Examinando por Materia "Transferencia de calor"

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    Análisis bidimensional axial simétrico de los termoflujos en un tubo de calor
    (Universidad EAFIT, 2012) Mira Hernández, Carolina; París Londoño, Luis Santiago
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    Compendium of publications on: differential operators on manifolds for CAD CAM CAE and computer graphics
    (Universidad EAFIT, 2020) Mejía Parra, Daniel; Ruiz Salguero, Oscar Eduardo; Posada Velásquez, Jorge León; Vicomtech Foundation, Basque Research and Technology Alliance (BRTA), Mikeletegi 57, Donostia / San Sebastián 20009, Spain.
    This Doctoral Thesis develops novel articulations of Differential Operators on Manifolds for applications on Computer Aided Design, Manufacture and Computer Graphics, as follows: (1) Mesh Parameterization and Segmentation. Development and application of Laplace-Beltrami, Hessian, Geodesic and Curvature operators for topology and geometry – driven segmentations and parameterizations of 2-manifold triangular meshes. Applications in Reverse Engineering, Manufacturing and Medicine. (2) Computing of Laser-driven Temperature Maps in thin plates. Spectral domain - based analytic solutions of the transient, non-homogeneous heat equation for simulation of temperature maps in multi-laser heated thin plates, modeled as 2-manifolds plus thickness. (3) Real-time estimation of dimensional compliance of hot out-of-forge workpieces. A Special Orthogonal SO(3) transformation between 2-manifolds is found, which enables a distance operator between 2-manifolds in R^3 (or m-manifolds in R^n). This process instruments the real-time assessment of dimensional compliance of hot workpieces, in the factory floor shop. (4) Slicing or Level-Set computation for 2-manifold triangular meshes in Additive Manufacturing. Development of a classification of non-degenerate (i.e. non-singular Hessian) and degenerate (i.e. singular Hessian) critical points of non-Morse functions on 2-manifold objects, followed by computation of level sets for Additive Manufacturing. Most of the aforementioned contributions have been screened and accepted by the international scientific community (and published). Non-published material corresponds to confidential developments which are commercially exploited by the sponsors and therefore banned from dissemination.
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    Estudio computacional de la transferencia de calor por radiación en campo cercano
    (Universidad EAFIT, 2023) Zambrano Corado, Yordani; David Caro, Jorge León
    The objective of this research is to conduct a computational study of near-field radiative heat transfer (NFRHT), given the significant importance of this phenomenon in various technological applications. To implement new sensors or actuators with better performance than the current ones, it is necessary to model the NFRHT phenomenon and observe its behavior in new materials, with the aim of optimizing this property in them. The research conducted is descriptive in nature, as an analytical method was used to characterize a physical phenomenon through its properties. Additionally, various classification criteria were considered to systematically organize the equations involved in the theory underlying this phenomenon.