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Keywords: Natural Convection
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Journal Articles
Article Type: Research-Article
J. Heat Transfer. July 2022, 144(7): 072601.
Paper No: HT-21-1779
Published Online: May 11, 2022
...J. M. Floryan; N. N. Haq; S. Panday An analysis of natural convection in horizontal slots has been carried out. It is demonstrated that a proper combination of heating and groove patterns can create a net horizontal fluid movement, which we refer to as the horizontal chimney effect. Groove shapes...
Includes: Supplementary data
Journal Articles
Article Type: Research-Article
J. Heat Transfer. June 2022, 144(6): 062601.
Paper No: HT-21-1551
Published Online: April 5, 2022
...Farah Zemani; Amina Sabeur A numerical investigation is performed to analyze air's steady natural convection phenomena in an enclosure with partial active sidewalls. A partition is attached to the hot wall for different active locations to study the effect of the partition position on the heat...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. April 2022, 144(4): 042601.
Paper No: HT-21-1307
Published Online: January 18, 2022
...Majed M. Alhazmy; Ibraheem Alqadi; Ali M. Al-Bahi This paper presents the results of a numerical simulation for the natural convection inside an enclosure that has an inner open square at its center. The inner square is open at the top and connected to the ceiling of the enclosure. The open inner...
Includes: Supplementary data
Journal Articles
Article Type: Research-Article
J. Heat Transfer. September 2021, 143(9): 093001.
Paper No: HT-21-1116
Published Online: July 27, 2021
... ) + [ ∇ · ρ v v ] = − ∇ p + [ ∇ · τ ¯ ¯ ] + ρ ref β ( T − T ref ) g e-mail:  fhinojosa@iq.uson.mx 19 02 2021 18 06 2021 27 07 2021 phase change material heat transfer closed cavity segmented wall natural convection...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. April 2021, 143(4): 042601.
Paper No: HT-20-1440
Published Online: February 22, 2021
... incompressible smoothed particle hydrodynamics natural convection heat transfer confined motion Boussinesq approximation particle image velocimetry (PIV) Heat transfer by natural convection in an enclosed space has received increasing attention in the past years because of its importance in many...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. April 2021, 143(4): 042602.
Paper No: HT-20-1514
Published Online: February 22, 2021
... 25 12 2020 22 02 2021 perforated cylinder natural convection Nusselt number hollow cylinder inline holes staggered holes correlation of Nusselt number More details about the pattern or arrangements of holes, illustration of X, and angular pitch for both staggered...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. March 2021, 143(3): 032601.
Paper No: HT-20-1252
Published Online: January 28, 2021
...Siva Subrahmanyam Mendu; Prasanta Kumar Das This paper reports the numerical investigations for steady-state natural convection in power-law fluids inside a square enclosure embedded with bottom discrete heaters. The lattice Boltzmann method (LBM) is employed to model the flow and heat transfer...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. December 2020, 142(12): 122602.
Paper No: HT-20-1150
Published Online: September 18, 2020
... out to complete a comparative assessment of the performance of both liquid sodium and gallium as cooling agents. e-mail:  blas.zamora@upct.es 09 03 2020 12 08 2020 18 09 2020 cylindrical cavity natural convection variable properties liquid metals nuclear emergency...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. September 2020, 142(9): 092603.
Paper No: HT-19-1544
Published Online: July 31, 2020
... only for the natural convection inside open cavities and that too only for one aspect ratio (AR). The validity of the approach had not been evaluated for inclined, as well as, shallow cavities. This study focuses on the analysis of the accuracy of RDA against extended domain approach (EDA) in open...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. May 2020, 142(5): 052601.
Paper No: HT-19-1264
Published Online: March 17, 2020
...Subhashish Dasgupta; Abhishek Gupta Flow acceleration by imposing flow channelization structures like chimneys and/or solid barriers to improve natural convection cooling in pure fluids, is a well-known technique and a thoroughly investigated topic in thermal engineering. However, accelerating flow...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. May 2020, 142(5): 052901.
