Bellan, P. M. (1997) An Effective Numerical Method for Linear Mode Conversion Problems. Journal of Computational Physics, 136 (2). pp. 654-659. ISSN 0021-9991. doi:10.1006/jcph.1997.5792. https://resolver.caltech.edu/CaltechAUTHORS:20171027-144728127
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Abstract
Linear mode conversion, an important issue in the physics of plasma waves, involves an ordinary differential equation of at least fourth order. Attempts to integrate this differential equation using conventional numerical methods typically fail to provide a physically sensible result. This failure occurs because small, unavoidable truncation and differencing errors excite nonphysical, mathematically allowed exponentially growing solutions which quickly overwhelm the desired physical solution. We present here a two-point boundary numerical method which avoids exciting these unwanted nonphysical solutions and so provides solutions that are physically significant. The numerical algorithm is a generalization of the standard tridiagonal method and provides single-pass solutions which satisfy the original difference equations to within the numerical accuracy of the computer.
Item Type: | Article | |||||||||
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Additional Information: | © 1997 Academic Press. Received 9 May 1997. | |||||||||
Issue or Number: | 2 | |||||||||
DOI: | 10.1006/jcph.1997.5792 | |||||||||
Record Number: | CaltechAUTHORS:20171027-144728127 | |||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20171027-144728127 | |||||||||
Official Citation: | P.M. Bellan, An Effective Numerical Method for Linear Mode Conversion Problems, In Journal of Computational Physics, Volume 136, Issue 2, 1997, Pages 654-659, ISSN 0021-9991, https://doi.org/10.1006/jcph.1997.5792. (http://www.sciencedirect.com/science/article/pii/S0021999197957922) | |||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
ID Code: | 82750 | |||||||||
Collection: | CaltechAUTHORS | |||||||||
Deposited By: | Tony Diaz | |||||||||
Deposited On: | 27 Oct 2017 21:56 | |||||||||
Last Modified: | 15 Nov 2021 19:52 |
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