17 research outputs found
Preliminary calculations of flow in channel with triangular and rectangular obstacle
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
One way for calculating the interaction of flow with an elastic surface with nonlinear parameters
Solvers for Systems of Nonlinear Algebraic Equations - Their Sensitivity to Starting Vectors
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