk
Résumé Dans le réservoir d'un satellite, le carburant cryogénique peut se transformer en
vapeur à cause de la présence d'un gradient de température à la paroi, induit par le …

Numerical simulation of the interaction between an external flow, laminar or turbulent, and liquid/vapor phase change

ER Popescu - 2019 - theses.hal.science
In a launcher tank, the cryogenic fuel can suffer a liquid/vapor phase change due to a
thermal gradient induced by solar radiation or by engines residual thermal diffusion. The …