Abstract
We present in this paper a mathematical model of the dispersion of atmospheric methane that is proposed for the surface of lake in the region of the Santo Antônio Hydroelectric Dam in the state of Rondônia of Brazil. The model was elaborated from a general diffusion-advection-reaction for methane in which the diffusion coefficient was evaluated with techniques of fuzzy-logic-based. The numerical approximation was obtained with the use of the finite element method (FEM) for the spatial approximations and the Crank-Nicolson method for the temporal approximations. The approach provided scenarios for the directional fields of methane fluxes for different time periods and the results suggest a relation to the location in the reservoir, with flooded biomass, and with advective components for the dispersion of the gas.
Supported by CAPES–Brazil.
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Diniz, G.L., Menezes, E.M. (2018). Modeling and Simulation of Methane Dispersion in the Dam of Santo Antonio – Rondônia/Brazil. In: Barreto, G., Coelho, R. (eds) Fuzzy Information Processing. NAFIPS 2018. Communications in Computer and Information Science, vol 831. Springer, Cham. https://doi.org/10.1007/978-3-319-95312-0_36
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