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A Continuation Method of Parameter Inversion for Non-Equilibrium Convection--Dispersion Equation |
| CUI Kai;YANG Guo-Wei |
| Laboratory of High-Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080 |
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| Cite this article: |
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CUI Kai, YANG Guo-Wei 2005 Chin. Phys. Lett. 22 2738-2741 |
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Abstract Based on the homotopy mapping, a globally convergent method of parameter inversion for non-equilibrium convection-dispersion equations (CDEs) is developed. Moreover, in order to further improve the computational efficiency of the algorithm, a properly smooth function, which is derived from the sigmoid function, is employed to update the homotopy parameter during iteration. Numerical results show the feature of global convergence and high performance of this method. In addition, even the measurement quantities are heavily contaminated by noises, and a good solution can be found.
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| Keywords:
02.30.Zz
02.60.Pn
47.55.Mh
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Published: 01 November 2005
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