The Experts below are selected from a list of 282 Experts worldwide ranked by ideXlab platform

J P Delville - One of the best experts on this subject based on the ideXlab platform.

  • Gas spreading on a heated Wall wetted by liquid.
    Physical review. E Statistical nonlinear and soft matter physics, 2001
    Co-Authors: Y Garrabos, C Lecoutre-chabot, J Hegseth, V S Nikolayev, D Beysens, J P Delville
    Abstract:

    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 change in the shape of the gas-liquid interface influenced by heating under weightlessness where the gas phase spreads over a hot solid surface showing an apparent contact angle larger than 90 degrees. We show that the two-phase fluid is very sensitive to the differential vapor recoil force and give an explanation that uses this nonequilibrium effect. We also show how these experiments help to understand the boiling crisis, an important technological problem in high-power boiling heat exchange.

  • Gas spreading on a heated Wall wetted by liquid
    Physical Review E : Statistical Nonlinear and Soft Matter Physics, 2001
    Co-Authors: Y Garrabos, C Lecoutre-chabot, J Hegseth, V S Nikolayev, D Beysens, J P Delville
    Abstract:

    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 change in the shape of the gas-liquid interface influenced by heating under weightlessness where the gas phase spreads over a hot solid surface showing an apparent contact angle larger than 90°. We show that the two-phase fluid is very sensitive to the differential vapor recoil force and give an explanation that uses this nonequilibrium effect. We also show how these experiments help to understand the boiling crisis, an important technological problem in high-power boiling heat exchange.

Y Garrabos - One of the best experts on this subject based on the ideXlab platform.

  • Gas spreading on a heated Wall wetted by liquid.
    Physical review. E Statistical nonlinear and soft matter physics, 2001
    Co-Authors: Y Garrabos, C Lecoutre-chabot, J Hegseth, V S Nikolayev, D Beysens, J P Delville
    Abstract:

    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 change in the shape of the gas-liquid interface influenced by heating under weightlessness where the gas phase spreads over a hot solid surface showing an apparent contact angle larger than 90 degrees. We show that the two-phase fluid is very sensitive to the differential vapor recoil force and give an explanation that uses this nonequilibrium effect. We also show how these experiments help to understand the boiling crisis, an important technological problem in high-power boiling heat exchange.

  • Gas spreading on a heated Wall wetted by liquid
    Physical Review E : Statistical Nonlinear and Soft Matter Physics, 2001
    Co-Authors: Y Garrabos, C Lecoutre-chabot, J Hegseth, V S Nikolayev, D Beysens, J P Delville
    Abstract:

    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 change in the shape of the gas-liquid interface influenced by heating under weightlessness where the gas phase spreads over a hot solid surface showing an apparent contact angle larger than 90°. We show that the two-phase fluid is very sensitive to the differential vapor recoil force and give an explanation that uses this nonequilibrium effect. We also show how these experiments help to understand the boiling crisis, an important technological problem in high-power boiling heat exchange.

M T Kamel - One of the best experts on this subject based on the ideXlab platform.

  • the distribution of velocities of a concentric sphere in a dilute dispersion of spheres sedimenting in a spherical Container
    Powder Technology, 1993
    Co-Authors: Elmer M. Tory, Monika Bargiel, M T Kamel
    Abstract:

    Abstract We consider the motion of identical spheres in an incompressible fluid which is bounded by a spherical Container Wall. The test sphere is momentarily concentric with the Container and the centres of the other spheres are distributed in the accessible region according to a Poisson process. We derive the third and fourth polyadic central moments of velocity and examine their components. These moments, together with the mean and covariance which are known from earlier work, provide a good description of the theoretical initial distribution. Estimates of the hard-sphere equilibrium distribution are obtained from computer simulations using a fixed number of hard spheres. Simulated values agreed closely with the theoretical, indicating that the Poisson assumption, which greatly simplifies the analysis, has little effect on the results. In small Containers, the vertical component of velocity is skewed downward and is platykurtic. In large Containers, the distributions of all components approach normality.

D Beysens - One of the best experts on this subject based on the ideXlab platform.

  • Gas spreading on a heated Wall wetted by liquid.
    Physical review. E Statistical nonlinear and soft matter physics, 2001
    Co-Authors: Y Garrabos, C Lecoutre-chabot, J Hegseth, V S Nikolayev, D Beysens, J P Delville
    Abstract:

    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 change in the shape of the gas-liquid interface influenced by heating under weightlessness where the gas phase spreads over a hot solid surface showing an apparent contact angle larger than 90 degrees. We show that the two-phase fluid is very sensitive to the differential vapor recoil force and give an explanation that uses this nonequilibrium effect. We also show how these experiments help to understand the boiling crisis, an important technological problem in high-power boiling heat exchange.

  • Gas spreading on a heated Wall wetted by liquid
    Physical Review E : Statistical Nonlinear and Soft Matter Physics, 2001
    Co-Authors: Y Garrabos, C Lecoutre-chabot, J Hegseth, V S Nikolayev, D Beysens, J P Delville
    Abstract:

    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 change in the shape of the gas-liquid interface influenced by heating under weightlessness where the gas phase spreads over a hot solid surface showing an apparent contact angle larger than 90°. We show that the two-phase fluid is very sensitive to the differential vapor recoil force and give an explanation that uses this nonequilibrium effect. We also show how these experiments help to understand the boiling crisis, an important technological problem in high-power boiling heat exchange.

V S Nikolayev - One of the best experts on this subject based on the ideXlab platform.

  • Gas spreading on a heated Wall wetted by liquid.
    Physical review. E Statistical nonlinear and soft matter physics, 2001
    Co-Authors: Y Garrabos, C Lecoutre-chabot, J Hegseth, V S Nikolayev, D Beysens, J P Delville
    Abstract:

    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 change in the shape of the gas-liquid interface influenced by heating under weightlessness where the gas phase spreads over a hot solid surface showing an apparent contact angle larger than 90 degrees. We show that the two-phase fluid is very sensitive to the differential vapor recoil force and give an explanation that uses this nonequilibrium effect. We also show how these experiments help to understand the boiling crisis, an important technological problem in high-power boiling heat exchange.

  • Gas spreading on a heated Wall wetted by liquid
    Physical Review E : Statistical Nonlinear and Soft Matter Physics, 2001
    Co-Authors: Y Garrabos, C Lecoutre-chabot, J Hegseth, V S Nikolayev, D Beysens, J P Delville
    Abstract:

    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 change in the shape of the gas-liquid interface influenced by heating under weightlessness where the gas phase spreads over a hot solid surface showing an apparent contact angle larger than 90°. We show that the two-phase fluid is very sensitive to the differential vapor recoil force and give an explanation that uses this nonequilibrium effect. We also show how these experiments help to understand the boiling crisis, an important technological problem in high-power boiling heat exchange.