...Ildebrando Pérez-Reyes; Luis Antonio Dávalos-Orozco It is a common practice to use ideal thermal boundary conditions to investigate natural convection. These correspond to very good conducting walls and to very bad conducting walls. In particular, this has been the case in natural convection...

...Fatma Habbachi; Fakhreddine S. Oueslati; Rachid Bennacer; Afif Elcafsi This paper is a numerical study conducted to investigate the conjugate flow and heat transfer occurring in three-dimensional (3D) natural convection. A cubical enclosure partially filled with porous block (central cubic...

...A. A. Busedra; S. Tavoularis Natural convective heat transfer in a concentric and a highly eccentric, vertical, open ended, annular channel has been investigated numerically. The inner to outer diameter ratio was 0.61, and the height to hydraulic diameter ratio was 18:1. Three heating modes were...

...; published online June 11, 2018. Assoc. Editor: Zhixiong Guo. 11 11 2017 06 04 2018 Forced convection Heat and mass transfer Heat transfer enhancement MHD Natural convection Radiative heat transfer Mixed convection The combined attribute of mixed convection and nonlinear...

...Asis Giri; Swastika Patel A computational study of natural convection from biheaters of finite thickness and finite conductivity placed on a finite thickness and a finite conductive bottom plate of a cavity is performed under constant heat input condition. Cavity is cooled by the sidewalls, while...

... Narain. 21 08 2017 14 03 2018 Computational fluid dynamics Heat transfer enhancement Natural convection Thermal systems Mixed convection References [1] Japikse , D. , 1973 , “ Advances in Thermo Syphon Technology ,” Advances in Heat Transfer , Vol. 9 , Academic...

...; final manuscript received March 22, 2018; published online May 22, 2018. Assoc. Editor: Zhixiong Guo. 23 10 2017 22 03 2018 The influence of variable sidewall temperatures on the combined surface radiation and natural convection in an enclosure with a discrete heater is investigated...

...Alan Lugarini; Admilson T. Franco; Silvio L. M. Junqueira; José L. Lage The present study considers the coupled natural convection and surface radiation process through an open fracture of a solid wall facing a reservoir containing isothermal quiescent fluid (air). The fracture is modeled...

...M. S. Astanina; E. Abu-Nada; M. A. Sheremet Numerical investigation of natural convective heat transfer and fluid flow in a differentially heated square cavity filled with a CuO-water nanofluid having variable properties is performed. Governing partial differential equations formulated...

... 08 09 2017 Computational fluid dynamics Forced convection Heat and mass transfer Natural convection Mixed convection Liquid metals are considered excellent coolant fluids for many engineering applications, e.g., in advanced nuclear reactors [ 1 ], as working medium...

... with distance in this direction. On a rate basis, the general form of conservation of energy requirement is (1) E ˙ gen = E ˙ cond + E ˙ conv (i) Heat transfer occurs by conduction along the bridge and natural convection in air. (ii) Heat conduction...

... of the hybrid nanofluid when the natural convection is very small. Moreover, the hybrid nanofluid composed of equal quantities of Cu and Al 2 O 3 nanoparticles dispersed in water base fluid has no significant enhancement on the mean Nusselt number compared with the regular nanofluid. Equations (21) – (24...

...-Dimensional Enclosure Utilizing Nanofluids ,” Int. J. Heat Mass Transfer , 46 ( 19 ), pp. 3639 – 3653 . 10.1016/S0017-9310(03)00156-X [12] Oztop , H. F. , and Abu-Nada , E. , 2008 , “ Numerical Study of Natural Convection in Partially Heated Rectangular Enclosures Filled With Nanofluids...

.... 4101 – 4111 . 10.1016/j.ijheatmasstransfer.2010.05.030 [18] Zhang , X.-R. , Chen , L. , and Yamaguchi , H. , 2010 , “ Natural Convective Flow and Heat Transfer of Supercritical CO2 in a Rectangular Circulation Loop ,” Int. J. Heat Mass Transfer , 53 ( 19–20 ), pp. 4112 – 4122...

...Ali J. Chamkha; Igor V. Miroshnichenko; Mikhail A. Sheremet The problem of unsteady conjugate natural convection and entropy generation within a semicircular porous cavity bounded by solid wall of finite thickness and conductivity has been investigated numerically. The governing partial...

... for publication in the J OURNAL OF H EAT T RANSFER . Manuscript received May 22, 2016; final manuscript received November 23, 2017; published online February 28, 2018. Assoc. Editor: Antonio Barletta. 22 05 2016 23 11 2017 Forced convection Heat and mass transfer MHD Natural convection...

...Asterios Pantokratoras This discussion concerns some doubtful results included in this paper. 19 08 2017 01 11 2017 Computational fluid dynamics Natural convection Mixed convection In this paper, the transformed momentum equation (Eq. (7) in Hayat et al. [ 1...

...Swastik Acharya; Sumit Agrawal; Sukanta K. Dash Natural convection heat transfer from a vertical hollow cylinder suspended in air has been analyzed numerically by varying the Rayleigh number (Ra) in the laminar (10 4 ≤ Ra ≤ 10 8 ) regime. The simulations have been carried out by changing the ratio...

... by the Heat Transfer Division of ASME for publication in the J OURNAL OF H EAT T RANSFER . Manuscript received May 1, 2016; final manuscript received August 24, 2017; published online January 17, 2018. Editor: Portonovo S. Ayyaswamy. 01 05 2016 24 08 2017 Forced convection Natural...

...Virkeshwar Kumar; Atul Srivastava; Shyamprasad Karagadde Natural convection during solidification of liquids is known to impact the freezing characteristics and also lead to defect formation. In this study, we report the findings of real-time interferometric observation of bottom-cooled...