[PDF] Top 20 Unsteady turbulent thermal convection

... A slight different approach but following the same lines of the second category are the works of Lundgren (1967), (1969). Instead of dealing with moment equations, the equations governing the probability density ... See full document

... the thermal timescale is longer than the period of the ...the turbulent fluxes (heat and momentum) do modify the modelled pulsation eigenfunctions and the oscillation frequencies [Gough, 1980, Balmforth, ... See full document

... ploys turbulent eddy diffusivity, was quite applied in simulating models of superficial mean concentration (Arya, 1999; Moreira et ...growing convection phase (Campos Velho 2003; Nunes et ... See full document

... the thermal boundary ...seasonal thermal energy storage ...free convection boundary layer flow over a vertical surface with Newtonian heating while Lesnic et ...free convection boundary layer ... See full document

... mixed convection boundary-layer flow of an electrically conducting micropolar fluid past a circular cylinder is investigated taking into account the effect of thermal radiation and heat generation or ... See full document

... Free convection flow occurs frequently in ...Magneto convection plays an important role in various industrial applications such as magnetic control of molten iron flow in the steel industry, liquid metal ... See full document

... collectors, thermal design of buildings, air conditioning, and recently, the cooling of electronic components and many other ...natural convection as a removal heat transfer mechanism, the energy provided ... See full document

... and plays an important role in the passive emergency cooling systems of advanced nuclear reactors. Furthermore, free convec- tion flows of non-Newtonian fluids with heat transfer play an important role in many industrial ... See full document

... The term in the R.H.S. of Eq. (2) is the Lorentz force which arises due to the interaction of the fluid velocity and the applied magnetic field and is permeability parameter. In writing Eq. (2), we have neglected the ... See full document

... natural convection flow over a heated vertical surface in a thermal stratified medium by using local non- similarity ...natural convection boundary layer flow on an isothermal vertical plate embedded ... See full document

... Radiation effect on a certain MHD free convection flow was presented by Ghaly [8]. Raptis [9] analysed the effect of thermal radiation on MHD flow. Radiation effects on heat transfer from a stretching ... See full document

... studied unsteady flow past an impulsively started vertical plate with heat and mass ...an unsteady MHD convection flow past a vertical moving plate embedded in a porous medium in the presence of ... See full document

... Profiles related to the normalized energy spectral density E of temperature fluctuations as a function of the frequency for various aspect ratio of channel and height Z* on median plane of active obstacle (X* = 0), are ... See full document

... The form of this equation is reminiscent of a chain of Fourier transforms with respect to the dummy variable |y| < ζ . One thus tries its inverse, multiplying by exp(iξy) and in- tegrating along the real axis of the ... See full document

... The predicted temperature along the flame front thickness is presented in Fig. 11. The cases that were investigated correspond to four turbulence intensities, for low and moderate turbulence intensity the calculated and ... See full document

... a widespread recognition both at the academic and civil society levels that the European Union induces democratic changes in Turkey within the context of the accession pr[r] ... See full document

... to turbulent flow, instead of having a set of vectors, we can have arrays of flow data that can be calculated using numerical simulation tools such as ANSYS Fluent, where each cell of a mesh has various associated ... See full document

... A technique for predicting steady and oscillatory aerodynamic loads on general configuration has been developed. The predic- tion is based on the Doublet-Lattice Method, Slender Body The- ory and Method of Images. The ... See full document

... one-equation turbulent model is derived in this work on the basis of the approach used for the k-epsilon ...general turbulent dissipation function in the equation for the turbulent kinetic ... See full document

... Consider steady state viscous flows in a pipe with arbitrary cross section under a constant pressure gradient as shown in Figure 6.. An arbitrary cross-section pipe subject to a constan[r] ... See full document