IJITCS Vol. 11, No. 8, 8 Aug. 2019
Cover page and Table of Contents: PDF (size: 551KB)
Full Text (PDF, 551KB), PP.1-8
Views: 0 Downloads: 0
Finite differences, rectangular cooling fin, transport equation, two-dimensional problem, heat flux
The transport or advection-diffusion-reaction equation is a well-known partial differential equation employed to model several types of flux problems. The cooling fin problem is a particular case of such an equation. This work presents a straightforward model for the rectangular cooling fin in a problem. The model was based on the finite differences numerical method and an efficient implementation was developed in a high-level mathematical programming language. The accuracy was evaluated with different granularity levels of meshes, and two distinct boundary conditions are compared. In the first one, only prescribed temperatures are assumed at the four tips of the domain. For the second scenario, it is assumed a heat flux at one tip of a fin with the same geometrical shape. The achieved solutions produced by the algorithm were able to depict the temperature along the whole fin surface accurately. Furthermore, the algorithm reaches relevant performance for meshes up to 4257 points where the CPU time was about 33 seconds.
Thiago N. Rodrigues, "An Implementation of the Finite Differences Method for the Two-Dimensional Rectangular Cooling Fin Problem", International Journal of Information Technology and Computer Science(IJITCS), Vol.11, No.8, pp.1-8, 2019. DOI:10.5815/ijitcs.2019.08.01
[1]Sari M, Tunc H. Finite element based hybrid techniques for advection-diffusion-reaction processes. An International Journal of Optimization and Control: Theories & Applications, 2018, 8(2):127-136.
[2]Diego A. Garzón-Alvarado, C. H. Galeano, J. M. Mantilla. Computational examples of reaction-convection-diffusion equations solution under the influence of fluid flow: First example. Applied Mathematical Modelling, 2012, 36(10): 5029-5045.
[3]K. W. Morton, D. F. Mayers. In: Numerical Solution of Partial Differential Equations, Cambridge University Press, New York, 2005.
[4]Rober E. White. In: Computational Modeling with Method Analysis, CRC Press, 2003.
[5]Pratik Patel, Javal Modh, Amit Patel. Analysis of A Two Dimensional Rectangular Fin using Numerical Method and Validating with Ansys. International Journal for Scientific Research & Development, 2016, 4(2): 362-364.
[6]S. W. Ma, A. I. Behbahani, Y. G. Tsuei. Two-dimensional rectangular fin with variable heat transfer coefficient. International Journal of Heat and Mass Transfer, 1991, 34(1): 79-85.
[7]D. C. Look Jr., H. S. Kang. Effects of variation in root temperature on heat lost from a thermally non-symmetric fin. International Journal of Heat and Mass Transfer, 1991, 34(4-5): 1059-1065.
[8]A. Aziz, V. J. Luardini. Analytical and numerical modeling of steady periodic heat transfer in extended surfaces. Computational Mechanics, 1994, 14(5): 387-410.
[9]Rong Jia Su, Jen Jyh Hwang. Transient Analysis of Two-Dimensional Cylindrical Pin Fin with Tip Convective Effects. Heat Transfer Engineering, 1993, 20(3): 57-63.
[10]Wu Wen-Jyim Chen Cha'o-Kuang. transient response of a spiral fin with its base subjected to a sinusoidal form in temperature. Computers & Structures, 1991, 34(1): 161-169.
[11]Kyriakos D. Papadopoulos, Angel G. Guzmán-Garcia, Raymond V. Bailey. The response of straight and circular fins to fluid temperature changes. International Communications in Heat and Mass Transfer, 1990, 17(5): 587-595.
[12]E. Assis, H. Kalman. Transient temperature response of different fins to step initial conditions. International Journal of Heat and Mass Transfer, 1993, 36(17): 4107-4114.
[13]ANSYS, Inc.. ANSYS® Academic Research Mechanical. https://www.ansys.com/.
[14]Hooman Fatoorehchi, Hossein Abolghasemi. Investigation of Nonlinear Problems of Heat Conduction in Tapered Cooling Fins Via Symbolic Programming. Applications and Applied Mathematics: An International Journal, 2012, 7(2): 717-734.
[15]Chen-Ya Liu. A Variational Problem with Applications to Cooling Fins. Journal of the Society for Industrial and Applied Mathematics, 1961, 10(1): 19-29.
[16]Hooman Fatoorehchi, Hossein Abolghasemi. Investigation of Nonlinear Problems of Heat Conduction in Tapered Cooling Fins Via Symbolic Programming. Applications and Applied Mathematics: An International Journal, 2012, 7(2): 717-734.
[17]Kung, Kuang Yuan. Transient Analysis of Two-dimensional Rectangular Fin with Various Surface Heat Effects. In: Proceedings of the 5th WSEAS International Conference on Applied Mathematics (Math'04), Miami, Florida, 2004, 19:1-19:6.
[18]Dennis G. Zill, Warren S. Wright. Calculus: Early Transcendentals. Jones and Bartlett Publishers, Inc., USA, 2009.
[19]Lucia Catabriga. Boundary Value Problem (BVP) - 1D e 2D – Finite Differences Method. University Lecture, 2018 (in Portuguese).
[20]Steven C. Chapra, Raymond P. Canale. Numerical Methods for Engineers. McGraw-Hill, Inc., New York, USA, 2015.
[21]John W. Eaton, David Batemanm, S. Hauberg, Rik Wehbring. GNU Octave version 4.4.0 manual: a high-level interactive language for numerical computations, 2018.
[22]Thiago Nascimento Rodrigues. An Implementation of the Finite Differences Method for some Two-Dimensional Problems, Jun 2018, github.com/tnas/fdm.