Browsing by Subject "Anàlisi numèrica"

Now showing items 1-20 of 897

    • 3D finite element computations for viscous aerodynamic flows around automobiles 

      Fischer, Thomas B.; Miquel Canet, Juan; Fruitós Bickham, Óscar Alejandro; Oñate Ibáñez de Navarra, Eugenio (1994-05)
      Research report
      Open Access

    • 3D numerical analysis of tunnelling effects on a multi-storey building: the case of Line 9 EPB tunnelling in Barcelona 

      Török, Viktória (Universitat Politècnica de Catalunya, 2021-06-21)
      Master thesis
      Open Access
      Juntament amb el desenvolupament de les infraestructures en zones urbanes, la necessitat de construcció de túnels augmenta. Aquestes excavacions subterrànies provoquen moviments en el terreny que poden estar associats amb ...

    • 3D numerical simulation of the load test on a masonry barrel arch bridge 

      Palermo, Roberta (Universitat Politècnica de Catalunya, 2019-07-26)
      Master thesis
      Open Access
      Simulate the test on a masonry barrel arch bridge that was developed at the Structural Technology Lab of the UPC. The arch was tested up to failure. Complete characterisation of the masonry, the infill, the loading and the ...

    • 3D printed scaled setup for smoke transport analysis in a subterranean passenger platform 

      Flores-Herrera, L.A.; Rivera-Blas, R.; Pérez-Cruz, J. Humberto; Muñoz-Aguirre, N.; Torres-Martínez, C.; Carbajal-Romero, M.F.; Vargas-Carmona, R.; Funes-Lora, M. (Universitat Politècnica de Catalunya. CIMNE, 2019)
      Article
      Open Access
      In this work, the study of smoke fire transportation inside of a subway passenger platform is presented. The study includes a set of numerical simulations to observe the behavior of the smoke inside the platform. Two smoke ...

    • A 4-node thin shell element based on co-rotational for laminated composite structures 

      Qiao, S.J.; Gao, H.S.; Hua, L.; Wang, F.S. (Universitat Politècnica de Catalunya. CIMNE, 2018)
      Article
      Open Access
      The finite formulation of the 4-node thin shell element based on Co-rotational (CR) and Timoshenko's theory was presented for the analysis of laminated composite structures. Based on the Timoshenko's theory the present ...

    • A branch-and-cut algorithm for the multidepot rural postman problem 

      Fernández Aréizaga, Elena; Laporte, Gilbert; Rodríguez Pereira, Jessica (2018-03)
      Article
      Open Access
      This paper considers the Multidepot Rural Postman Problem, an extension of the classical Rural Postman Problem in which there are several depots instead of only one. The aim is to construct a minimum cost set of routes ...

    • A C0 interior penalty Finite Element Method for flexoelectricity 

      Ventura, Jordi; Codony Gisbert, David; Fernández Méndez, Sonia (2021-09)
      Article
      Open Access
      We propose a C0 Interior Penalty Method (C0-IPM) for the computational modelling of flexoelectricity, with application also to strain gradient elasticity, as a simplified case. Standard high-order C0 finite element ...

    • A case study for the assessment of a dynamic passenger ride sharing mobility service 

      Linares Herreros, María Paz; Montero Mercadé, Lídia; Barceló Bugeda, Jaime; Casanovas Garcia, Josep; Carmona Bautista, Carlos; Serch, Oriol (2017)
      Conference report
      Restricted access - publisher's policy
      Sustainable mobility is not merely a technological question. While automotive technology will be part of the solution, it will also be combined with a paradigm shift from car ownership to vehicle usage, which itself will ...

    • A Cellular Automata Model for Integrated Simulation of Land Use and Transport Interactions 

      Norte Pinto, Nuno; Antunes, Antonio; Roca Cladera, Josep (Multidisciplinary Digital Publishing Institute (MDPI), 2021-03-08)
      Article
      Open Access
      Cellular automata (CA) models have been used in urban studies for dealing with land use change. Transport and accessibility are arguably the main drivers of urban change and have a direct influence on land use. Land use ...

