Hermann F. Fasel

TL;DR: This work presents a high-order modified immersed interface method for the 2D, unsteady, incompressible Navier-Stokes equations in stream function-vorticity formulation that employs an explicit fourth-order Runge-Kutta time integration scheme, and a nine-point, four-order compact discretization of the Poisson equation for computation of the stream function.

TL;DR: In this article, the authors analyzed the energy flows that are connected to the dynamical behaviour of coherent structures in a transitional flat-plate boundary layer and showed that the occurrence of a spike must be attributed to an autonomous event and cannot be interpreted as just an epiphenomenon of the passage of a Λ-vortex.

TL;DR: In this paper, the stability of boundary-layer flows on a semi-infinite flat plate and the growth of disturbances in such flows are investigated by numerical integration of the complete Navier-Stokes equations for laminar two-dimensional flows.

TL;DR: In this article, a detailed comparison of the Navier-Stokes calculation with the various non-parallel theories is provided and it is shown that the good agreement of some of the theories with experiments is fortuitous and that the difference between experiments and theories concerning the branch I neutral location cannot be explained by nonparallel effects.

TL;DR: In this paper, the authors investigated the three-dimensional development of controlled transition in a flat-plate boundary layer using direct numerical simulation (DNS) using the complete Navier-Stokes equations.