Paper No: HT-19-1436
Published Online: March 13, 2020
.... Various types of anodization were examined with different thickness of anodic aluminum oxide layer (AAO), pore size distributions, and surface coloring conditions. A customized natural convection and thermal radiation experimental chamber was built to measure the cooling capacity and heat sink...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. March 2020, 142(3): 032601.
Paper No: HT-19-1240
Published Online: January 29, 2020
...Ashish Saxena; Suneet Singh; Atul Srivastava The phenomenon of natural convection is investigated in three-dimensional (3D) cavities with four adiabatic walls and one hot wall. The surface opposite to the hot wall is either a wall (closed cavity) at a lower constant temperature or is open...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. February 2020, 142(2): 022601.
Paper No: HT-19-1016
Published Online: January 6, 2020
...Omprakash S. Bharti; Devesh Rajan; Arun K. Saha; Malay K. Das The present research proposes an inverse natural convection algorithm for simultaneous estimation of correct values of Prandtl number (Pr) and Rayleigh number (Ra). The inverse problem is formulated as the minimization of appropriate...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. December 2019, 141(12): 122503.
Paper No: HT-19-1014
Published Online: October 8, 2019
...Hayder I. Mohammed; Donald Giddings Heat and mass transfer are investigated numerically with steady-state laminar natural convection through a vertical cylindrical enclosure filled with a liquid-saturated porous medium. The vertical wall is under a constant magnetic field and various durations...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. June 2019, 141(6): 062502.
Paper No: HT-18-1344
Published Online: April 17, 2019
...Wei Wang; Ben-Wen Li; Zhang-Mao Hu The coupled phenomena of radiative–magnetohyrodynamic (MHD) natural convection in a horizontal cylindrical annulus are numerically investigated. The buoyant flow is driven by the temperature difference between the inner and outer cylinder walls, while...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. March 2019, 141(3): 032501.
Paper No: HT-18-1565
Published Online: February 4, 2019
... online February 4, 2019. Assoc. Editor: Srinath V. Ekkad. 30 08 2018 21 12 2018 natural convection numerical simulation variable properties liquid metal enclosures Liquid metals such as mercury , gallium, or sodium are especially attractive for engineering...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. February 2019, 141(2): 022501.
Paper No: HT-17-1409
Published Online: November 26, 2018
...Salam Hadi Hussain; Mustafa Salah Rahomey Numerical simulations are carried out for fluid flow and natural convection heat transfer induced by a temperature difference between a hot inner cylinder with different geometries (i.e., circular; triangular; elliptic; rectangular; and rhombic) and a cold...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. January 2019, 141(1): 012501.
Paper No: HT-17-1560
Published Online: October 8, 2018
...Subhasisa Rath; Sukanta Kumar Dash Natural convection heat transfer from horizontal solid cylinders has been studied numerically by varying the Rayleigh number in the range of (1 0 4 ≤Ra≤1 0 8 ) and (1 0 10 ≤ Ra ≤ 1 0 13 ) for both laminar and turbulent flows, respectively. The computations were...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. June 2015, 137(6): 061005.
Paper No: HT-14-1159
Published Online: June 1, 2015
... of vertical enclosures in order to enhance the heat transfer; more complex is the discovery of the best configuration for maximum heat transfer resistance and mechanical strength through the optimal allocation of the vertical enclosures. constructal porous media ionic transfer natural convection...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. May 2015, 137(5): 052501.
Paper No: HT-14-1123
Published Online: May 1, 2015
..., 2015. Assoc. Editor: Wei Tong. 11 03 2014 31 12 2014 10 02 2015 Natural convective flow over narrow plates induces an inward flow near the edges of the plate causing the flow to be three-dimensional near the edges of the plate. This influences the heat transfer rate near...