    • A checkerboard-free symmetry-preserving conservative method for magnetohydrodynamic flows 

      Hopman, Johannes Arend; Trias Miquel, Francesc Xavier; Rigola Serrano, Joaquim (Institute of Physics (IOP), 2024)
      Conference report
      Open Access
      Simulating MHD flows at high Hartmann numbers and low magnetic Reynolds numbers is of high interest for the design of a nuclear fusion breeding blanket, for which high accuracy and conservation of physical properties are ...

    • A combined methodology for transportation planning assessment: application to a case study 

      Montero Mercadé, Lídia; Codina Sancho, Esteve; Barceló Bugeda, Jaime (2001-05)
      Article
      Open Access
      Traffic assignment models based on the user-equilibrium approach are one of the most widely used tools in transportation planning analysis. Resulting offer a static average view of the expected use of the road infrastructure ...

    • A combined rh-adaptive scheme based on domain subdivision. Formulation and linear examples 

      Askes, Harm; Rodríguez Ferran, Antonio (Wiley and Sons, 2001-09)
      Article
      Open Access
      An adaptive scheme is proposed in which the domain is split into two subdomains. One subdomain consists of regions where the discretization is refined with an h-adaptive approach, whereas in the other subdomain node ...

    • A comparative study of two compact finite difference methods: standard vs. mimetic 

      Córdova, Luis Joaquin; Rojas, Otilio; Otero Calviño, Beatriz; Castillo, José (Sociedad Venezolana de Métodos Numéricos en Ingeniería, 2014)
      Conference report
      Restricted access - publisher's policy
      In this work, we implement two fourth-order compact finite differences (CFD) methods and use them to model wave propagation on a elastic string. The formulation of the first method employs the standard implicit CFD constructed ...

    • A continuous-discontinous model for softening and cracking based on non-local displacements 

      Tamayo Mas, Elena; Rodríguez Ferran, Antonio (2008)
      Conference report
      Open Access
      A continuous-discontinuous model to simulate numerically an entire failure process is presented. Crack inception and its propagation is modelled by means of a gradient non-local model based on non-local displacements. To ...

    • A direct elimination algorithm for quasi-static and dynamic contact problems 

      Capua, Daniel di; Agelet de Saracibar Bosch, Carlos (2015-01-01)
      Article
      Open Access
      This paper deals with the computational modeling and numerical simulation of contact problems at Unite deformations using the Finite element method. Quasi-static and dynamic problems are considered and two particular ...

    • A discontinuous galerkin formulation for solid dynamics 

      Peraire Guitart, Jaume; Bonet Carbonell, Javier; Huerta, Antonio; Persson, Per Olof; Vidal Seguí, Yolanda (Omnipress, 2006)
      Lecture
      Open Access

    • A face-centred finite volume approach for coupled transport phenomena and fluid flow 

      Burcet Rodríguez, Martí; Oliveira, Beñat; Afonso, Juan Carlos; Zlotnik, Sergio (2024-01-01)
      Article
      Open Access
      We present a particular derivation of the face-centred finite volume (FCFV) method and study its performance in non-linear, coupled transport problems commonly encountered in geoscientific and geotechnical applications. ...

    • A factorization-based algorithm to predict EMG data using only kinematics information 

      Manzano, Marta; Serrancolí, Gil (2021-07-08)
      Article
      Open Access
      EMG analyses have several applications, such as identifying muscle excitation patterns during rehabilitation or training plans, or controlling EMG-driven devices. However, experimental measurements can be time consuming ...

    • A family of iterative methods that uses divided differences of first and second orders 

      Ezquerro, José Antonio; Grau Sánchez, Miguel; Hernández Verón, Miguel Angel; Noguera Batlle, Miquel (2015-11-01)
      Article
      Open Access
      The family of fourth-order Steffensen-type methods proposed by Zheng et al. (Appl. Math. Comput. 217, 9592-9597 (2011)) is extended to solve systems of nonlinear equations. This extension uses multidimensional divided ...

    • A faster algorithm to compute the visibility map of a 1.5D terrain 

      Löffler, Maarten; Saumell, Maria; Silveira, Rodrigo Ignacio (2014)
      Conference report
      Open Access
      Given a 1.5D terrain, i.e., an x -monotone polygonal line in R 2 with n vertices, and 1 m n viewpoints placed on some of the terrain vertices, we study the problem of computing the parts of the terrain that are visible ...