SFB 880

SFB 880

Fundamentals of High Lift for Future Civil Aircraft (SFB 880)


Prof. Dr.-Ing. habil. Manfred Krafczyk


The Collaborative Research Center880 (CRC) is concerned with the efficiency of the active high-lift of future commercial aircraft. Our group deals with the subproject A5, viz. aeroacoustic basics of porous surfaces using DNS and LES. A Lattice-Boltzmann Model will be extended for the simulation of flow and acoustics source and sink terms in pore spaces as well as for inner parts of the boundary layer to discretize the weakly compressible Navier-Stokes equations. Inside the porous medium Direct Numerical Simulation (DNS) will be conducted with a seamless transition to an LES domain which is coupled to a RANS simulation. The coupled scheme will be validated by experimental data for laminar flows in porous media and turbulent flows for a flat plate and a wing profile. Our associated partner, Prof. Moon from Univ. of Korea, Seoul, will conduct complementary simulations with an LES/DNS solver coupled to acoustic perturbation models.

- simulation of turbulence with the Lattice Boltzmann method in the turbulent boundary layer
- characterization of flow porous media for acoustics

Gottfried Wilhelm Leibniz Universität Hannover
Prof. Young J. Moon, Korea University
Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Standort Braunschweig