Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"adaptive time-stepping"”.
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Multiphysics modeling and simulation for large-scale integrated circuits
… decomposition scheme, parallel computing, and an adaptive time-stepping scheme are incorporated into the proposed multiphysics simulation. Significant reduction in computation time is achieved through the two numerical schemes and the parallel computing with multiple processors.
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Automating Heterogeneous Parallelism in Numerical Differential Equations
… intrinsically serial process due to progressive time-stepping that proves challenging to parallelize. Most of the approaches are linked to two broad categories; The first is the parallelism of the solver operations by making each solve faster, and the latter is the parallelism between the solves, …
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The numerical simulation of thin film flow over heterogeneous substrates
… is fully implicit and has embedded within it an adaptive time-stepping scheme that enables the same to be optimised in a controlled manner subject to a specific error tolerance. Contact lines are ubiquitous in the context of droplet spreading and the wellknown singularity which occurs there is …
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Adaptive Geometric Numerical Integration of Mechanical Systems
… In particular, we are interested in how time-step adaptivity can be achieved in conjunction with structure preserving properties without destroying the good long time integration properties which are typical for geometric integration methods. As a specific application we consider dynamic …
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Large Scale Simulation of Spinodal Decomposition
… where the thermal fluctuation is modeled by a time-space Brownian motion. The CH equation with the thermal fluctuation was first considered by Cook, so the extended CH equation is also known as the Cahn-Hilliard-Cook (CHC) equation. For studying the CHC equation, we are primarily interested in …
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Uncertainty quantification for integrated circuits and microelectrornechanical systems
… Monte Carlo simulators are often too time-consuming due to the huge number of repeated simulations. This thesis reports the development of several stochastic spectral methods to accelerate the uncertainty quantification of integrated circuits and MEMS. Stochastic spectral methods have …
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Comprehensive Computational Modeling of Hypergolic Propellant Ignition
… of non-linearities in the transient solution, an adaptive time stepping method is proposed for the homogeneous reactor. In this method, physical bounds are imposed on the explicit guess of a solution for assessing linear behavior, based on which, level of time step adaption is determined. This …