The Rayleigh-Bénard theory by Grossmann and Lohse [J. Fluid Mech. 407, 27 (2000)] is extended towards very large Prandtl numbers Pr. The Nusselt number Nu is found here to be independent of Pr. However, for fixed Rayleigh numbers Ra a maximum in the Nu(Pr) dependence is predicted. We moreover offer the full functional dependences of Nu(Ra,Pr) and Re(Ra,Pr) within this extended theory, rather th...

To evaluate the influence of vehicle load and driving speed on permanent deformation characteristic asphalt mixture in high temperature rainy areas, Hamburg wheel tracking test was conducted under different conditions by changing load, loading frequency environment. The coupling effect moisture, overload discussed. Meanwhile, three kinds anti-rutting agents commonly used engineering were select...

We investigate the convective cooling of a fluid with quadratic equation state by performing three-dimensional direct numerical simulations flow fixed top-boundary temperature, which is lower than initial temperature. consider temperatures near density maximum, where nonlinearity expected to be important. When nonlinear, resultant vertical transport heat fundamentally different and significantl...

The authors consider a mathematical model for the coupled atmosphereocean system, namely, the coupled quasigeostrophic flow-energy balance model. This model consists of the large scale quasigeostrophic oceanic flow model and the transport equation for oceanic temperature, coupled with an atmospheric energy balance model. After reformulating this coupled model as a random dynamical system (cocyc...

We report an investigation of temperature profiles in turbulent Rayleigh–Bénard convection of water based on direct numerical simulations (DNS) for a cylindrical cell with unit aspect ratio for the same Prandtl number Pr and similar Rayleigh numbers Ra as used in recent high-precision measurements by Funfschilling et al. (J. Fluid Mech., vol. 536, 2005, p. 145). The Nusselt numbers Nu computed ...

Temperature and velocity oscillations have been found in a rectangular Rayleigh-Bénard convection cell, in which one large-scale convection roll exists. At Rayleigh number Ra=8.9x10(11) and Prandtl number Pr=4, temperature oscillations can be observed in most parts of the system and the oscillation period remains almost constant, tT=74+/-2 s. Velocity oscillation can only be found in its horizo...

Laboratory experiments were conducted to study heat transport characteristics in a nonhomogeneously heated fluid annulus subjected to rotation along the vertical axis (z). The nonhomogeneous heating was obtained by imposing radial and vertical temperature gradient (ΔT). The parameter range for this study was Rayleigh number, Ra=2.43×10-3.66×10, and Taylor number, Ta=6.45×10-27×10. The working f...

This study was aimed at studying the effect of yoga package (YP) with some selected asanas, Pranayama, Cleansing Practices, and Meditation on pain intensity, Inflammation, Stiffness, Pulse Rate(PR), Blood Pressure(BP), Lymphocyte Count( LC), Creactive protein(CRP), and Uric Acid(UA) level among subjects of Rheumatoid Arthritis (RA). Two Randomized Group Design was employed for pre and post obse...