This dissertation presents a numerical approach to reach the equilibrium position of a misaligned journal bearing with radial loading. We consider the hydrodynamic Reynolds equation…
Large-scale structure is one of the most important fields in cosmology. It allows us to study the evolution of the Universe using the distribution of…
The exponential growth in computational capabilities, and the increasing reliability and precision of current simulation solvers, has fostered the use of Computational Fluid Dynamics (CFD) in the analysis of highly non-linear and complex flow problems. The nature of these flows usually involves a large number of scales and flow features, which makes it very challenging to achieve a clear understanding of the inherent problem.
In this thesis, a methodology to efficiently solve the multiphase flow through a porous media in the near wellbore region is presented. The mathematical models, the numerical methods and practical implementation details for a functional 2D solver are presented.
In underground mining, water inrush is a common hydrogeological hazard and is a deadly killer. Over the recent decades countless water inrush accidents have occurred in the main coal producing countries (China, India, Poland, Russia, etc.) and have killed thousands of miners.
Adaptation Strategies for Discontinuous Galerkin Spectral Element Methods by means of Truncation Err
In this work a p-adaptation (modification of the polynomial order) strategy based on the minimization of the truncation error is developed for high order discontinuous Galerkin methods. The truncation error is approximated by means of a truncation error estimation procedure and enables the identification of mesh regions that require adaptation.