Viscosity, Thermal and Electrical Conductivities in Turbulent Convection
نویسندگان
چکیده
منابع مشابه
Breakdown of wind in turbulent thermal convection.
We report experiments on turbulent Rayleigh-Bénard convection of air in a cylindrical large-scale facility with a diameter of 7 meters and Rayleigh numbers up to Ra approximately 10(12). The facility is used to explore the structure of the large-scale circulation for continuously varying aspect ratios between Gamma approximately 1 and Gamma approximately 10. Using autocorrelation functions deri...
متن کاملExtraction of plumes in turbulent thermal convection.
We present a scheme to extract the velocity of buoyant structures in turbulent thermal convection from simultaneous local velocity and temperature measurements. Applying this scheme to measurements taken at positions within the convection cell where the buoyant structures are dominated by plumes, we obtain the temperature dependence of the plume velocity and understand our results using the equ...
متن کاملNumerical Simulation of Nonpenetrative Turbulent Thermal Convection
Nonpenetrative convection Ð in which the lower boundary condition is one of constant heat flux and the upper boundary is insulatedÐ is an idealization of penetrative convection, which finds application in the planetary boundary layer. Three-dimensional, unsteady, ( ) direct numerical simulations 96 = 96 = 128 have been performed of turbulent, nonpene7 trative thermal convection inside a cubical...
متن کاملTurbulent Thermal Convection with an Obstructed Sidewall
We present an experimental study of turbulent convection in a cell with staggered fingers on its sidewall using water as the convecting fluid. Our measurements reveal that Nu , Ra20.27, and that the temperature probability density function (PDF) at the cell center is a double-peaked function which can be fitted by the superposition of two Gaussians. Moreover, it is found that the size of the lo...
متن کاملElectrical and thermal conductivities of reduced graphene oxide/polystyrene composites
Articles you may be interested in Fabrication and mechanical characterization of graphene oxide-reinforced poly (acrylic acid)/gelatin composite hydrogels J. Investigation of thermal conductivity, viscosity, and electrical conductivity of graphene based nanofluids Thermal conductivity of composites with hybrid carbon nanotubes and graphene nanoplatelets Appl. High thermal conductivity epoxy-sil...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1981
ISSN: 0074-1809
DOI: 10.1017/s0074180900074064