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Št. zadetkov: 7
ǂA ǂcoarse grid approach for single bubble boiling simulations with the volume of fluid method
Lubomir Bures, Mattia Bucci, Yohei Sato, Matteo Bucci
Izvirni znanstveni članek
Oznake: force balance;bubble departure;computational fluid dynamics;volume of fluid;sharpening contact;angle hysteresis;
Direct Numerical Simulation (DNS) of boiling flows requires a substantial number of grid points to precisely resolve the thermal boundary layer surrounding the phase interface. This resolution is vital for accurate calculation of the temperature gradient, which directly influences the mass transfer ...
Leto: 2024 Vir: Fakulteta za strojništvo (UL FS)
Multi-scale boiling heat transfer investigation on micro-thin aluminum heaters
Mattia Bucci, Matevž Zupančič, Iztok Golobič
Objavljeni znanstveni prispevek na konferenci
Oznake: mehurčkasto vrenje;dinamika mehurčkov;tankostenski grelci;pool boiling;bubble dynamics;thin metal heaters;
Nucleate boiling is a highly efficient heat transfer mode distinguished by the liquidvapor phase change, which occurs through the formation, growth, and detachment of vapor bubbles from a heated surface. Its crucial role in various industrial applications, such as nuclear power plant operation and e ...
Leto: 2024 Vir: Fakulteta za strojništvo (UL FS)
ǂThe ǂwall heat flux partitioning during the pool boiling of water on thin metallic foils
Matevž Zupančič, Peter Gregorčič, Mattia Bucci, Chi Wang, Gustavo Matana Aguiar, Matteo Bucci
Izvirni znanstveni članek
Oznake: nucleate boiling;thin metallic foils;surface laser micro-engineering;infrared thermometry;heat flux partitioning;
In this work, we studied the wall heat flux partitioning during the pool boiling of water on thin metallic surfaces. We conducted boiling experiments on surfaces where we engineered nucleation sites by nanosecond-fiber-laser texturing. These nucleation sites form triangular lattice patterns with dif ...
Leto: 2022 Vir: Fakulteta za strojništvo (UL FS)
ǂThe ǂrole of the electric field in the departure of vapor bubbles in microgravity
Mattia Bucci, Matevž Zupančič, A. I. Garivalis, A. Sielaff, Paolo Di Marco, Iztok Golobič
Izvirni znanstveni članek
Oznake: microgravity;liquid-vapor interface;electrophoresis;heat transfer;dielectric properties;electrostatics;bubble dynamics;electric field;force balance;International Space Station;
We present the results of a study aimed at investigating the effects of electric fields on quasi-static bubble departure dynamics during pool boiling of perfluorohexane (FC-72) in microgravity conditions. Analysis was performed through an alternative formulation of the bubble momentum balance in whi ...
Leto: 2023 Vir: Fakulteta za strojništvo (UL FS)
Coalescence-induced jumping of bubbles in shear flow in microgravity
M. Q. Raza, Moritz von Köckritz, Julien Sebilleau, Catherine Colin, Matevž Zupančič, Mattia Bucci, Tadej Troha, Iztok Golobič
Izvirni znanstveni članek
Oznake: interfacial phenomena;shear flow;nucleate boiling;coalescence;International Space Station;microgravity;image processing;
Bubble removal from a solid surface is of significant importance to many technical processes and applications. In addition to the conventional buoyancy-aided bubble removal, there is also a passive strategy to remove bubbles from a solid surface via coalescence. However, likewise several processes, ...
Leto: 2023 Vir: Fakulteta za strojništvo (UL FS)
Experimental investigation of the impact of surface tension and artificial nucleation site geometry on the bubble growth
Matevž Vodopivec, MG Berhe, Mattia Bucci, Matevž Zupančič, Donato Fontanarosa, Matic Može, S. Castagnet, Iztok Golobič, Maria Rosaria Vetrano
Objavljeni znanstveni prispevek na konferenci
Oznake: mehurčkasto vrenje;površinska napetost;mikrojamice;femtosekundni laserji;funkcionalizacija površin;nucleate boiling;surface tension;microcavities;femtosecond lasers;surface functionalization;
The present work provides an experimental assessment of the impact of liquid surface tension on the single bubble dynamics generated by artificial nucleation cavities during boiling in a quiescent liquid. De-ionized water is used with and without added non-ionic surfactant (Dynol 800) to modify the ...
Leto: 2024 Vir: Fakulteta za strojništvo (UL FS)
Enhanced nucleate boiling of Novec 649 on thin metal foils via laser-induced periodic surface structures
Matevž Zupančič, Donato Fontanarosa, Matic Može, Mattia Bucci, Matevž Vodopivec, Balasubramanian Nagarajan, Maria Rosaria Vetrano, Sylvie Castagne, Iztok Golobič
Izvirni znanstveni članek
Oznake: nucleate boiling;heat transfer enhancement;dielectric fluids;thin metallic foils;laser microstructuring;surface structures;
The low boiling temperature of dielectric fluids makes them suitable for satisfying the cooling requirements of advanced high-energy-density devices commonly found in microelectronics. However, the high wettability/wickability of such coolants significantly affects the boiling dynamics, opening new ...
Leto: 2024 Vir: Fakulteta za strojništvo (UL FS)
Št. zadetkov: 7
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