17 research outputs found

    Preliminary calculations of flow in channel with triangular and rectangular obstacle

    No full text
    The paper presents the results of preliminary numerical calculations of a fluid flow in a channel with an obstacle. The flow problem was solved with an application of the finite elements method. Various geometries of obstacles were considered

    Solvers for Systems of Nonlinear Algebraic Equations - Their Sensitivity to Starting Vectors

    No full text
    In this note we compare the sensitivity of six advanced solvers for systems of nonlinear algebraic equations to the choice of starting vectors. We will report on results of our experiments in which, for each test problem, the calculated solution was used as the center from which we have moved away in various directions and observed the behavior of each solver attempting to find the solution. We are particularly interested in determining the best global starting vectors. Experimental results are presented and discussed
    corecore