Results 121 to 130 of about 7,025,656 (234)

Turbulent Prandtl Number and its Use in Prediction of Heat Transfer Coefficient for Liquids

مجلة النهرين للعلوم الهندسية, 2007
A theoretical study is performed to determine the turbulent Prandtl number (Prt ) for liquids of wide range of molecular Prandtl number (Pr=1 to 600) under turbulent flow conditions of Reynolds number range 10000- 100000 by analysis of experimental ...
Basim O. Hasan
doaj  

Infinite Prandtl number limit of Rayleigh‐Bénard convection

, 2004
We rigorously justify the infinite Prandtl number model of convection as the limit of the Boussinesq approximation to the Rayleigh-Bénard convection as the Prandtl number approaches infinity. This is a singular limit problem involving an initial layer. ©
Xiaoming Wang, Wang, Xiaoming
core   +1 more source

Influence of Aspect Ratio on the Onset of Thermocapillary Oscillatory Convection in a Floating Half Zone of Large Prandtl Number Fluid

, 2003
The onset of oscillatory thermocapillary convection in a floating half zone of 10 cst silicon oil (Prandtl number 105.6) is studied by the three-dimensional and unsteady numerical simulation in microgravity environment (g=10~{-4}_{gearth}).
唐泽眉, 胡文瑞, Tang, ZM (reprint author), Chinese Acad Sci, Natl Micrograv Lab, Beijing 100080, Peoples R China.   +2 more
core   +1 more source

Near wall Prandtl number effects on velocity gradient invariants and flow topologies in turbulent Rayleigh-Bénard convection. [PDF]

Sci Rep, 2020
Yigit S, Hasslberger J, Klein M, Chakraborty N.   +3 more
europepmc   +1 more source

Bound on vertical heat transport at large Prandtl number

, 2007
We prove a new upper bound on the vertical heat transport in Rayleigh-Bénard con-vection at large (but finite) Prandtl number that agrees with the (optimal) Ra 1 3 bound (modulo logarithmic correction) on vertical heat transport for the infinite Prandtl ...
Xiaoming Wang, Wang, Xiaoming
core   +1 more source

Effect of Prandtl Number on Mixed Convective Heat Transfer from a Porous Cylinder in the Steady Flow Regime. [PDF]

Entropy (Basel), 2020
Yu S, Tang T, Li J, Yu P.
europepmc   +1 more source

Patterns and bifurcations in low–Prandtl-number Rayleigh-Bénard convection

, 2010
We present a detailed bifurcation structure and associated flow patterns for low–Prandtl-number (P=0.0002, 0.002, 0.005, 0.02) Rayleigh-Bénard convection near its onset.
P. Wahi, Verma, M. K., Wahi, P., Mishra, P. K., P. K. Mishra, M. K. Verma   +5 more
core   +1 more source

Numerical Study of Convective Flow of Casson Fluid Through an Infinite Vertical Plate with Induced Magnetic Field

East European Journal of Physics
The present objective is to numerically analyze the induced magnetic field (IMF) effect of an unsteady MHD flow of Casson fluid through two infinite vertical plates. The effect of radiative heat has been scrutinized. Governing non-dimensional PDEs of the
Hiren Deka, Parismita Phukan
doaj   +1 more source

Stationary statistical properties of Rayleigh-Bénard convection at large Prandtl number

, 2006
This is the third in a sequel in our study of Rayleigh-Bénard convection at large Prandtl number. More specifically we investigate if stationary statistical properties of the Boussinesq system for Rayleigh-Bénard convection at large Prandtl number are ...
Xiaoming Wang, Wang, Xiaoming
core   +1 more source

Enhancing Thermal-Hydraulic Modelling in Dual Fluid Reactor Demonstrator: The Impact of Variable Turbulent Prandtl Number

Energies
In response to the growing demand for advanced nuclear reactor technologies, this study addresses significant gaps in thermal-hydraulic modelling for dual fluid reactors (DFRs) by integrating Kays correlation to implement a variable turbulent Prandtl ...
Hisham Elgendy, Sławomir Kubacki, Konrad Czerski   +2 more
doaj   +1 more source