.... For a classical surface, the product of this contact area, the local convection heat transfer coefficient, and the temperature difference between the drop and the wall represent the total instantaneous rate of thermal energy increase of the drop. This energy increase is equal to the product of the mass...

...Dong Yang; Xinyue Hu; Feilong Chen; Yingli Liu This study proposes the buoyancy and velocity field synergy principle and aims to enhance thermo-hydraulic performance in convective heat transfer. A mechanical energy conservation equation concerning synergy between buoyancy and velocity was derived...

..., then it is decreased by a further increase in Re. Moreover, based on the experimental results, an empirical correlation is proposed to compute the Nu ¯ depending on Re , D/d, and h/H with a ±2.65% standard deviation. jet impingement confined jet guiding baffle flat surface convective heat transfer Nusselt...

... based on a fractional Oldroyd-B constitutive model is derived. Moreover, the modified fractional Fourier's law considering thermal relaxation-retardation time is proposed, which applies in both the energy equation and the boundary condition of convective heat transfer. A new finite difference scheme...

...Wenhui Fan; Fengquan Zhong Turbulent flow and convective heat transfer of kerosene in coiled pipes with different wall boundary conditions and curvature radii of coiled pipes are numerically studied. The Reynolds-averaged Navier–Stokes equations are solved by finite volume method and the realizable...

... single-phase forced flow convective heat transfer model, originally developed for water-based nanofluids, was modified to include the effects of diffusion and mass balance of different shape nanoparticles within the laminar sublayer and turbulent layer of the flow. A new physics-based superposition heat...

... the turbine inlet temperatures. convective heat transfer jet impingement 3D heat conduction alternating direction implicit 15 05 2019 20 08 2019 17 03 2020 e-mail:  sahmed22@ncsu.edu Figure 9 shows the detailed Nusselt number distribution for Reynolds number (Re...

... convective heat transfer nozzle One of the most important parameters affecting the efficiency and power output of a gas turbine is the fluid temperature at the turbine inlet. Increasing the fluid temperature at the turbine inlet increases the output power and efficiency of the turbine. However...

... convection and thermal radiation in spiral-coiled tubes. The P-1 radiation and the renormalized group (RNG) k–ε turbulence models have been used to study the effect of thermal radiation and turbulent convection heat transfer in the spiral-coiled tube, respectively, over a wide range of Reynolds numbers...

... 07 04 2016 Convective heat transfer Heat transfer enhancement Non-Newtonian Numerical simulations Jets Wakes Impingement Cooling The analysis of Newtonian steady impinging flow and heat transfer is a classical problem [ 1 , 2 ]. Laminar non-Newtonian flows have received limited...

... = electrical resistivity (Ω m) τ = Thomson coefficient (VK −1 ) Nomenclature A = cross-sectional area (mm 2 ) b = interconnector size ( A b  =  b  ×  b ) (mm) d = TE element thickness (mm) D = depth (mm) h = convection heat transfer coefficient (Wm −2  K...

... on the endwall surface induced by the unsteady wakes. gas turbine convective heat transfer unsteady wake effect endwall heat transfer Gas turbine inlet temperatures have increased over the years to improve thermal efficiency. However, NO x emissions increase with the peak turbine inlet...

... using Al2O3-Water Nanofluid for an Electronic Liquid Cooling System ,” Appl. Thermal Eng. , 27 ( 8 ), pp. 1501 – 1506 . 10.1016/j.applthermaleng.2006.09.028 [13] Wen , D. , and Ding , Y. , 2004 , “ Experimental Investigation Into Convective Heat Transfer of Nanofluids at the Entrance...

... the mean Nusselt number of a heated rotating sphere for flows of 0 ≤ Re ≤ 500 . particulate flows convective heat transfer direct numerical simulation immersed boundary method direct forcing scheme The problem of convection heat (or mass) transfer over a heated rotating sphere...

... December 19, 2012; final manuscript received August 12, 2013; published online November 14, 2013. Assoc. Editor: Wilson K. S. Chiu. 19 12 2012 12 08 2013 stable nanofluids convective heat transfer large-scale production molecular dynamics Heat...

... microchannel convective heat transfer two-phase flow micro-PIV In flow boiling, the critical heat flux (CHF) condition declines with increasing mass quality [ 1 ]. Thus, to dissipate very high heat flux while avoiding CHF, low mass quality is required. Since low mass quality corresponds to nucleate...

... rib/cavity module width. superhydrophobic temperature jump length convective heat transfer laminar channel flow There has been much recent attention devoted to the dynamical interaction of liquid with SH surfaces. These surfaces exhibit a combination of micro- or nanoscale texturing...

... theory. High heat transfer coefficients could be obtained even in single-phase flow at high mass fluxes. A reasonable agreement was observed between experimental results and theoretical predictions recommended for convective heat transfer in thermally developing flows. Nomenclature Symbol...

... as Fluid ,” ASME J. Heat Trans. , 129 ( 2 ), pp. 141 – 153 . 10.1115/1.2402179 [7] Peles , Y. , Kosar , A. , Mishra , C. , Kuo , C. J. , and Schneider , B. , 2005 , “ Forced Convective Heat Transfer Across a Pin Fin Micro Heat Sink ,” Int. J. Heat Mass Transfer , 48 ( 17...

... encountered in convection heat transfer to upward turbulent flows of supercritical fluids in tubes. In this study, the effect of turbulent viscosity variations on heat transfer deterioration (HTD) and the mechanisms involved have been investigated. The results show that the suppression of the flow turbulence...