Steiner, JohannesJohannesSteinerRuprecht, DanielDanielRuprechtSpeck, RobertRobertSpeckKrause, RolfRolfKrause2021-10-152021-10-152014-10-31ENUMATH 2013 : Proceedings of ENUMATH 2013, the 10th European Conference on Numerical Mathematics and Advanced Applications, Lausanne, August 2013. - Cham, 2015. - (Lecture Notes in Computational Science and Engineering ; 103). - Pp. 195-202 (2015)http://hdl.handle.net/11420/10538The paper presents first a linear stability analysis for the time-parallel Parareal method, using an IMEX Euler as coarse and a Runge-Kutta-3 method as fine propagator, confirming that dominant imaginary eigenvalues negatively affect Parareal’s convergence. This suggests that when Parareal is applied to the nonlinear Navier-Stokes equations, problems for small viscosities could arise. Numerical results for a driven cavity benchmark are presented, confirming that Parareal’s convergence can indeed deteriorate as viscosity decreases and the flow becomes increasingly dominated by convection. The effect is found to strongly depend on the spatial resolution.enReynolds NumberLinear Stability AnalysisStability DomainDomain Decomposition MethodDrive CavityMathematikConference Paper10.1007/978-3-319-10705-9_19Other