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In this work, a numerical scheme using Crank-Nicolson scheme and the high-order Finite Difference Method were used, respectively, for the temporal and spatial discretization of the nonlinear two-dimensional convection-diffusion equation. Numerical applications are implemented and valuated making use of the L 2 error norm and the numerical results were compared with the exact solution obtained via literature review.

Numerical experiments for four test problems are carried out to demonstrate the performance of the present method and to compare it with the others classical methods. The numerical solutions obtained are compared with the analytical solution as well as the results by other numerical schemes with emphasis on the application involving heat exchange in a rectangular channel. It can be easily seen that the proposed method is simple to implement and very efficient.

The three point bending test, according the Brazilian Standard ABNT NBR 7190, enables to identify the values of two wood properties: conventional modulus of elasticity and conventional strength on static bending test. With the results, this study aimed to perform a numerical simulation using the finite element software ABAQUS and the experimental results of three point bending test using Simarouba amara Aubl wood specie test proofs. Two analysis were performed, considering wood as elastoplastic material in the first and the second, considering only elastic material. From stress-strain diagrams results, it was observed the evaluation of modulus of elasticity on static bending test is not valid due to material non-linearity. A constitutive model was proposed for Simarouba amara Aubl. wood specie and for evaluation of modulus of elasticity on static bending. It was performed a comparative analysis between experimental results and the proposed constitutive model. These models showed their efficiency when evaluated the normal stress on proof test with demonstrated accuracy, allowing its use by wood structures designers.

A relevant analysis for the design of buildings is wind-induced loading. Although this has led to numerous studies, there have been relatively few investigations on the effects of parapets on wind loads. This systematic review addressed quantitative and qualitative behavior of wind loads in buildings with parapets in the Web of Science, ScienceDirect, SCOPUS, and Compendex databases. Using alternative methods such as citation searches and websites were selected 6 research articles were and added 6 papers. The results treat the influence of parapets on the behavior of the wind on roofs of low-rise buildings, especially wind loads, and its correlation with the building's geometric characteristics and parapets. The results identified pressure increases on roofs for low parapets (h<1.0 m); however, the dates vary according to the h/H ratio. Also, in general, the higher the parapets, the highest the reduction in the intensities of the pressure coefficients. Still, the porous and cantilevered parapets are more efficient and economically viable as a device to mitigate wind loads when compared to solid parapets in low buildings. Finally, for an open canopy, the height of the parapet is the main parameter, although the length of the building is also relevant.