The Kidder equation, with , and , is a second-order nonlinear two-point boundary value ordinary differential equation (ODE) on the semi-infinite domain, with a boundary condition in the infinite that describes the unsteady isothermal flow of a gas through a semi-infinite micro–nano porous medium and has widely used in the chemical industries. In this paper, a hybrid numerical method is introduced for solving this equation. First, by using the method of quasi-linearization, the equation is converted to a sequence of linear ODEs. Then these linear ODEs are solved by using the rational Legendre functions (RLFs) collocation method. By using 200 collocation points, we obtain a very good approximation solution and the value of the initial slope for , highly accurate to 38 decimal places. The convergence of numerical results is shown by decreasing the residual errors when the number of collocation points increases.
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January 2018
Research-Article
An Accurate Numerical Method for Solving Unsteady Isothermal Flow of a Gas Through a Semi-Infinite Porous Medium
Kourosh Parand,
Kourosh Parand
Department of Computer Sciences,
Shahid Beheshti University,
Tehran 19697-64166, Iran
e-mail: k_parand@sbu.ac.ir
Shahid Beheshti University,
Tehran 19697-64166, Iran
e-mail: k_parand@sbu.ac.ir
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Mehdi Delkhosh
Mehdi Delkhosh
Department of Computer Sciences,
Shahid Beheshti University,
Tehran 19697-64166, Iran
e-mail: mehdidelkhosh@yahoo.com
Shahid Beheshti University,
Tehran 19697-64166, Iran
e-mail: mehdidelkhosh@yahoo.com
Search for other works by this author on:
Kourosh Parand
Department of Computer Sciences,
Shahid Beheshti University,
Tehran 19697-64166, Iran
e-mail: k_parand@sbu.ac.ir
Shahid Beheshti University,
Tehran 19697-64166, Iran
e-mail: k_parand@sbu.ac.ir
Mehdi Delkhosh
Department of Computer Sciences,
Shahid Beheshti University,
Tehran 19697-64166, Iran
e-mail: mehdidelkhosh@yahoo.com
Shahid Beheshti University,
Tehran 19697-64166, Iran
e-mail: mehdidelkhosh@yahoo.com
Contributed by the Design Engineering Division of ASME for publication in the JOURNAL OF COMPUTATIONAL AND NONLINEAR DYNAMICS. Manuscript received January 8, 2017; final manuscript received July 1, 2017; published online October 9, 2017. Assoc. Editor: Dan Negrut.
J. Comput. Nonlinear Dynam. Jan 2018, 13(1): 011007 (9 pages)
Published Online: October 9, 2017
Article history
Received:
January 8, 2017
Revised:
July 1, 2017
Citation
Parand, K., and Delkhosh, M. (October 9, 2017). "An Accurate Numerical Method for Solving Unsteady Isothermal Flow of a Gas Through a Semi-Infinite Porous Medium." ASME. J. Comput. Nonlinear Dynam. January 2018; 13(1): 011007. https://doi.org/10.1115/1.4037225
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