Applications and numerical investigation of differential-algebraic equations
Date
2010-05-01
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Abstract
Differential-algebraic equations (DAEs) result in many areas of science and engineer-
ing. In this thesis, numerical methods for solving DAEs are compared for two prob-
lems, energy-economic models and traffic flow models. An energy-economic model is
presented based on the Hubbert model of oil production and is extended to include
economic factors for the first time. Using numerical methods to simulate the DAE
model, the resulting graphs break the symmetry of the traditional Hubbert curve.
For the traffic flow models, a numerical method is developed to solve the steady-state
flow pattern including the linearly unstable regime, i.e. solutions which cannot be
found with an initial value solver.
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Keywords
Numerical method, Differential-algebraic equation, Oil production, Traffic modelling