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Humberto Esqueda¹, Salvador Botello², S.Ivvan Valdez³
Revista Internacional de Métodos Numéricos para Cálculo y Diseño en Ingeniería, Vol.40, No.3, pp. 1-24, 2024, DOI:10.23967/j.rimni.2024.08.002 - 27 August 2024
Abstract Floods produce enormous human and material losses every year. Evaluating their extent and severity, and especially simulating possible future scenarios can improve the response, mitigation and prevention oftheeffectsofthisphenomenon.Thispaper presentsa methodology toreproduce theextentoffloods producedbychannel overflows and recorded by satellite images, identifying the maximum discharge that produced it by means of the numerical solution of the 2D shallow water equations and Differential Evolution. The objective is to minimize the difference between the extent of the flooded area recorded in the satellite images, and that obtained in the simulation by adjusting the maximum value of the flow curve More >

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Yingge Ni¹, Peicheng Li², Hui Zhao¹, Shengjun Qiao¹
Revista Internacional de Métodos Numéricos para Cálculo y Diseño en Ingeniería, Vol.40, No.3, pp. 1-15, 2024, DOI:10.23967/j.rimni.2024.06.004 - 12 July 2024
Abstract The structural nonlinear aeroelastic analysis of folding wings is conducted by integrating the modified Doublet Lattice Method in this paper. Firstly, a modified Doublet Lattice Method is investigated to relax the aspect ratio limitation of aerodynamic elements, and its correctness is verified through numerical examples. Secondly, the rational function approximation method is discussed, and the modified Doublet Lattice Method is approximated using the minimum state method to obtain the unsteady aerodynamic forces in the time domain. Finally, the aeroelastic characteristics of a folding wing with free-play and friction nonlinearity are studied by integrating time-domain unsteady More >

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