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Keywords: finite difference methods
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Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. September 2012, 134(9): 094504.
Published Online: July 2, 2012
...Alaeddin Malek; Zahra Kalateh Bojdi; Parisa Nuri Niled Golbarg In the present work, we investigate laser heating of nanoscale thin-films irradiated in three dimensions using the dual phase lag (DPL) model. A numerical solution based on mixed-collocation, finite difference method has been employed...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. April 2012, 134(4): 041702.
Published Online: February 13, 2012
... is neglected which allows establishing a fully developed flow. The energy equation is solved by using a LU decomposition coupled with control volume technique based on finite difference method. Four thermal conductivity models are adopted in this paper, that is, constant thermal conductivity model, linear...
Journal Articles
Article Type: Heat Transfer In Nanochannels, Microchannels, And Minichannels
J. Heat Transfer. February 2012, 134(2): 020903.
Published Online: December 13, 2011
... 12 2011 coolants cooling equations of state finite difference methods flow simulation heat exchangers heat radiation Joule-Thomson effect natural convection refrigerators stainless steel temperature distribution temperature measurement turbulence Joule–Thomson microcooler...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. January 2012, 134(1): 011301.
Published Online: November 18, 2011
...Like Li; Renwei Mei; James F. Klausner; David W. Hahn Collisional heat transfer between two contacting curved surfaces is investigated computationally using a finite difference method and analytically using various asymptotic methods. Transformed coordinates that scale with the contact radius...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. November 2011, 133(11): 114501.
Published Online: August 31, 2011
.... catalytic surface reaction hydrogen/air numerical methods adsorption air boundary layers catalysis channel flow chemically reactive flow combustion desorption external flows finite difference methods finite volume methods flames flow instability flow simulation flow through porous...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. September 2011, 133(9): 092602.
Published Online: July 27, 2011
... the regions were obtained in terms of various parameters such as inertial force, Grashof, Reynolds, and Brinkman numbers, as well as various types of viscous dissipation models. In addition, numerical solution was conducted using finite difference method to compare the results. The predicted results clearly...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. September 2011, 133(9): 092601.
Published Online: July 7, 2011
... 2011 07 07 2011 07 07 2011 finite difference methods flow through porous media natural convection partial differential equations thermal diffusion free convection Darcy porous medium Soret and Dufour effects Keller-Box Convective flow through porous media...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. May 2011, 133(5): 052601.
Published Online: February 2, 2011
... an implicit finite difference method under the similarity assumption and these results are used to compute the entropy generation rate N s , irreversibility ratio Φ , and the Bejan number Be for both Newtonian and non-Newtonian fluids. The effects of viscous frictional parameter G , Rayleigh number Ra...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. February 2011, 133(2): 022502.
Published Online: November 2, 2010
... boundary layers convection external flows finite difference methods friction laminar flow magnetohydrodynamics plates (structures) stagnation flow boundary layer dual solutions induced magnetic field MHD mixed convection Velocity profiles for fixed M = 0.2 and Pr...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. December 2010, 132(12): 122901.
Published Online: September 22, 2010
.... 76 – 85 . 10.1115/1.1824108 25 01 2010 28 06 2010 22 09 2010 22 09 2010 carbon chemically reactive flow computational fluid dynamics confined flow dissociation finite difference methods finite volume methods heat radiation hydrogen nucleation swirling flow...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. November 2010, 132(11): 114502.
Published Online: August 16, 2010
...M. Tadi This note is concerned with a fixed-grid finite difference method for the solution of one-dimensional free boundary problems. The method solves for the field variables and the location of the boundary in separate steps. As a result of this decoupling, the nonlinear part of the algorithm...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. November 2010, 132(11): 112701.
Published Online: August 13, 2010
... (the other three boundaries are black) and is isotropically scattering. The transient differential energy equation is discretized by the fully implicit finite difference method, and the radiative source term of the energy equation is expressed by the radiative transfer coefficients (RTCs). The integrality...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. November 2010, 132(11): 111701.
Published Online: August 10, 2010
...T. Chinyoka We investigate, using direct numerical simulations, the effects of viscoelasticity on pressure driven flows of thermally decomposable liquids in channels. A numerical algorithm based on the finite difference method is implemented in time and space with the Phan–Thien–Tanner as the model...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. October 2010, 132(10): 104503.
Published Online: July 28, 2010
... and active method for enhancing heat transfer. 07 02 2010 16 04 2010 28 07 2010 28 07 2010 convection finite difference methods heat exchangers thin films conduction convection fins enhancements thin films Fins are widely used in the industry, especially...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. August 2010, 132(8): 081303.
Published Online: June 9, 2010
...Chandrashekhar Varanasi; Jayathi Y. Murthy; Sanjay Mathur A meshless finite difference method is developed for solving conjugate heat transfer problems. Starting with an arbitrary distribution of mesh points, derivatives are evaluated using a weighted least-squares procedure. The resulting system...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. August 2010, 132(8): 081401.
Published Online: May 20, 2010
... transfer is complicated by the forced flow. The governing unsteady, two-dimensional flow and energy equations for the gas cavity and unsteady heat conduction equation for solid walls, written in dimensionless form, have been solved using implicit finite-difference method. The solution has been obtained...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. May 2010, 132(5): 054503.
Published Online: March 9, 2010
..., respectively 29 06 2009 02 09 2009 09 03 2010 09 03 2010 convection finite difference methods heat conduction shapes (structures) temperature distribution thermal conductivity transient heat conduction hollow cylinder variable thermal conductivity optimal...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. January 2010, 132(1): 011702.
Published Online: October 26, 2009
... based on the common finite difference method. Numerical calculations are carried out for the case of a representative water-based magnetic fluid and for specific values of the dimensionless parameters entering into the problem, and the obtained results are presented graphically for these values...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. December 2009, 131(12): 121007.
Published Online: October 15, 2009
..., gravity, phase change, and viscosity. The level set method is used to capture the movement of the liquid-vapor interface. The governing equations are solved using finite difference method. Spray cooling is studied using this model, where a vapor bubble is growing in a thin liquid film on a hot surface...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. July 2009, 131(7): 074504.
Published Online: May 12, 2009
... fuel rods. The finite difference method used to solve the problem utilizes an implicit formulation of the governing equation, and a numerical technique for handling the nonlinear terms. Validation of the numerical solution is obtained by comparing the results at a specified time against those generated...