Abstract:In modeling and simulation of dynamical processes frequently higher index differential-algebraic equations (DAEs) arise. Since an attempt to solve higher-index DAEs directly yields several numerical problems, a regularization in combination with a robust and efficient integration is required. QUALIDAES is a DAE solver designed to make explicit use of such a regularization. It allows for the solution of over-determined quasi-linear DAEs of the form M(x,t)ẋ = f (x,t), 0 = g(x,t). Such DAEs arise naturally if a q… Show more
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