#### Filter Results:

- Full text PDF available (7)

#### Publication Year

2001

2015

- This year (0)
- Last 5 years (6)
- Last 10 years (14)

#### Publication Type

#### Co-author

#### Journals and Conferences

#### Key Phrases

Learn More

- R Narhe, D Beysens, V S Nikolayev
- Langmuir : the ACS journal of surfaces and…
- 2004

The dynamics of coalescence of two water sessile drops is investigated and compared with the spreading dynamics of a single drop in partially wetting regime. The composite drop formed due to coalescence relaxes exponentially toward equilibrium with a typical relaxation time that decreases with contact angle. The relaxation time can reach a few tenths of… (More)

- Vadim S Nikolayev, Daniel A Beysens
- Physical review. E, Statistical, nonlinear, and…
- 2002

We present a theoretical study related to a recent experiment on the coalescence of sessile drops. The study deals with the kinetics of relaxation towards equilibrium, under the action of surface tension, of a spheroidal drop on a flat surface. For such a nonspherical drop under partial wetting conditions, the dynamic contact angle varies along the contact… (More)

- Stanimir Iliev, Nina Pesheva, Vadim S Nikolayev
- Physical review. E, Statistical, nonlinear, and…
- 2005

We study a spontaneous relaxation dynamics of arbitrarily shaped liquid drops on solid surfaces in the partial wetting regime. It is assumed that the energy dissipated near the contact line is much larger than that in the bulk of the fluid. We have shown rigorously in the case of quasi-static relaxation using the standard mechanical description of… (More)

- V S Nikolayev, D Chatain, Y Garrabos, D Beysens
- Physical review letters
- 2006

Boiling crisis experiments are carried out in the vicinity of the liquid-gas critical point of H2. A magnetic gravity compensation setup is used to enable nucleate boiling at near critical pressure. The measurements of the critical heat flux that defines the threshold for the boiling crisis are carried out as a function of the distance from the critical… (More)

- D Beysens, D Chatain, V S Nikolayev, J Ouazzani, Y Garrabos
- Physical review. E, Statistical, nonlinear, and…
- 2010

Heat transport over large distances is classically performed with gravity or capillarity driven heat pipes. We investigate here whether the "piston effect," a thermalization process that is very efficient in weightlessness in compressible fluids, could also be used to perform long-distance heat transfer. Experiments are performed in a modeling heat pipe… (More)

- John Hegseth, Ana Oprisan, Yves Garrabos, Vadim S Nikolayev, Carole Lecoutre-Chabot, Daniel Beysens
- Physical review. E, Statistical, nonlinear, and…
- 2005

By performing near-critical fluid experiments in the weightlessness of an orbiting space vehicle, we have suppressed buoyancy-driven flows and gravitational constraints on the liquid-gas interface of a large gas bubble. At equilibrium, the liquid completely wets the walls of a cylindrical cell, and the bubble is pushed to the sidewall. In these experiments… (More)

- V Janeček, V S Nikolayev
- Physical review. E, Statistical, nonlinear, and…
- 2013

This theoretical and numerical study deals with evaporation of a fluid wedge in contact with its pure vapor. The model describes a regime where the continuous wetting film is absent and the actual line of the triple gas-liquid-solid contact appears. A constant temperature higher than the saturation temperature is imposed at the solid substrate. The fluid… (More)

- Y Garrabos, C Lecoutre-Chabot, J Hegseth, V S Nikolayev, D Beysens, J P Delville
- Physical review. E, Statistical, nonlinear, and…
- 2001

This study deals with a simple pure fluid whose temperature is slightly below its critical temperature and whose density is nearly critical, so that the gas and liquid phases coexist. Under equilibrium conditions, such a liquid completely wets the container wall and the gas phase is always separated from the solid by a wetting film. We report a striking… (More)

- V S Nikolayev, S L Gavrilyuk, H Gouin
- Journal of colloid and interface science
- 2006

For partial wetting, motion of the triple liquid-gas-solid contact line is influenced by heterogeneities of the solid surface. This influence can be strong in the case of inertial (e.g., oscillation) flows where the line can be pinned or move intermittently. A model that takes into account both surface defects and fluid inertia is proposed. The viscous… (More)

- T Charignon, P Lloveras, +4 authors V S Nikolayev
- Physical review. E, Statistical, nonlinear, and…
- 2015

Boiling crisis is a transition between nucleate and film boiling. It occurs at a threshold value of the heat flux from the heater called CHF (critical heat flux). Usually, boiling crisis studies are hindered by the high CHF and short transition duration (below 1 ms). Here we report on experiments in hydrogen near its liquid-vapor critical point, in which… (More)