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Keywords: Conduction
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Journal Articles
Article Type: Research-Article
J. Heat Transfer. May 2021, 143(5): 051401.
Paper No: HT-20-1726
Published Online: March 19, 2021
...C. Y. Wang The basic problem of steady-state heat conduction in a ring with internal heat generation and convective boundary conditions is considered. An exact solution is found for the ring with a rectangular cross section and an efficient Ritz method is presented for general cross sections. The...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. August 2019, 141(8): 082001.
Paper No: HT-19-1057
Published Online: June 17, 2019
...Hao Wu; Nan Gui; Xingtuan Yang; Jiyuan Tu; Shengyao Jiang Radiative and conductive heat transfer is fairly important in the nuclear pebble bed. A continuum model is proposed here to derive the effective thermal conductivity (ETC) of pebble bed. It is a physics-based equation determined by the...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. July 2019, 141(7): 071602.
Paper No: HT-18-1520
Published Online: May 17, 2019
...Sajad Yazdani; Hyun-Young Kim; Michael Thompson Pettes A device for measuring a plurality of material properties is designed to include accurate sensors configured to consecutively obtain thermal conductivity, electrical conductivity, and Seebeck coefficient of a single sample while maintaining a...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. December 2018, 140(12): 122301.
Paper No: HT-17-1658
Published Online: August 28, 2018
.... The errors standard deviation is taken as σ =0. To consider the influence of thermocouples number on the identified results, the number of thermocouples is reduced by half ( M  = 9). In the discretization process of heat conduction domain, the lengths of quadrilateral element are approximately...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. December 2018, 140(12): 124501.
Paper No: HT-18-1373
Published Online: August 28, 2018
... the 4 μ m aluminum layer from 613 °C to 301 °C. Introducing realistic anisotropy and inhomogeneity in the thermal conductivity (TC) of the CVD diamond has no significant effect on heat transfer if the aluminum film is on the CVD diamond growth face (with the highest TC). However, if the aluminum layer...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. November 2018, 140(11): 112005.
Paper No: HT-18-1222
Published Online: August 20, 2018
... established models for closed-cell polymer foams, the extinction coefficient and the effective thermal conductivity are obtained. The effect of opacifiers is modeled using (1) an effective refractive index for the polystyrene walls within a cell model for the EPS and (2) a superposition of extinction due to a...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. August 2018, 140(8): 082302.
Paper No: HT-17-1614
Published Online: June 29, 2018
... 10 2017 06 05 2018 Conduction Heat transfer Melting Manufacturing Solidification Loong-Ee Loh School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 Jie Song1 Joining Technology Group, Singapore Institute of...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. August 2018, 140(8): 082802.
Paper No: HT-17-1256
Published Online: June 29, 2018
...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) and...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. August 2018, 140(8): 082006.
Paper No: HT-17-1109
Published Online: June 29, 2018
..., 2018; published online June 29, 2018. Assoc. Editor: Alan McGaughey. 27 02 2017 17 02 2018 Conduction There are many situations in which knowledge of the sensitivities of a finite element model response with respect to some design variables is advantageous. Parameter...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. October 2018, 140(10): 104503.
Paper No: HT-17-1626
Published Online: June 11, 2018
... /2, respectively. At ϕ  = 0.01, the dimensionless spreading resistance is 1.40, 2.19, and 7.34 times that for a flat surface when α  =  π /6, π /3, and π /2, respectively. Conduction The phenomena of spreading (constriction) and contact resistance are illustrated in Fig. 1 , a...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. October 2018, 140(10): 102006.
Paper No: HT-18-1044
Published Online: June 8, 2018
... removing the nonphysical discontinuities often assumed in the flux distributions produced by discrete devices such as HEMTs. Since only steady-state problems were considered in Refs. [ 4 ] and [ 10 ], as well as in the current work, the only material property of significance is the thermal conductivity...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. September 2018, 140(9): 092004.
Paper No: HT-17-1607
Published Online: May 25, 2018
... a class of many-particle thermal diodes: the diodes allow heat conduction from one direction with invisibility, but prohibit the heat conduction from the inverse direction with visibility. This work reveals a different mechanism for thermal camouflage and thermal rectification by using composites...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. September 2018, 140(9): 092404.
Paper No: HT-17-1272
Published Online: May 25, 2018
... Conductivity of Single-Layer Graphene Due to Selective Electron-Phonon Coupling: A First-Principles Study ,” Phys. Rev B , 93 , p. 125432 . 10.1103/PhysRevB.93.125432 [25] Landon , C. D. , and Hadjiconstantonou , N. G. , 2014 , “ Deviational Simulation of Phonon Transport in Graphene Ribbons...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. October 2018, 140(10): 102002.
Paper No: HT-18-1045
Published Online: May 25, 2018
... conductivity, c p is the specific heat capacity, Pr t is the turbulent Prandtl number, and q ext are the external heat sources. T ref is the reference temperature, used to compute the thermal expansion coefficient. When only the fluid temperature is solved for, all interior boundaries are handled...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. October 2018, 140(10): 102001.
Paper No: HT-17-1685
Published Online: May 25, 2018
... − a ,   ρ c = ( ρ c ) 0 b 3 ( r − a ) 2 r 2 ( b − a ) 3 where a and b are the inner and outer radius of the cylindrical cloak; r and θ are the cylindrical coordinates; κ , ρ , and c are the thermal conductivity and the...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. October 2018, 140(10): 101301.
Paper No: HT-17-1732
Published Online: May 25, 2018
... publication in the J OURNAL OF H EAT T RANSFER . Manuscript received December 4, 2017; final manuscript received March 2, 2018; published online May 25, 2018. Assoc. Editor: Alan McGaughey. 04 12 2017 02 03 2018 Conduction Heat and mass transfer The semi-infinite (SI) solid...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. September 2018, 140(9): 091301.
Paper No: HT-17-1631
Published Online: May 22, 2018
...X. F. Hu; W. A. Yao; S. T. Yang Modeling of steady-state thermal conduction for crack and v-notch in anisotropic material remains challenging. Conventional numerical methods could bring significant error and the analytical solution should be used to improve the accuracy. In this study, crack and v...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. September 2018, 140(9): 092402.
Paper No: HT-17-1492
Published Online: May 22, 2018
... parameter γ = chemical reaction parameter References [1] Choi , S. U. S. , and Eastman , J. A. , 1995 , “ Enhancing Thermal Conductivity of Fluids With Nanoparticles ,” International Mechanical Engineering Congress and Exhibition , San Francisco, CA, Nov. 12–17, pp. 99 – 106...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. September 2018, 140(9): 092001.
Paper No: HT-17-1116
Published Online: May 22, 2018
...Christopher F. Cirenza; Thomas E. Diller; Christopher B. Williams A two-year study was conducted to engage undergraduate mechanical engineering students to approach heat transfer education in an active, hands-on manner and excite them to pursue research and graduate studies in the field. Physical...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. August 2018, 140(8): 082201.
Paper No: HT-17-1221
Published Online: May 7, 2018
... of the test plate was done using SOLIDWORKS software and was fabricated using rapid prototype techniques. The material used for the test fabrication of the plate was a low thermal conductivity nylon based material to reduce heat losses from the hot gas side to the path of non-contact side of the...